WO2018223329A1

WO2018223329A1 - Control system and device for suppressing inrush current, and application method thereof

Info

Publication number: WO2018223329A1
Application number: PCT/CN2017/087559
Authority: WO
Inventors: 刘远芳
Original assignee: 刘远芳
Priority date: 2017-06-08
Filing date: 2017-06-08
Publication date: 2018-12-13
Also published as: CN107636923A; CN112072623A

Abstract

A control system and device for suppressing an inrush current, and application method thereof. The control system for suppressing an inrush current comprises: a control end (10), an application device (30), and a controller (20). The controller (20) is connected to the application device (30) and an external current, such that when a control signal of the control end (10) is received, the controller (20) prevents an inrush current from entering the application device (30) and control an action thereof.

Description

Control system and device for suppressing surge current and application method thereof

Technical field

The invention relates to a control system, in particular to a control system and device for suppressing surge current and an application method thereof, wherein a wireless or wired control system with surge current suppression and short circuit protection and a surge current suppression method thereof.

Background technique

With the development and popularization of smart homes, wireless control and remote control functions have penetrated into various electrical appliances, especially through wireless switches to control lighting, because of its advantages of free wiring, convenience, security, etc., more and more people Attention and popularity.

It can be understood that when the power supply of the wireless control or remote control appliance, especially the control appliance, is turned on and off, the control of the circuit in the electrical appliance is mainly controlled by a controller provided with a circuit-controlled switching component (such as a relay). Broken, however, when a capacitive load is set in the circuit that is controlled to be turned on and off, such as a common LED lamp, the internal driving power supply is a capacitive load, and at the instant of energization, the voltage across the filter capacitor at the front end of the driving power supply Can not be abrupt, causing the circuit to approximate the short-circuit state, generating a surge current with a very large instantaneous current. In this case, the contacts of the relay used to control the on-off of the circuit are easily dissolved by the strong current corrosion and cause stickiness, and the contact of the relay After the point is stuck, the LED controller that controls the LED light loses its role in controlling the luminaire.

In fact, the instantaneous current of the LED lamp is about 200 times of the normal working current within 10ms of the start-up time. For example, a 30W LED lamp has a normal operating current of 0.14A, but it has just turned on the power for 10ms. The instantaneous current reaches 27A. The huge instantaneous current will accelerate the oxidation of the alloy material of the relay contact, so that the relay will not reach the normal service life, so the relay must be replaced frequently. In the actual test, a relay with a rated current of 16A and an instantaneous peak current of 117A, and passed the TV-8 certification, when it controls a 100W LED lamp for the on-off life test, the relay is continuously turned on and off 2600 times. The contact is viscous. In general, the number of times that the relay with rated current of 16A is connected to the rated resistive load is usually about 100,000 times. It can be seen that the surge current of the capacitive load makes the life of the relay. Greatly reduced. Therefore, in the past, the method of solving the sticking of the relay contacts can only be frequency. Replace relays frequently, or use relays with higher current withstand capability. For example, 100W LED lamps do not use 2A relay control, but use 63A relays, but this increases the cost, increases the size of the product, and maintains The number of times. In addition, as shown in Figure 1, the waveform of the inrush current generated by the 100W LED lamp at the moment of power-on (within 10ms), wherein the 100W LED lamp is connected to 220V AC power, and the on-off current test is performed. Three times, the maximum current peak value is 130A, and the instantaneous inrush current is huge.

In addition, in the case of a short circuit with an electric appliance, such as an LED lamp, since the installation involves many human factors, it is often easy to cause a partial short circuit due to improper operation, and the controller of the LED controller is short-circuited even after the controller It can detect the occurrence of a short circuit, but the relay can not disconnect the power supply of the load immediately due to the hysteresis of 5-15mS time. As a result, the contact of the relay may be damaged due to the short circuit melting, or the fuse may be blown; in short, the existing Technical controllers for electrical appliances are expected to improve in terms of service life and reliability.

Summary of the invention

An object of the present invention is to provide a suppression surge current control system and apparatus and application method thereof, which have the functions of suppressing surge current and having short circuit protection, thereby improving the control system for suppressing surge current and the suppression wave The life of the inrush current control device.

It is an object of the present invention to provide a surge inrush current control system and apparatus and method of use thereof, wherein techniques for suppressing surge and short circuit protection are employed to make the present invention safer and more durable when controlling various capacitive loads.

An object of the present invention is to provide a suppression surge current control system and apparatus and application method thereof, wherein the controller for suppressing surge current control includes at least one control processing unit and at least one time domain waveform monitoring unit, such that The time domain waveform monitoring unit is configured to monitor a time domain waveform of the alternating current entering the controller, so that the control processing unit controls the control switch of the controller to operate at a position of the alternating current zero point, thereby causing an impact current applied by the application device. Minimal, even if the application device is not affected by inrush current.

An object of the present invention is to provide a suppression surge current control system and apparatus and application method thereof, wherein the controller includes at least one current detecting unit for monitoring a magnitude and a change of a load current, and to the control The processing unit provides current data to instantly trigger the control switch to be turned off when the current is too large, thereby ensuring circuit safety.

An object of the present invention is to provide a suppression surge current control system and apparatus and application method thereof, wherein the control processing unit includes at least one memory for writing a delay time of the control switch, such that at the trigger When the control switch is actuated, the operation delay time value is automatically advanced or delayed, so that the control switch opens and closes just at the zero-crossing position, so that the value of the inrush current flowing through the control switch is minimized.

In order to achieve at least one object of the above invention, the present invention provides a suppression surge current control system, including:

At least one control terminal;

At least one application device;

At least one controller connected to the application device and an external power supply circuit, such that when receiving the control signal of the control terminal, the controller avoids generating a surge current in the suppression surge current control system and controlling the application The device is activated.

In some embodiments, the controller includes at least one control processing unit, and a control switch electrically connected to the control processing unit, thereby controlling a voltage of the control switch in the external power supply circuit by the control processing unit Or the time domain waveform of the current is switched on/off at the zero position.

In some embodiments, the controller includes at least one time domain waveform monitoring unit for monitoring a time domain waveform of a voltage or current in the external power supply circuit and reporting the control processing unit.

In some embodiments, the controller includes at least one operating power module to convert the high voltage power input from the external power supply circuit to a low voltage DC power source to provide operating power to each module.

In some embodiments, the controller includes at least one transceiver module electrically coupled to the control processing unit to separately match and process the received control signal and transmit a corresponding signal to the control processing unit.

In some embodiments, the controller includes at least one current detecting unit electrically connected to the control processing unit for monitoring a magnitude and a change of a load current to trigger the control process when the current is excessive. The unit controls the control switch to be disconnected to ensure circuit safety.

In some embodiments, the control signal is implemented as a wireless control signal or a bus data control signal.

In some embodiments, the control terminal is a passive wireless switch or a remote controller.

In some embodiments, the application device is implemented as a group selected from the group consisting of a luminaire device, a switch, and a powered device having a capacitive load.

In some embodiments, the controller is implemented as a group selected from the group consisting of a luminaire controller, a switching power supply, and a capacitive load.

In some embodiments, the control-on relationship is selected from the group of electronic switches of semiconductor devices consisting of field effect transistors, thyristors, and thyristors.

In some embodiments, the control open relationship is selected from the group of electromagnetic controllers consisting of relays and contactors.

In some embodiments, the control processing unit includes at least one memory for storing a control program that causes the control switch to automatically act under the control of the control program.

In some embodiments, the control processing unit includes at least one memory for writing a delay time of the control switch, such that when the control processor triggers the control switch action, according to a pre-stored delay The time value is automatically advanced or delayed to cause the control switch to open and close just at the zero crossing point to minimize the value of the inrush current flowing through the control switch.

In some embodiments, when the time domain waveform of the voltage or current in the external power supply circuit is at a zero crossing position, the control switch is controlled by a level signal or a pulse width (PWM) signal output by the control processing unit. .

In some embodiments, the time domain waveform monitoring unit includes a transmission device coupled to the alternating current, implemented as one or more resistors and capacitors to communicate the external alternating current zero crossing information to the control processing unit.

In some embodiments, the current detecting unit includes a connected mutual inductance coil, a bridge stack, and two resistors to transmit the magnitude of the monitored current to the control processing unit.

In some embodiments, the control switch is comprised of at least one electronic switch, an optocoupler, connected to each other.

In some embodiments, the controller is installed inside or outside the application device and electrically connects the power of the application device and the external power supply circuit.

The invention also provides a method for suppressing surge current control, comprising the following steps:

(A) the transceiver module of the controller receives the control signal of the control terminal, and sends the control signal to the control processing unit;

(B) the control processing unit performs the zero-crossing detection on the alternating current signal sent by the time domain waveform monitoring unit;

(C) after receiving the control signal, the control processing unit detects the alternating current signal and outputs a signal to the control switch when the alternating current zero-crossing point;

(D) The control switch is controlled to be turned on and the capacitive load of the application device is turned on.

