KR20130030712A - Power saving led lighting - Google Patents

Abstract

PURPOSE: An LED energy-saving lamp capable of saving energy is provided to implement energy saving by operating an LED illumination only if a human is present by attaching a detection sensor. CONSTITUTION: A switching device(301,302) generates high frequency voltage and turns on a fluorescent lamp. A condenser(306,307) supplies heater current. A lighting condenser(305) is attached to one of the upper electrode and the lower electrode. The other side terminal supplies power to a fluorescent discharge tube. The terminal dually comprises and receives electric power.

Description

LED sleep light. {Power saving LED lighting}

The present invention relates to an LED lighting lamp or an LED fluorescent lamp that can save power by surrounding illumination and human body sensitive sensors.

Recently, various researches and efforts for energy saving have been conducted. Among them, when the heat of LED lighting is researched and produced very hotly, the present invention uses LED lighting as a structure having the same shape as a conventional fluorescent lamp, which can effectively save power without having to replace a special device or an internal system. The invention relates to an LED lamp.

Conventional fluorescent lamps or electronic fluorescent lamps consume more power than LED lighting and have a short lifespan. In the present invention, the existing LED fluorescent lamp (fluorescent lamp) of the present invention without the need to attach or change a separate facility to the outside while using the same as it is to use the existing user to insert the fluorescent lamp circuit without modifying the fluorescent circuit separately. It is characteristic. Accordingly, in the case of an electronic fluorescent lamp, a circuit configuration is provided so that the LED lamp of the present invention can operate by receiving high frequency power. In addition, it detects the ambient light and provides a function to turn on the LED light when below a certain illuminance and a fluid detection sensor to operate the LED light when there is a person to provide an effective function to save energy.

In addition, for more effective power saving, it is more effective to supply power directly by removing the ballast of the conventional fluorescent lamp, or the electronic ballast. Therefore, it is characterized in that the operation even when the power is directly supplied.

In addition, in the case of homes, it may be annoying to wake up late at night and to turn off the lights when going to bed. In the present invention, by attaching an infrared remote control sensor inside the LED light to provide a function that allows you to turn on / off the LED light to provide a variety of remote control, such as remote control, TV, audio and the like.

In the present invention, the partial technology is a technology that has been used for decades, and constitutes a means for achieving a new invention by combining such known technologies. First, in the present invention, there may be three conditions for receiving a power input in the case of a commercial power source for LED lighting. There is a method of receiving power through a conventional ballast, a method of receiving power through an electronic ballast, and a method of directly receiving commercial power. It should be provided with a means for receiving the power in any way as described above, and the means to automatically adjust the brightness of the LED light or to ON / OFF according to the ambient illumination, and to turn on the LED light by the infrared remote control It is characterized by further comprising a means for turning on / off. The above technical means and methods will be described in detail in the detailed description.

As time goes by, energy depletion is serious and energy saving is a necessity at the present time, even if you are not an electrician. There is a characteristic that can participate in energy saving.

Figure 1. Entire block diagram.
Figure 2. A circuit diagram of a conventional ballast fluorescent lamp fixture.
3. Electronic circuit ballast fluorescent lamp circuit diagram.
Figure 4. A circuit diagram for directly supplying commercial AC power such as LED lighting.
5. Double bridge rectifier circuit for DC power conversion regardless of electrode terminal direction and power input classification.
6. Fluid sensor and infrared remote sensor and illuminance detection and LED lamp module.
7. Double bridge rectification circuit.
8. Half-duplex bridge rectification circuit.
9. A heat dissipation tube for heat dissipation of a semiconductor switching element.
10. LED light tube.
Figure 11. LED lamp overall shape.
12. Constant current drive circuit by push-pull switching drive.
13. Push-pull switching drive drive pulse waveform.
14. Push-pull switching drive drive pulse time delay waveform.
15. Voltage drop between DRAIN and SOURCE in the case of FET and COLLECTOR and EMITTER in the case of transistor.
16. An electrode terminal current control circuit corresponding to a heater.
17. Electric power protection circuit of the lamp power supply terminal.
18. Power factor compensation deactivation.
19. A power supply circuit capable of operating only an electronic ballast.

As described above, the present invention has been described as being an energy-saving invention only by replacing the existing fluorescent lamp. There are various types of lighting, such as straight fluorescent, U-shaped fluorescent lamps. In the present invention, an embodiment of the present invention will be described based on a straight fluorescent lamp. In addition, those skilled in the art will appreciate that other types of lighting can be easily changed. Therefore, since the gist of the present invention may be obscured, it will not be described separately for each structure of the lamp.