In some embodiments, the method further includes the following steps:

(E) The current detecting unit of the controller detects a current value in the power supply circuit after being energized.

In some embodiments, the controller is implemented as a luminaire controller, the application device being implemented as a luminaire device.

In some embodiments, the controller is implemented as a capacitive load controller.

In some embodiments, the control processing unit is implemented as a microcontroller and stores the control program in its memory.

In some embodiments, according to step (A), the power terminal of the controller is connected to AC5V-380V grid power and converted by the working power module into low voltage DC to supply power to the transceiver module and the control processing unit.

In some embodiments, according to step (A), the transceiver module is implemented as a high frequency wireless transceiver data module.

In some embodiments, the transceiver module is implemented as a logic module for wired transmission of data in accordance with step (A).

In some embodiments, according to step (A), the operating power module is implemented as a power module that converts high voltage AC to low voltage DC.

In some embodiments, according to step (A), the transceiver module of the controller is in an active state after being powered on to receive an external command from the control terminal at any time.

In some embodiments, according to step (A), when the transceiver module does not receive a signal instruction, the control processing unit causes the controller to be in a power-saving state, and the first input/output output is low. And the photocoupler of the control switch is not working, the control switch is in an off state, so that the controller is in a low power standby state, waiting for the arrival of the control signal.

In some embodiments, according to step (A), after receiving the instruction sent by the control terminal, the transceiver module demodulates the data, and transmits the data to the control processing unit through a serial port. .

In some embodiments, according to step (B), the second input/output of the control processing unit detects the time position of the zero crossing of the alternating current time domain waveform according to the change of the alternating current time domain waveform, when the current or voltage time domain of the alternating current When the waveform is just at the zero position, the first input/output 埠 of the control processing unit will output a high level to trigger the operation of the optocoupler to cause the control switch to conduct current to the application device.

In some embodiments, according to step (B), the time domain waveform monitoring unit is constituted by a RC element, The step of depressurizing the alternating current current provides the alternating current zero-crossing information for the control processing unit.

In some embodiments, according to step (C), the control switch is turned on or off in a period of alternating current during a period of alternating current in one cycle of alternating current under the control of the control processing unit, so that The control switch is subjected to minimal current surges, thereby suppressing the large inrush current generated by the capacitive load during startup.

In some embodiments, according to step (C), the control switch is gradually turned on a plurality of times at a zero crossing of a plurality of cycles of the alternating current under the control of the pulse width (PWM) signal by the control processing unit.

In some embodiments, according to step (D), the control switch is implemented as a group selected from the group consisting of a field effect transistor, a thyristor, a thyristor, a power transistor, or a semiconductor device.

In some embodiments, the control switch is formed by at least one transistor and at least one photocoupler connected in accordance with step (D).

In some embodiments, according to step (E), when the current detecting unit detects that the current exceeds a preset value, the control switch is directly triggered to be turned off.

In some embodiments, according to step (D), wherein the control switch is implemented as a group selected from the group consisting of a relay, a contactor, or an electromagnetic mechanical controller.

In some embodiments, when the control switch is a relay, there is at least one transistor drive element to facilitate driving of the control processing unit.

In some embodiments, the time at which the relay contacts are actually engaged is calculated by the control processing unit.

In some embodiments, the control processing unit compares the time at which the signal is sent and the actual pull-in time of the contact of the relay to obtain an actual delay time of the relay.

In some embodiments, the control processing unit writes the delay time to the memory for the control processing unit to call at any time.

In some embodiments, the control processing unit issues a closing command according to the delay time of the relay in advance or delay, so that the relay accurately picks up and turns on the power at the alternating current zero-crossing point, thereby avoiding the generation of a surge current.

In order to achieve the above at least one object, the present invention further provides a control device for suppressing a surge current, which is disposed between an external power supply circuit and an application device to supply power to the application device under control of a control signal at the control end. The invention comprises a transceiver module, a control processing unit, a control switch, and a working power module, which are electrically connected to each other, wherein the working power module is the electrical connection The module provides a required operating voltage and current, and the transceiver module receives the control signal and electrically transmits the control signal to the control processing unit, the control processing unit turns the control switch on or off when the alternating current is just at a zero crossing point To suppress the impact of inrush current.

In some embodiments, the control device for suppressing surge current includes at least one substrate, wherein the transceiver module, the control processing unit, the control switch, the working power module are disposed on the substrate, and are electrically Sexual connection.

In some embodiments, the control device for suppressing surge current includes at least one time domain waveform monitoring unit electrically connected to the control processing unit for monitoring time domain waveform data of the alternating current and reporting to the control processing unit So that the control switch is in the position of the zero crossing point every time under the control of the control processing unit, so that the current surge in the circuit is minimized when the application device is turned on or off.

In some embodiments, the control device for suppressing surge current includes an input end and an output end respectively disposed on the substrate, wherein the input end is connected to the external power supply circuit, and the output end is connected to The application device outputs power to the application device through the output terminal after inputting electrical energy through the input terminal.

In some embodiments, the output is output as continuous power or as a pulse width signal.

In some embodiments, the current of the external power supply circuit is implemented as alternating current or direct current.

In some embodiments, the controller includes at least one current detecting unit electrically connected to the control processing unit and the control switch for monitoring the magnitude and variation of the load current, and when the current is too large, Triggering the control switch is turned off.

In some embodiments, the control switch abuts and is fixed to the substrate and dissipates heat through the substrate to lower the operating temperature.

In some embodiments, the substrate is a metal plate.

In some embodiments, the substrate includes a circuit layer, an insulating layer, and a substrate, wherein the insulating layer is between the circuit layer and the substrate, the substrate is a metal material, The transceiver module, the control processing unit, the control switch, and the working power module are soldered to the circuit layer to form a working circuit and cool down by the substrate.

In some embodiments, the substrate is made of aluminum or copper or a heat dissipating material.

In some embodiments, the control switch is implemented as a group selected from the group consisting of a field effect transistor, a thyristor, a thyristor, a power transistor, or a semiconductor device.

In some embodiments, when the control switch is a semiconductor device, in order to facilitate heat dissipation of the semiconductor device, The semiconductor device is brought into contact with the heat sink.

In some embodiments, the control switch is implemented as a group selected from the group consisting of a relay, a contactor, or an electromagnetic mechanical controller.

In some embodiments, the control processing unit includes at least one memory for writing a delay time of the control switch, such that when the control switch is triggered, the operation is automatically advanced according to the stored delay time value. The control switch is opened and closed just at the zero-crossing position to minimize the value of the inrush current flowing through the control switch.

In some embodiments, the ID information of the control terminal is stored in the memory of the control processing unit.

In some embodiments, the control processing unit has a pairing function to form a matching relationship with the control terminal, thereby being controlled by the manipulation command of the control terminal.

In some embodiments, the suppression surge current control device further includes at least one pairing button device disposed on the substrate for implementing a matching relationship between the control processing unit and the control terminal.

In some embodiments, it is controlled by standard wireless communication protocols and various radio frequency, infrared communication protocols selected from WIFI, ZigBee, Z-Wave, Bluetooth, MESH mesh networks or wireless local area networks. The group consisting of.

In some embodiments, the suppression surge current control device includes a housing including a bottom case and a cover case, the cover case being disposed on the bottom case to protect respective electrons disposed on the substrate element.

In some embodiments, the housing further includes a magnetic element disposed on the bottom case, whereby the suppression surge current control device has a magnetic attraction function.

DRAWINGS

FIG. 1 is a waveform diagram of a surge current generated by an existing LED lamp at the moment of energization.

2 is a logic diagram of a suppression surge current control system in accordance with a preferred embodiment of the present invention.

3 is a schematic diagram of the implementation of a controller in accordance with a preferred embodiment of the present invention.

Fig. 4 is a view showing the waveform of a surge current generated at the moment of energization of the application device to which the present invention is applied.

5 and 6 are time-domain waveform diagrams of alternating current.

Figure 7 is a circuit diagram of a control switch implemented as a semiconductor device in accordance with a preferred embodiment of the present invention.

Figure 8 is a logic diagram of a control switch implemented as a semiconductor device in accordance with a preferred embodiment of the present invention.

9 is a logic diagram of a control switch implemented as a relay in accordance with a preferred embodiment of the present invention.

Figure 10 is a perspective perspective view of a surge inrush current control device in accordance with a preferred embodiment of the present invention.

Figure 11 is a schematic view showing the substrate structure of the suppression surge current control device and the abutment of the control switch and the substrate in accordance with a preferred embodiment of the present invention.

Figure 12 is an exploded view of a suppression surge current control device in accordance with a preferred embodiment of the present invention.

detailed description

The following description is presented to disclose the invention to enable those skilled in the art to practice the invention. The preferred embodiments in the following description are by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention as defined in the following description may be applied to other embodiments, modifications, improvements, equivalents, and other embodiments without departing from the spirit and scope of the invention.

It should be understood by those skilled in the art that in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is merely for convenience of description of the present invention and The above description of the invention is not to be construed as a limitation of the invention.

It will be understood that the term "a" is understood to mean "at least one" or "one or more", that is, in one embodiment, the number of one element may be one, and in other embodiments, the element The number can be multiple, and the term "a" cannot be construed as limiting the quantity.

As shown in FIG. 2 to FIG. 7, a suppression surge current control system according to a first preferred embodiment of the present invention suppresses inrush current and has a short circuit protection function, thereby improving the control of suppressing surge current. The life of the system.

In a preferred embodiment of the present invention, as shown in FIG. 2, the suppression surge current control system includes a control terminal 10, a controller 20, and an application device 30. Under the control of the control terminal 10, the controller 20 is responsible for controlling the on and off of the power, so that the application device 30 is in a controlled state. Further, the suppression surge current control system has a function of turning on and off the power of the application device 30 under the control of the control terminal 10. In addition, the control terminal 10 also has a variable adjustment or other function for the application device 30. It is worth mentioning that the controller 20 also uses suppression waves. The surge and short circuit protection technology makes the suppression surge current control system of the present invention safer and more durable when controlling various capacitive loads. It is worth mentioning that the controller 20 can be implemented as a luminaire controller 20A, which can be implemented as a luminaire device 30A. In other words, under the control of the control terminal 10, the lamp controller 20A is responsible for controlling the on and off of the electric power to bring the lamp device 30A into a controlled state. That is, the present invention provides an illumination system comprising the control terminal 10, the lamp controller 20A, and the lamp device 30A, wherein the lamp controller 20A has a capacitive load suppression moment. The effect of a strong surge current generated. It can also be explained that the suppression surge current control system of the present invention is implemented as a lighting system including a control terminal 10, a lamp controller 20A and a lamp device 30A.

In addition, the lamp controller 20A may also have a short circuit protection function when the lamp device 30A is short-circuited. It is worth mentioning that the suppression surge current control system is arranged before the power input end of the lamp device 30A, that is, between the circuits that supply power to the lamp device 30A, and the control of the control terminal 10 at the outside. Next, power is supplied to the lamp unit 30A. It should be understood by those skilled in the art that the present invention can be used for the control of various electrical devices such as LED lamps, computers, televisions, computers, etc., as long as it is used for the lamp device 30A, as long as the power supply of the device is a switching power supply of a capacitive load. Both are applicable to the present invention.

As shown in FIG. 2, the suppression surge current control system is composed of three main parts: the control terminal 10, the controller 20, and the application device 30. The control terminal 10 is configured to provide an external control signal, which may be a wireless control signal or a bus data control signal. The controller 20 is connected to an external power supply circuit or grid power, and its operation is controlled by the control terminal 10, and under the instruction of the control signal of the control terminal 10, the surge current is prevented from entering the application device 30. The application device 30 is controlled to be powered on or off, or to make variable adjustments. Additionally, input to grid power provides power or electrical energy to the controller 20 and the application device 30. The input power is AC 5V-380V AC mains or AC. It can be understood that the suppression surge current control system is also composed of three main parts: the control terminal 10, the lamp controller 20A, and the lamp device 30A. The lamp controller 20A is connected to the grid power, and its operation is controlled by the control terminal 10, and under the instruction of the control signal of the control terminal 10, the lamp device 30A is powered on or off, or is a variable. Adjustment. Further, the present invention has a function of turning on and off the power of the lamp device 30A under the control of the external control terminal 10, and may also have a function of performing dimming and color adjustment on the lamp device 30A. Additionally, input to grid power provides power or electrical energy to the luminaire controller 20A and the luminaire device 30A.

The application device 30 includes at least one capacitive load 31. The capacitive load 31 is implemented as a drive power source. In other words, the application device 30 is a control object of the control terminal 10 and the controller 20, wherein the application device 30 is provided with a drive power source, ie with the capacitive load 31. In addition, the large inrush current in the application device 30 is caused by the driving power of the application device 30 being a switching power supply having capacitive load characteristics. In addition, the present invention can control various types of capacitive loads within the rated load power range. It will be appreciated that the luminaire device 30A includes at least one of the capacitive loads 31. In other words, the luminaire device 30A is a control object of the control terminal 10 and the luminaire controller 20A, wherein the luminaire device 30A is provided with a drive power source, ie with the capacitive load 31. In addition, the large surge current in the lamp unit 30A is caused by the driving power source of the lamp unit 30A being a switching power source having capacitive load characteristics.

As shown in FIG. 3, the controller 20 includes at least one transceiver module 21, at least one control processing unit 22, at least one time domain waveform monitoring unit 23, and at least one control switch 24. The transceiver module 21 is electrically connected to the control processing unit 22. The control processing unit 22 is electrically connected to the control switch 24. The time domain waveform monitoring unit 23 is electrically connected to the control processing unit 22 and the control switch 24. In other words, the lamp controller 20A includes at least one of the transceiver module 21, at least one of the control processing unit 22, at least one of the time domain waveform monitoring units 23, and at least one of the control switches 24.

The transceiver module 21 is a signal inlet and can work in both directions. In other words, the transceiver module 21 can receive and transmit the control terminal 10, and demodulate the control terminal 10 to transmit control data to the control processing unit 22 for processing. In addition, the transceiver module 21 is in an active state after being powered on, so as to receive an instruction from the control terminal 10 at any time.

The control processing unit 22 electrically or radio connects the transceiver module 21 to process the control data sent by the transceiver module 21. The control processing unit 22 electrically or radio connects the time domain waveform monitoring unit 23 for processing waveform data sent by the time domain waveform monitoring unit 23.

In addition, the control terminal 10 demodulates the control data by the transceiver module 21, and then transmits the control data to the control processing unit 22, and the control processing unit 22 outputs a signal to the control switch 24 to make the control. Switch 24 controls the application device 30 to open or close. In other words, the control switch 24 controls the power of the application device 30 under the control of the control processing unit 22. It can be understood that the control switch 24 controls the power of the lamp device 30A under the control of the control processing unit 22.

The control switch 24 can be implemented as an electronic switch of a semiconductor device, such as a field effect transistor, a thyristor, Thyristor or the like; or can be implemented as an electromagnetic mechanical controller such as a relay.

It is worth mentioning that, as shown in FIG. 1 , when the lamp controller 20A controls a 100 W of the lamp device 30A, it is subjected to a large current impact, and it can be seen that the lamp device 30A is generated at the instant of energization. Great surge current. However, the same luminaire device 30A is tested by the snubber current control system of the present invention. As shown in FIG. 4, the luminaire device 30A of 100 W is connected to 220 VAC power, and the present invention is used. Break test, a total of 10 power-on and power-off, of which the maximum current peak value is 4.7A, it can be seen that the suppression of surge current effect is very significant. Therefore, after the invention is used, the lamp device 30A for controlling 100 W can reliably control the lamp device 30A only with a small power device, and has the advantages of safety, durability, and small volume, and eliminates frequent replacement of relays or electrons. The trouble of the switch.

As shown in Figure 5 or 6, it is a time domain waveform with different AC peaks and zero crossings. The time domain waveform monitoring unit 23 is configured to monitor whether the time domain waveform of the alternating current is at a position of a zero crossing point, and report to the control processing unit 22, and under the control of the control processing unit 22, enable the control switch 24 Each action is at a zero crossing position so that the current surge in the circuit is minimized when the application device 30 is turned on or off. In other words, the control switch 24 is to be turned on or off at the peak, and the control switch 24 should be turned on or off at the zero crossing of the alternating current, at which time the surge current is minimized. It can be understood that the control processing unit 22 obtains the time when the time domain waveform of the alternating current is at the position of the zero crossing point by the time domain waveform monitoring unit 23, and obtains the above by the control processing unit 22 through the transceiver module 21. After controlling the message of the terminal 10, the control switch 24 is controlled to start or shut down the application device 30 at a time when the time domain waveform of the alternating current is at the position of the zero crossing point, so that the application device 30 is not affected by the surge current. . In other words, the time domain waveform monitoring unit 23 monitors whether the time domain waveform of the alternating current is at a position of a zero crossing point, while the control processing unit 22 reports, and under the control of the control processing unit 22, causes the control switch 24 Each action is at a zero crossing position so that the current surge in the circuit when the luminaire device 30A is activated or deactivated is minimized so that the luminaire device 30A is unaffected by the inrush current.

In addition, the controller 20 includes at least one current detecting unit 25 electrically connected to the control processing unit 22 and the control switch 24 for monitoring the magnitude and variation of the load current, and to the control processing unit. 22 provides current data, and when the current is too large, the control processing unit 22 immediately triggers the control switch 24 to be turned off to ensure circuit safety. Further, the current detecting unit 25 directly triggers the detected large current signal to directly turn off the control switch 24, so that when the current is too large, The control switch 24 is turned off more quickly. The invention does not limit the method of detecting current. In other words, the luminaire controller 20A includes at least one current sensing unit 25 to avoid shorting the luminaire device 30A.

Additionally, the controller 20 includes at least one operating power module 26 electrically coupled to the transceiver module 21, the control processing unit 22, and the control switch 24. Further, the working power module 26 is configured to convert the input AC high voltage power into a low voltage DC power source to provide working power for each module. In other words, the working power module 26 converts the alternating current of the high voltage AC5V-380V into a low voltage direct current of 3.3V to supply power to the transceiver module 21 and the control processing unit 22. In other words, the luminaire controller 20A includes at least one operating power module 26.

As shown in Fig. 5 or Fig. 6, the voltage and current waveforms of the sinusoidal alternating current are alternately changed, and the amplitude of the waveform at the zero-crossing position is the smallest, that is, at the zero-crossing point, the current is small and the impact is minimal. If the control switch 24 is controlled to turn on the power of the application device 30 at the zero crossing point, the current surge experienced by the control switch 24 is very small. Therefore, in order to achieve this, the present invention accurately detects the time position of the AC zero crossing by the control processing unit 22. In addition, the control processing unit 22 accurately triggers the control switch 24 to open or close at the AC zero crossing. Thus, the capacitive load 31 has minimal current impact on the controller 20. The process of suppressing inrush current of the present invention is based on this principle. In other words, the control switch 24 is controlled to turn on the power of the lamp unit 30A at the zero crossing point, and the current surge to the lamp controller 20A is minimized.

As shown in FIG. 7, the current detecting unit 25 includes at least one mutual inductance coil L1, at least one bridge stack UR, and at least one or two resistors R5 and R6. In addition, the current detecting unit 25 of the power main circuit may be constituted by the mutual inductance coil L1, the bridge stack UR, the two resistors R5 and R6, and the control processing unit 22, wherein the control processing unit 22 is responsible for Monitor the amount of current when the load is working. It should be understood by those skilled in the art that the composition classification of each electronic component or electronic module in the present invention is not absolute, but can be adjusted according to actual applications and functions, and therefore, this is not a limitation of the present invention.

In Fig. 7, the magnitude of the alternating current is detected by the mutual inductance coil L1, and the detected value is transmitted to the control processing unit 22 for processing. Of course, in some embodiments, the process of processing the current value by the control processing unit 22 may be omitted, and the detected high current signal may be directly triggered by the current detecting unit 25 to be turned off. When the current is too large, Faster closing of the switch for faster response. The invention does not limit the method of detecting current. In other words, the current detecting unit 25 can be used for a short circuit protection function.

The time domain waveform monitoring unit 23 includes at least one or three resistors R1-R3 and at least one filter capacitor C1 to communicate the AC zero-crossing point information to the control processing unit 22. In other words, the three resistors R1-R3 and the filter capacitor C1 constitute the time domain waveform monitoring unit 23 to monitor the time domain waveform of the alternating current and transmit the zero crossing information to the control processing unit 22.

The control switch 24 includes at least one or two MOS transistors T1-T2, at least one photocoupler OC, and at least one resistor R4. Wherein the photocoupler OC can output a current to drive the MOS transistor to conduct. It is worth mentioning that the optocoupler OC works in the normal state: the resistance between the two poles in the normal state is extremely large, so that it is equivalent to an open circuit (corresponding to a photoresistor), and the photon is emitted when the left end of the two poles is energized, so that the right end is between the two poles. The resistance is reduced and turned on, and the response speed is extremely fast. The MOS transistors T1-T2 are bidirectional switches composed of semiconductor devices, so that the controller 20 of the present invention can be applied in an AC circuit. In addition, if the power circuit is direct current, only one semiconductor switching device can be used. In addition, the control switch 24 may be composed of a semiconductor device such as a field effect transistor, a thyristor, a thyristor, or a power transistor.

The working power module 26 is configured to convert alternating current power and output a direct current low voltage to supply power to each part of the circuit. Further, the working power module 26 can be implemented as a switch working power module composed of the LNK603 model. It can be understood that the grid power of the controller 20 connected to the high voltage AC5V-380V is converted into a low voltage direct current of 3.3V by the LNK603 model to supply power to the transceiver module 21 and the control processing unit 22. It should be understood by those skilled in the art that the LNK603 model is an exemplary model for illustrative purposes, which is not a limitation of the present invention.

The transceiver module 21 can be implemented as a high frequency wireless transceiver data module composed of a CC115L model. It should be understood by those skilled in the art that the CC115L model is an exemplary model for illustrative purposes, which is not a limitation of the present invention. In addition, the transceiver module 21 is in an active state after being powered on, so as to receive an instruction from the control terminal 10 at any time.

The control processing unit 22 includes at least one or three input/output ports I/O1, I/O2, I/O3 connected to the control switch 24, the time domain waveform monitoring unit 23, and the current detecting unit. 25. It is worth mentioning that when the transceiver module 21 does not receive the instruction sent by the control terminal 10, the control processing unit 22 is in a sleep state, wherein the first input/output 埠I/O 1 output is Low level, so that the photocoupler OC is not turned on, the control switch 24 is in an off state, therefore, the entire controller 20 is in a low power standby state, waiting for the command signal of the control terminal 10 to arrive. . In addition, when the control terminal 10 sends the command data, the transceiver module 21 (CC115L) demodulates the data after receiving the command, and transmits the data to the control processing unit 22 through the SPI serial port. The control processing unit 22 compares the received data with data previously stored in the memory of the control processing unit 22, and if the data is the same, is considered to be matching or legal data.

The control processing unit 22 compares the data, and if the data matches, starts the current zero-crossing detection program of the alternating current, and the second input/output 埠I/O2 of the control processing unit 22 detects the change according to the alternating current time domain waveform. The time position of the zero-crossing point of the alternating current time domain waveform, when the current time domain waveform of the alternating current is just at the zero position, the first input/output 埠I/O1 of the control processing unit 22 outputs a high level to trigger The optocoupler OC operates and conducts the control switch 24 to provide current to the load application device 30. Therefore, under the control of the control processing unit 22, the control switch 24 is always turned on or off in a cycle of the alternating current, at a time when the time domain waveform of the current is at the zero crossing point, so that the switch is subjected to the minimum current. Impact, thereby achieving the purpose of suppressing the huge surge current generated by the capacitive load at startup.

In addition, the control processing unit 22 can be implemented as a logic controller (MCU) or a central processing unit (CPU), as long as it can achieve the purpose of controlling the present invention or the embodiment, so whether it is a logic controller (MCU) Or a central processing unit (CPU) is not a limitation of the present invention. In addition, the grid power of the controller 20 connected to the high voltage AC5V-380V is converted into a low voltage direct current of 3.3V by the LNK603 model to supply power to the CC115L model and the logic controller (MCU).

In addition, in some embodiments, in order to further suppress the surge current surge of the capacitive load, the control switch 24 may be divided into multiple times at the zero crossings of the plurality of cycles of the alternating current under the control of the control processing unit 22. Turning on, that is, the control processing unit 22 causes the control switch 24 to be turned on once every alternating current zero-crossing with a pulse width signal (PWM), and is gradually turned on completely after a plurality of waveform periods. The surge current thus passed through the control switch 24 will be completely suppressed. For example, a waveform period of 50 Hz AC is 20 ms, assuming that the switch is turned on once at the zero crossings of the plurality of cycles, and the control switch 24 is turned on several times with a duty cycle gradient of 10%, 50%, and 100%. The control switch 24 is gradually fully opened in a period of 120 ms to form a slowly open electronic control switch. Thus, when power is supplied to the capacitive load, the inrush current is lost.

It should be understood by those skilled in the art that each electronic device shown in FIG. 7 is only an exemplary structure of a working module. In actual technical implementation, some modular components may be integrated, for example, the control The processing unit 22 is integrated with the transceiver module 21. It can be understood that the device models of the circuit modules are also replaceable and combinable, or any combination or packaged into one or more actual components, as long as the method of the present invention can be used to achieve accurate suppression of inrush current. this invention Within the scope of protection.

It is worth mentioning that the present invention exemplifies a logic flow and system for suppressing transient inrush current by the controller 20 controlled by the control terminal 10, but in some embodiments, the controller 20 does not receive wireless signals. To control the application device 30, the signal input end of the controller 20 can also be connected to the bus control system, and the control command can be transmitted to the controller 20 through the bus control system in a wired manner to control the Application device 30. For example, the invention is connected to a KNX bus system. At this time, the control terminal 10 is connected to the control processing unit 22 of the present invention in a wired manner, without using the transceiver module 21, and the effect of surge suppression can be achieved. Therefore, the present invention is not limited to the type and manner of receiving the signal. As long as the technical solution disclosed by the present invention is applied, the method of using the zero-crossing detection described in the present invention to implement the suppression start current is a scope of protection of the present invention. . In other words, the lamp controller 20A does not only receive the wireless signal to control the lamp device 30A, but also can input the signal input end of the lamp controller 20A into the bus control system, and pass the control command through the wire. A bus control system transmits to the luminaire controller 20A to control the luminaire device 30A.

As shown in FIG. 8, according to the embodiment, the present invention further provides a method for suppressing surge current control, which includes the following steps:

(A) the transceiver module 21 of the controller 20 receives the control signal of the control terminal 10, the control signal is sent to the control processing unit 22;

(B) The control processing unit 22 performs the zero-crossing detection on the alternating current signal sent from the time domain waveform monitoring unit 23;

(C) after receiving the control signal, the control processing unit 22 detects the alternating current signal and outputs a signal to the control switch when the alternating current zero-crossing point;

(D) The control switch 24 is controlled to open and turn on the capacitive load of the application device.

The method for suppressing surge current control further includes the following steps:

(E) The current detecting unit 25 of the controller 20 detects the current value in the power supply circuit after being energized.

It is worth mentioning that the controller 20 can be implemented as a luminaire controller 20A, which can be implemented as a luminaire device 30A.

According to the step (A), the power terminal of the controller 20 is connected to the AC 5V-380V grid power, and is converted into a low voltage DC power by the working power module 26 to supply power to the transceiver module 21 and the control processing unit 22.

According to the step (A), the transceiver module 21 is implemented as a high frequency wireless receiver composed of the CC115L model. Send data module.

According to the step (A), the working power module 26 can be implemented as a switch type working power module composed of the LNK603 model.

According to the step (A), the transceiver module 21 of the controller 20 is in a standby working state after being powered on, so as to receive an external command from the control terminal 10 at any time.

According to the step (A), when the transceiver module 21 does not receive the signal instruction, the control processing unit 22 is in a sleep state, the first input/output 埠I/O 1 output is at a low level, and the control The photocoupler OC of the switch 24 is not turned on, and the control switch 24 is in an off state, so that the controller 20 is in a low power standby state, waiting for the control signal of the control terminal 10 to come.

According to the step (A), after receiving the instruction sent by the control terminal 10, the transceiver module 21 demodulates the data, and transmits the data to the control processing unit 22 through the SPI serial port for processing.

According to the step (B), the control processing unit 22 compares the received data with data stored in advance in the memory of the control processing unit 22, and if the data is the same, it is regarded as matching or legal data.

According to the step (B), the second input/output 埠I/O 2 of the control processing unit 22 detects the time position of the zero-crossing point of the alternating current time domain waveform according to the change of the alternating current time domain waveform, when the current time domain waveform of the alternating current is just at At the zero position, the first input/output 埠I/O 1 of the control processing unit 22 will output a high level to trigger the operation of the photocoupler OC, and the control switch 24 is turned on to the application device. 30 provides current.

According to the step (B), the time domain waveform monitoring unit 23 is constituted by at least one or three resistors R1 - R3 and a filter capacitor C1.

According to the step (C), the control switch 24 is controlled by the control processing unit 22 to turn on or off in a period of the alternating current in a period of the alternating current, at a time when the time domain waveform of the current is at a zero crossing point. The switch 24 is subjected to minimal current surges, thereby suppressing the large inrush current generated by the capacitive load during startup.

According to the step (C), under the control of the control processing unit 22, the control switch 24 is gradually turned on a plurality of times at a zero crossing point of a plurality of cycles of the alternating current, that is, the control processing unit 22 uses a pulse width signal ( PWM) causes the control switch 24 to be turned on once every time the alternating current crosses zero, and is gradually turned on completely after a plurality of waveform cycles.

According to the step (D), the control switch 24 can be implemented by a field effect transistor, a thyristor, a thyristor, and a work A semiconductor device such as a triode.

According to the step (D), the control switch 24 is constituted by at least one or two MOS transistors T1-T2, at least one photocoupler OC, and at least one resistor R4.

According to the step (E), the current detecting unit 25 directly triggers the detected large current signal to turn off the control switch 24, and when the current is too large, the control switch 24 can be turned off more quickly.

2-7, a suppression surge current control system according to a second preferred embodiment of the present invention, wherein the control switch 24 of the present embodiment is implemented as a mechanical relay.

The suppression surge current control system includes a control terminal 10, a controller 20, and an application device 30. Under the control of the control terminal 10, the controller 20 is responsible for controlling the on and off of the power, so that the application device 30 is in a controlled state. It is worth mentioning that the controller 20 can be implemented as a luminaire controller 20A, which can be implemented as a luminaire device 30A. In other words, under the control of the control terminal 10, the lamp controller 20A is responsible for controlling the on and off of the electric power to bring the lamp device 30A into a controlled state. That is, the present invention provides an illumination system comprising the control terminal 10, the lamp controller 20A, and the lamp device 30A, wherein the lamp controller 20A has a capacitive load suppression moment. The effect of a strong surge current generated. In addition, the lamp controller 20A may also have a short circuit protection function when the lamp device 30A is short-circuited. It is worth mentioning that the suppression surge current control system is arranged before the power input end of the lamp device 30A, that is, between the circuits that supply power to the lamp device 30A, and the control of the control terminal 10 at the outside. The lamp unit 30A is powered by the control of the signal.

The controller 20 includes at least one transceiver module 21, at least one control processing unit 22, at least one time domain waveform monitoring unit 23, and at least one control switch 24. The transceiver module 21 is electrically connected to the control processing unit 22. The control processing unit 22 is electrically connected to the control switch 24. The time domain waveform monitoring unit 23 is electrically connected to the control processing unit 22 and the control switch 24. In addition, the controller 20 includes at least one current detecting unit 25 electrically connected to the control processing unit 22 and the control switch 24 for monitoring the magnitude and variation of the load current, and to the control processing unit. 22 provides current data, and when the current is too large, the control processing unit 22 immediately triggers the control switch 24 to be turned off to ensure circuit safety. Additionally, the controller 20 includes at least one operating power module 26 electrically coupled to the transceiver module 21, the control processing unit 22, and the control switch 24. Further, the working power module 26 is configured to convert the input AC high voltage power into a low voltage DC power source to provide working power for each module.

In particular, the control switch 24 is embodied as an electromagnetic mechanical controller, such as a relay, which is electrically connected to the control switch 24 for measuring the delay time of the control switch 24. In other words, the control processing unit 22 measures the contact pull-in delay time of the relay. Further, the control processing unit 22 writes the measured delay time of the control switch 24 to the memory of the control processing unit 22 for calling. In addition, the control processing unit 22 can also turn the control switch 24 on or off according to the delay time data of the control switch 24. In other words, the control processing unit 22 can also turn the relay on or off in advance according to the delay time data of the relay.

It is worth mentioning that when the control switch 24 is a relay, there is at least one transistor driving element to facilitate the control processing unit driving. That is to say, if the switch of the relay is employed, since the power consumption is larger than that of the transistor, the control processing unit 22 may not be directly driven, and therefore it is required to be driven by a triode. Further, the control processing unit 22 gives a signal transistor → a transistor amplification signal → a drive relay.

Further, the difference between the second preferred embodiment and the first preferred embodiment is that the first preferred embodiment employs a semiconductor device as an electronic switch, so that there is no problem of delay. However, when the second preferred embodiment uses the relay as the control switch 24, there will be an inconsistent delay phenomenon. Therefore, each controller 20 must accurately and automatically measure the delay time of the relay when the first power is turned on, and write the automatically measured delay time into the memory of the controller 20, such that When the control processing unit 22 causes the relay to be closed each time thereafter, the delay time value of the relay among the memories is referred to, and the command for early engagement is given according to the delay time value. In other words, each of the lamp controllers 20A must accurately and automatically measure the delay time of the relays when the first power is turned on, and write the automatically measured delay time to the memory of the lamp controller 20A. When the control processing unit 22 thus causes the relay to be closed each time thereafter, as long as the delay time value of the relay among the memories is referred to, the command for early sucking is given according to the delay time value. Just fine.

In the suppression surge current control system, a relay is used as the control switch 24. The biggest problem is that the delay time of each of the relays is different, so that it is difficult to obtain a standard and uniform control window. time. When the control processing unit 22 obtains the zero-crossing data ready to open the relay, due to the influence of the hysteresis of the relay, the time of each of the relays may have a difference of 1-10 milliseconds, which is very inconsistent, and some relays are delayed. At 1ms, some delays are 5ms, and some delays are 8Ms. That is to say, in the same batch of said relays, each of said relay pull-in times is inconsistent. Said Inconsistent pull-in time of the electrical appliance may cause the relay to not accurately pick up at the zero-crossing position of the alternating current, thereby causing the surge current to be suppressed. For example, when the delay time of the relay is 5ms past the zero point, the waveform of the alternating current is at a peak, and the relay pull-in will cause a huge current surge, and the surge current suppression effect completely fails. Therefore, unless the delay time of each of the relays is accurately tested, the action is started in advance according to the measured precise delay time of each relay, so as to accurately pick up the zero-crossing point of the alternating current.

The control processing unit 22 of the present invention electrically connects the relay for measuring the delay time of the relay. For example, the present invention automatically detects that the delay time of one of the relays is 4 ms, then the control processing unit 22 sends a signal to the relay for 4 ms before the waveform of the alternating current reaches a zero crossing point, so that it can be just The relay is accurately attracted when it is at the zero crossing point, thereby achieving the best, stable and reliable effect of suppressing the surge current.

Additionally, the control processing unit 22 includes at least one of the memories such that the control processing unit 22 writes the measured delay time of the relay to the memory of the control processing unit 22 for recall.

It is worth mentioning that the voltage and current waveforms of sinusoidal alternating current are constantly changing. The amplitude of the waveform at the zero-crossing position is the smallest, that is, at the zero-crossing point, the current is small and the impact is minimal. If the control switch 24 is controlled to turn on the power of the application device 30 at the zero crossing point, the current surge experienced by the control switch 24 is very small. Therefore, in order to achieve this, the present invention accurately detects the time position of the AC zero crossing by the control processing unit 22. In addition, the control processing unit 22 accurately triggers the control switch 24 to open or close at the AC zero crossing. Thus, the capacitive load 31 has minimal current impact on the controller 20. The process of suppressing inrush current of the present invention is based on this principle.

However, in order to obtain a good inrush current suppression effect by using this principle, it is necessary to quickly control the control switch 24, preferably without delay, if the relay is used as the control switch 24, according to the prior art The inhibition effect will be less stable, it is difficult to achieve the best results, and even no effect. The reason is that the relay is an electromagnetic device having a hysteresis phenomenon and a slow reaction speed. Due to the influence of the coil winding process of the relay, the inductance of the coils is inconsistent, resulting in different hysteresis times of each relay, with a difference of about 1-10 ms. Therefore, the delay characteristic of the relay is inconsistent, and the half-wave of the alternating current is 10 ms. If the delay time of the relay is not accurately controlled, accurate operation time will not be obtained, and the relay is difficult to accurately absorb at the zero-crossing point. Combined or released. Thus, the control switch 24 that uses the relay to make a zero crossing requires some auxiliary steps to achieve, otherwise the effect is not satisfactory.

As shown in FIG. 9, according to the embodiment, the present invention further provides a method for suppressing surge current control, which includes the following steps:

According to the step (A), the transceiver module 21 can be implemented as a high frequency wireless transceiver data module composed of the CC115L model.

According to the step (B), the control processing unit 22 compares the received data with data stored in advance in the memory of the control processing unit 22, and if the data is the same, it is regarded as a match or Legal data.

According to step (D), the control switch 24 is implemented as an electromagnetic mechanical controller, such as a relay.

According to step (E), the time at which the relay contacts are actually engaged is transmitted to the control processing unit 22.

According to the step (E), the control processing unit 22 compares the time when the signal is sent and the actual pull-in time of the contact of the relay, and obtains the actual delay time of the relay.

According to step (E), the control processing unit 22 writes the delay time to the memory in preparation for the control processing unit 22 to call at any time.

According to the step (E), the control processing unit 22 issues a closing command in advance according to the delay time of the relay, so that the relay accurately picks up and turns on the power at the alternating current zero-crossing point, thereby avoiding a large surge-free current generation.

An important measure in this embodiment is that the relay is not naturally energized as it is conventionally used, but is instead based on the relay actually measured by the control unit 22. After the delay time, the signal is sent in advance to make the relay accurately pick up at the zero crossing. Therefore, the present invention solves the problem of inconsistent pick-up time of any conventional relay contact. The invention also measures the data of the contact pull-in delay time of any of the relays and writes the data into the memory, and the controller 20 performs power supply and power-off every time under the control of the control terminal 10, The control processing unit 22 calls the delay time data of the forbidden relay, and according to the delay time, the control processing unit 22 signals the trigger to accurately pick up and accurately release the relay.

It is worth mentioning that the present invention exemplifies a logic flow and system for suppressing transient inrush current by the controller 20 controlled by the control terminal 10, but in some embodiments, the controller 20 does not receive wireless signals. To control the application device 30, the signal input end of the controller 20 can also be connected to the bus control system, and the control command can be transmitted to the controller 20 through the bus control system in a wired manner to control the Application device 30. For example, the invention is connected to a KNX bus system. At this time, the control terminal 10 is connected to the control processing unit 22 of the present invention in a wired manner, without using the transceiver module 21, and the effect of surge suppression can be achieved. Therefore, the present invention is not limited to the type and manner of receiving the signal. As long as the technical solution disclosed by the present invention is applied, the method of using the zero-crossing detection described in the present invention to implement the suppression start current is a scope of protection of the present invention. .

3 and 10-12, a suppression surge current control device 200 according to a third preferred embodiment of the present invention, wherein the power is disposed between the power source and the power input terminal of the application device, and the power passes through the After the inrush current control device 200 is suppressed, power is supplied to the application device 30 under the control of the control terminal 10. Further, the application device 30 can be implemented as a luminaire device 30A. It can be understood that the suppression surge current control device 20A is disposed between the power and the power input end of the luminaire device 30A to be at the control signal. The control of the lamp device 30A performs the function of switching, dimming, and coloring, and when the power is output to the lamp device 30A, the inrush current does not cause damage to the lamp device 30A. In addition, it is worth mentioning that the suppression surge current control device 20A can be applied to any type of luminaire or LED luminaire.

The suppression surge current control device 200 includes a substrate 201, a housing 202, a transceiver module 21, a control processing unit 22, a control switch 24, and a working power module 26. The transceiver module 21 electrically transmits the control terminal 10 to the control processing unit 22, and then the control processing unit 22 controls the control switch 24, and always causes the alternating current to be at a zero crossing point. The control switch 24 is turned on or off to suppress the surge current. The control processing unit 22 electrically or radio connects the transceiver module 21 to process the control data sent by the transceiver module 21. The work The power module 26 is electrically connected to each module and provides the required operating voltage and current for each module. Further, the working power module 26 converts the alternating current of the high voltage AC5V-380V into a low voltage direct current of 3.3V to supply power to the transceiver module 21 and the control processing unit 22. In addition, the suppression surge current control device 200 further includes an input terminal 203 connected to electric power or alternating current or direct current, and an output terminal 204 connected to the lamp device 30A. After the electric energy is input through the input terminal 203, the load power is outputted to the lamp device 30A through the output terminal 204. The output 204 outputs continuous power or the output is an adjustable pulse width signal (PWM signal). In addition, the output terminal 204 can be used to connect other loads, such as LED luminaires, or other capacitive, inductive, resistive loads, in addition to the luminaire device 30A.

The transceiver module 21, the control processing unit 22, the control switch 24, the working power module 26, the input terminal 203, and the output terminal 204 are disposed on the substrate 201 and are electrically connected. The substrate 201, the transceiver module 21, the control processing unit 22, the control switch 24, the working power module 26, the input terminal 203, and the output terminal 204 are housed in the housing 202. .

In addition, the transceiver module 21 is a signal inlet and can work in both directions. In other words, the transceiver module 21 can receive and transmit the control terminal 10, and demodulate the control terminal 10 to transmit control data to the control processing unit 22 for processing. In addition, the transceiver module 21 can also feed back the status information of the present invention to the control terminal 10. In addition, the transceiver module 21 is in an active state after being powered on, so as to receive an instruction from the control terminal 10 at any time. Further, the control terminal 10 demodulates the control data by the transceiver module 21, and then transmits the control data to the control processing unit 22, and the control processing unit 22 outputs a signal to the control switch 24 to make the The control switch 24 controls the application device 30 to open or close. In addition, the control switch 24 can be implemented as an electronic switch of a semiconductor device, such as a field effect transistor, a thyristor, a thyristor, etc.; or can be implemented as an electromagnetic mechanical controller, such as a relay, a contactor.

Additionally, the suppression surge current control device 200 includes at least one time domain waveform monitoring unit 23 electrically coupled to the control processing unit 22 for monitoring time domain waveform data. The time domain waveform monitoring unit 23 is configured to monitor whether the time domain waveform of the alternating current is at a position of a zero crossing point, and report to the control processing unit 22, and under the control of the control processing unit 22, enable the control switch 24 Each action is at a zero crossing position so that the current surge in the circuit is minimized when the application device 30 is turned on or off.

In addition, the controller 20 includes at least one current detecting unit 25 electrically connected to the control processing The unit 22 and the control switch 24 are configured to monitor the magnitude and variation of the load current and provide current data to the control processing unit 22, and the control processing unit 22 immediately triggers the control switch when the current is too large. 24 closed to ensure circuit safety. It is worth mentioning that when the load current of the output terminal 204 increases, the current detecting unit 25 triggers the control processing unit 22 to turn off the control switch 24, or the current detecting unit 252 can trigger the control switch. 24 directly closed. The current detecting unit 25 triggers the control switch 24 to be directly turned off faster than triggering the control processing unit 22 to turn off the control switch 24.

It is worth mentioning that when the control switch 24 is implemented as an electromagnetic mechanical controller, such as a relay, the time of each of the relays may vary by 1-10 milliseconds due to the influence of the hysteresis of the relay. That is to say, in the same batch of said relays, each of said relay pull-in times is inconsistent. Therefore, the control processing unit 22 includes at least one memory. Thus, the control processing unit 22 can write the measured delay time of the control switch 24 to the memory of the control processing unit 22 for calling. In particular, each time the control switch 24 is triggered to act, the operation is automatically advanced according to the stored delay time value, so that the control switch 24 is opened and closed just at the zero-crossing position, so that the inrush current flowing through the control switch 24 The value is the smallest. In addition, the ID information of the control terminal 10 is stored in the memory of the control processing unit 22. The control processing unit 22 has a pairing function, and can form a matching relationship with the control terminal 10, thereby being controlled by the manipulation command of the control terminal 10. Accordingly, the suppression surge current control device 200 further includes at least one pairing button device 205 for implementing a matching relationship with the control processing unit 22 and the control terminal 10.

The substrate 201 includes a circuit layer 2011, an insulating layer 2012, and a substrate 2013, wherein the insulating layer 2012 is located between the circuit layer 2011 and the substrate 2013. In other words, the circuit layer 2011, the insulating layer 2012 and the substrate 2013 are laminated into a sandwich structure. The electronic components such as the transceiver module 21, the control processing unit 22, the control switch 24, and the working power module 26 are soldered to the circuit layer 2011. The substrate 2013 is made of a metal material, such as aluminum and copper, so that when the electronic components are soldered to the circuit layer 2011, both the operable circuit and the substrate 2013 can be used to dissipate heat, thereby reducing the high temperature during the switching operation. The complicated process and cost of installing the heat sink are eliminated, and the circuit work is more stable and reliable. If there is no metal heat dissipation, the semiconductor switch is easily damaged. In addition, the control switch 24 is soldered to the circuit layer 2011 of the substrate 201, and may also be screwed to the circuit layer 2011 of the substrate 201 while using the substrate 2013 of the substrate 201 to dissipate heat. . In particular, the control switch 24 may also be abutted and fixed on a metal plate, and utilize the metal The board heats the control switch 24.

In addition, the suppression surge current control device 200 is configured to receive the control terminal 10 to supply power to the application device 30. The control terminal 10 is a wirelessly transmitted radio frequency signal, an optical signal, and a wired transmission bus signal or level control signal. Further, the present invention can be controlled by various standard wireless communication protocols, such as WIFI, ZigBee, Z-Wave, Bluetooth, and a wireless communication protocol network system (MESH mesh network or wireless local area network) control, and by the cloud And control of the mobile terminal.

The housing 202 includes a bottom case 2021 and a cover case 2022. The electronic components are disposed on the substrate 201 and placed on the bottom case 2021. That is, the bottom case 2021 is for supporting each electronic component including the substrate 201. The cover case 2022 is disposed on the bottom case 2021 to protect each electronic component including the substrate 201. In addition, the housing 202 may further include a magnetic component 2023 disposed on the bottom case 2021, so that the suppression surge current control device 200 has a magnetic attraction function, and can be conveniently adsorbed in various application devices. On the 30, like the luminaire device 30A, to facilitate the quick installation arrangement, the complicated steps of locking the screws are omitted.

In addition, when the control switch 24 of the embodiment adopts a semiconductor device, wherein the circuit principle can be as shown in FIG. 7, the current detecting unit 25 includes at least one mutual inductance coil L1, at least one bridge stack UR, at least one or two resistors. R5, R6. In addition, the current detecting unit 25 of the power main circuit may be constituted by the mutual inductance coil L1, the bridge stack UR, the two resistors R5 and R6, and the control processing unit 22, wherein the control processing unit 22 is responsible for Monitor the amount of current when the load is working. It should be understood by those skilled in the art that the composition classification of each electronic component or electronic module in the present invention is not absolute, but can be adjusted according to actual applications and functions, and therefore, this is not a limitation of the present invention.

The control processing unit 22 compares the data, and if the data matches, starts to start the current zero-crossing detection program of the alternating current, and the second input/output 埠I/O2 of the control processing unit 22 is based on the intersection. The change of the galvanic time domain waveform detects the time position of the zero crossing of the alternating current time domain waveform. When the current time domain waveform of the alternating current is just at the zero position, the first input/output 埠I/O1 of the control processing unit 22 is A high level is output to trigger operation of the optocoupler OC and cause the control switch 24 to conduct current to the load application device 30. Therefore, under the control of the control processing unit 22, the control switch 24 is always turned on or off in a cycle of the alternating current, at a time when the time domain waveform of the current is at the zero crossing point, so that the switch is subjected to the minimum current. Impact, thereby achieving the purpose of suppressing the huge surge current generated by the capacitive load at startup.

It should be understood by those skilled in the art that each electronic device shown in FIG. 7 is only an exemplary structure of a working module. In actual technical implementation, some modular components may be integrated, for example, the control The processing unit 22 is integrated with the transceiver module 21. It can be understood that the device models of the circuit modules are also replaceable and combinable, or any combination or packaged into one or more actual components, as long as the method of the present invention can be used to achieve accurate suppression of inrush current. It is within the scope of the invention.

Those skilled in the art should understand that the embodiments of the present invention described in the above description and the accompanying drawings are only by way of illustration and not limitation. The object of the invention has been achieved completely and efficiently. The present invention has been shown and described with respect to the embodiments of the present invention, and the embodiments of the present invention may be modified or modified without departing from the principles.

Claims

A control system for suppressing inrush current is characterized by comprising:

At least one control terminal;

At least one application device;

At least one controller connected to the application device and an external power supply circuit, such that when receiving the control signal of the control terminal, the controller avoids generating a surge current in the control system for suppressing the surge current and controlling the The application device is activated.
A control system for suppressing surge current according to claim 1, wherein said controller includes at least one control processing unit, and a control switch electrically connected to said control processing unit, thereby controlling said control by said control processing unit The switch performs on/off switching when the time domain waveform of the voltage or current in the external power supply circuit is at the zero position.
A control system for suppressing surge current according to claim 2, wherein said controller includes at least one time domain waveform monitoring unit for monitoring a time domain waveform of a voltage or current in said external power supply circuit, and reporting said control Processing unit.
The control system for suppressing surge current according to claim 3, wherein said controller comprises at least one operating power supply module for converting a high voltage power input from said external power supply circuit into a low voltage direct current power supply, thereby providing operating power for each module. .
A control system for suppressing surge current according to claim 2-3, wherein said controller includes at least one transceiver module electrically connected to said control processing unit to individually match and process said received control signal, A corresponding signal is sent to the control processing unit.
A control system for suppressing surge current according to claim 5, wherein said controller includes at least one current detecting unit electrically connected to said control processing unit for monitoring the magnitude and variation of the load current for current When the temperature is too large, the control processing unit is triggered to control the disconnection of the control switch to ensure circuit safety.
A control system for suppressing surge current according to claim 5, wherein said control signal is implemented as a wireless control signal or a bus data control signal.
The control system for suppressing surge current according to claim 1, wherein said control terminal is a passive wireless switch or a remote controller.
A control system for suppressing surge current according to any one of claims 2-4, 6-7, wherein said application device is a powered device having a capacitive load.
A control system for suppressing surge current according to claim 9, wherein said controller is implemented as a control device having a capacitive load.
A control system for suppressing surge current according to claim 10, wherein said control-off relationship is selected from the group of electronic switches of semiconductor devices consisting of field effect transistors, thyristors, and thyristors.
A control system for suppressing surge current according to claim 10, wherein said control open relationship is selected from the group consisting of a relay of electromagnetic switches.
A control system for suppressing surge current according to claim 2, wherein said control processing unit includes at least one memory for storing a control program for causing said control switch to automatically operate under the control of said control program.
A control system for suppressing surge current according to claim 12, wherein said control processing unit includes at least one memory for writing a delay time of said control switch, such that said control is triggered by said control processor When the switch is actuated, the operation is automatically advanced or delayed according to the pre-stored delay time value, so that the control switch opens and closes just at the zero-crossing position, so that the value of the inrush current flowing through the control switch is minimized.
A control system for suppressing surge current according to claim 2, wherein said control switch outputs a level signal by said control processing unit when a time domain waveform of a voltage or current is in a zero-crossing position in said external power supply circuit Or controlled by a pulse width (PWM) signal.
A control system for suppressing surge current according to claim 3, wherein said time domain waveform monitoring unit comprises a transmission device connected to an alternating current, which is implemented as one or more resistors and capacitors, thereby The external AC zero-crossing information is transmitted to the control processing unit.
The control system for suppressing surge current according to claim 6, wherein said current detecting unit comprises a connected mutual inductance coil, a bridge stack, and two resistors, thereby transmitting the magnitude of the monitored current to said control processing unit.
A control system for suppressing surge current according to claim 11, wherein said control switch comprises at least one electronic switch and a photocoupler connected to each other.
The control system for suppressing surge current according to claim 1, wherein said controller is installed inside or outside said application device, and is electrically connected to said application device and said external power supply circuit.
A method for suppressing surge current control, comprising the steps of:

(A) the transceiver module of the controller receives the control signal of the control terminal, and sends the control signal to the control processing unit;

(B) the control processing unit performs the zero-crossing detection on the alternating current signal sent by the time domain waveform monitoring unit;

(C) after receiving the control signal, the control processing unit detects the alternating current signal and outputs a signal to the control switch when the alternating current zero-crossing point;

(D) The control switch is controlled to be turned on and the capacitive load of the application device is turned on.
The method of suppressing surge current control according to claim 20, further comprising the steps of:

(E) The current detecting unit of the controller detects a current value in the power supply circuit after being energized.
The method of suppressing surge current control according to claim 20, wherein said controller is implemented as a lamp controller, and said application device is implemented as a lamp device.
The method of suppressing surge current control according to claim 20, wherein said controller is implemented as a capacitive load controller.
A method of suppressing surge current control according to claim 20, wherein said control processing unit is implemented as a single chip microcomputer and stores said control program in its memory.
The method for suppressing surge current control according to claim 20, wherein according to step (A), the power supply terminal of the controller is connected to the AC 5V-380V grid power, and is converted into a low voltage direct current by the working power module to be the transceiver module. And controlling the processing unit to supply power.
The method of suppressing surge current control according to claim 20, wherein said transceiver module is implemented as a high frequency wireless transceiver data module according to step (A).
The method of suppressing surge current control according to claim 20, wherein said transceiver module is implemented as a logic module for wired transmission of data according to step (A).
The method of suppressing surge current control according to claim 25, wherein according to the step (A), the operating power supply module is implemented as a power supply module that converts the high voltage AC into a low voltage DC.
The method for suppressing surge current control according to claim 20, wherein according to step (A), said transceiver module of said controller is in an active state after being powered on, to receive an external command from said control terminal at any time .
The method for suppressing surge current control according to claim 20, wherein, according to step (A), said control processing unit causes said controller to be in a power-saving state, the first input thereof, when no signal command is received The /output 埠 output is low and the optocoupler of the control switch is inactive, the control switch is in an off state, such that the controller is in a low power standby state, waiting for the arrival of the control signal.
The method for suppressing surge current control according to claim 20, wherein, according to step (A), after receiving an instruction from the control terminal, the transceiver module demodulates the data and passes the data through a serial port. Transferred to the control processing unit for processing.
The suppression surge current control method according to claim 30, wherein according to the step (B), the second input/output of the control processing unit detects the alternating current time domain waveform according to the change of the alternating current time domain waveform The time position of the zero-crossing point, when the current or voltage time domain waveform of the alternating current is just at the zero position, the first input/output port of the control processing unit will output a high level to trigger the operation of the photocoupler, The control switch is turned on to provide current to the application device.
The method for suppressing surge current control according to claim 20, wherein according to step (B), said time domain waveform monitoring unit is constituted by a RC element, which depressurizes the AC current limit to provide an AC power to said control processing unit Zero information.
The suppression surge current control method according to claim 20, wherein, according to the step (C), the control switch is under the control of the control processing unit, and in a period of the alternating current, the time domain waveform of the current is at a zero crossing point The moment is turned on or off, so that the control switch is subjected to a minimum current surge, thereby suppressing a large surge current generated by the capacitive load at the time of startup.
The method of suppressing surge current control according to claim 20, wherein, according to the step (C), the control switch is controlled by a pulse width (PWM) signal of the control processing unit at a zero crossing of a plurality of cycles of the alternating current Gradually divided into multiple turns.
The method of suppressing surge current control according to claim 20, wherein according to the step (D), the control switch is implemented as a group selected from the group consisting of a field effect transistor, a thyristor, a thyristor, a power transistor, or a semiconductor device.
The method of suppressing surge current control according to claim 20, wherein said control switch is constituted by at least one transistor and at least one photocoupler connected in accordance with step (D).
The suppression surge current control method according to claim 20, wherein according to the step (E), when the control processing unit detects that the current value monitored by the current detecting unit exceeds a preset value, the control switch is directly triggered. shut down.
The method of suppressing surge current control according to claim 20, wherein according to the step (D), the control switch is implemented as a group selected from the group consisting of a relay, a contactor, or an electromagnetic mechanical controller.
A method of suppressing surge current control according to claim 39, wherein said control switch is relayed At least one transistor driving element is present to facilitate driving of the control processing unit.
The method of suppressing surge current control according to claim 40, wherein a time at which said relay contact is actually engaged is calculated by said control processing unit.
The method for suppressing surge current control according to claim 40, wherein said control processing unit compares the time at which the signal is sent and the actual pull-in time of the contact of the relay to obtain an actual delay time of the relay.
The method of suppressing surge current control according to claim 42, wherein said control processing unit writes the delay time to the memory for the control processing unit to call at any time.
The method for suppressing surge current control according to claim 43, wherein the control processing unit issues a closing command according to a delay time of the relay in advance or delay, so that the relay is accurately connected to the power supply at an alternating current zero-crossing point. Thereby avoiding the generation of inrush current.
a control device for suppressing a surge current, which is disposed between the external power supply circuit and the application device, and supplies power to the application device under the control of the control signal of the control terminal, and is characterized in that it comprises a transceiver module and a control processing unit a control switch, and a working power module electrically connected to each other, wherein the working power module provides a required operating voltage and current for each of the electrically connected modules, and the transceiver module receives the control signal And electrically transmitting to the control processing unit, the control processing unit turns the control switch on or off when the alternating current is just at a zero crossing point to suppress the impact of the surge current.
The suppression surge current control device according to claim 45, comprising at least one substrate, wherein said transceiver module, said control processing unit, said control switch, said operating power supply module is disposed on said substrate, and electrically Connected.
The suppression surge current control device according to claim 46, comprising at least one time domain waveform monitoring unit electrically connected to said control processing unit for monitoring time domain waveform data of the alternating current and reporting to said control processing unit, So that the control switch is operated every time under the control of the control processing unit Both are in the zero crossing position, so that the current surge in the circuit is minimized when the application device is turned on or off.
The suppression surge current control device according to claim 46, comprising an input terminal and an output terminal respectively disposed on said substrate, wherein said input terminal is connected to said external power supply circuit, and said output terminal is connected to said The application device is configured to output the electrical energy to the application device through the output terminal after the input of the electrical energy through the input terminal.
The suppression surge current control device according to claim 48, wherein said output terminal outputs continuous power or outputs a pulse width signal.
The suppression surge current control device according to claim 46, wherein the current of said external power supply circuit is implemented as alternating current or direct current.
The suppression surge current control device according to claim 46, wherein said controller comprises at least one current detecting unit electrically connected to said control processing unit and said control switch for monitoring the magnitude and variation of load current And immediately triggers the control switch to turn off when the current is too large.
The suppression surge current control device according to claim 46, wherein said control switch abuts and is fixed to said substrate, and dissipates heat through said substrate to lower an operating temperature.
The suppression surge current control device according to claim 52, wherein said substrate is a metal plate.
The suppression surge current control device according to claim 52, wherein said substrate comprises a circuit layer, an insulating layer, and a substrate, wherein said insulating layer is located between said circuit layer and said substrate The substrate is a metal material, the transceiver module, the control processing unit, the control switch, and the working power module are soldered to the circuit layer to form a working circuit and to cool down by the substrate.
The suppression surge current control device according to claim 52, wherein said substrate is made of an aluminum or copper or heat dissipating material.
The suppression surge current control device according to claim 46, wherein said control switch is implemented as a group selected from the group consisting of a field effect transistor, a thyristor, a thyristor, a power transistor, or a semiconductor device.
The suppression surge current control device according to claim 56, wherein when the control switch is a semiconductor device, the semiconductor device is brought into contact with the heat sink to facilitate heat dissipation of the semiconductor device.
The suppression surge current control device according to claim 46, wherein said control switch is implemented as a group selected from the group consisting of a relay, a contactor, or an electromagnetic mechanical controller.
A suppression surge current control apparatus according to claim 58, wherein said control processing unit includes at least one memory for writing a delay time of said control switch, such that when said control switch is triggered, according to storage The delay time value is automatically operated in advance, so that the control switch opens and closes just at the zero-crossing position, so that the value of the inrush current flowing through the control switch is minimized.
The suppression surge current control device according to claim 59, wherein ID information of said control terminal is stored in said memory of said control processing unit.
The suppression surge current control device according to claim 46, wherein said control processing unit has a pairing function to form a matching relationship with said control terminal, thereby being controlled by said control terminal manipulation command.
The suppression surge current control device according to claim 61, wherein said suppression surge current control device further comprises at least one pairing button device disposed on said substrate for implementing said control processing unit and said control The matching relationship between the ends.
The suppression surge current control device according to claim 46, which is controlled by a standard wireless communication protocol and various radio frequency and infrared communication protocols selected from the group consisting of WIFI, ZigBee, Z-Wave, Bluetooth, and MESH. A group of grids or wireless local area networks.
The suppression surge current control device according to claim 46, comprising a casing comprising a bottom case and a cover case, wherein the cover case is disposed on the bottom case to protect respective electrons disposed on the substrate element.
The suppression surge current control device according to claim 64, wherein said housing further comprises a magnetic member provided to said bottom case, whereby said suppression surge current control means has a magnetic attraction function.