Example 1 A means for converting alternating current into direct current.

The LED is driven by direct current. Therefore, AC voltage must be converted into DC. Of course, the lamp is turned on by the alternating current, but only when the forward current flows. In the reverse direction, it turns off so that the brightness drops significantly and flickers. In the present invention, it is required to receive a power input of various methods as described above. First, the conventional ballast fluorescent lamp circuit generates a high voltage when the 202 light tube circuit of Figure 2 is driven to turn on the fluorescent lamp. In addition, the electronic fluorescent lamp generates a high frequency voltage in the switching elements 301 and 302 to turn on the fluorescent lamp as shown in FIG. Of course, both of the above-described voltage is supplied to the fluorescent electrode pin. The LED module should be turned on by converting the voltage coming into the fluorescent lamp electrode into direct current. However, in the case of the electronic fluorescent lamp as shown in Figure 3, depending on the manufacturer and the power capacity of the fluorescent lamp, but usually generates an AC voltage of 95V ~ 160V, 25KHz ~ 75KHz to supply to the fluorescent electrode electrode terminal, conventional fluorescent lamp as shown in Figure 2 is commercial ( 220V, 60Hz) AC voltage is supplied to the fluorescent electrode terminal. And when the direct AC voltage is supplied without a ballast as shown in FIG. 4, there is no power consumed in the ballast, so power efficiency can be maximized. However, the present invention is characterized in that all of the power is supplied in any way.

In the case of the electronic ballast, there is a case of controlling the current with high frequency oscillation. If the half-wave rectifier circuit is configured to obtain the DC voltage, the capacitors 306 and 307 of FIG. 3 cannot supply normal power, and the electronic ballast may malfunction. Very high. In the present invention, a full-wave rectifying circuit method is used as shown in FIG. 5, and in particular, it is not known in which terminal the electric power is actually supplied because it is parallel to flowing a heater current to the electrode terminal of a fluorescent lamp. Therefore, in the present invention, since the connection terminals of 501 and 502 of FIG. 5 have the same function, for example, there is a terminal upper electrode and a lower electrode for one electrode 501, and one of the two electrodes is a light tube for supplying a heater current. 202 or a lighting capacitor 305 is attached, and one terminal supplies electric power to the fluorescent discharge tube. Therefore, in order to receive power regardless of which terminal connection is made, it is characterized in that a dual configuration, such as bridge rectifier circuits 503 and 504, receives power to attach a smoothing capacitor 505 to obtain a DC power source. Here, the fuses 506 and 507 may be connected to either the electrode 501 or the electrode 501 in either of the drawings. If one fuse is attached to each of the electrode terminals 501 and 502, the fuse may not be attached because it does not know which way the voltage is input. In the case of the cathode electrode preheating method of the electronic ballast, electric power is supplied to the heater, and according to the manufacturer, the heater current may be detected and the operation may be controlled to flow the heater current. This only applies to electronic ballasts. Therefore, although a resistance may be attached to each of the electrodes of the electrodes 501 and 502, the resistance is severely generated, and according to the present invention, 508 and 509 are attached to a device having a capacitor or an inductance component to reduce heat generation.

An embodiment of the preferred rectifier circuit provides a circuit as shown in FIG. The main feature is that the rectifier circuit is composed by separating the power supply of the electronic ballast method and the commercial power supply method. The high frequency power is separated and combined with the rectifier circuit 714 to make a DC component by the smoothing capacitor 716. If power is supplied through the commercial power input method or the conventional ballast method, the filter circuit 711, 712, through the electrode terminals 701, 702, The DC component is made by the smoothing capacitor 716 in combination with the rectifier circuit 715 through 713. The capacitor 711 is intended to represent the basic circuit of the filter. In the case of the electronic ballast, the AC power is directly supplied. Therefore, although not shown in the circuit, the capacitor 711 is removed from the filter circuit or absorbs the power of the electronic ballast by configuring the capacitor and inductance in series. It would be desirable to avoid. When electric power is supplied through the commercial power supply method or the conventional ballast method, two electrode terminals of 701 and 702 may be shorted, respectively. Therefore, the inductances 705 and 706 are attached by the principle that the impedance is very low with respect to the inductance. Therefore, the short circuit effect can be obtained on the electrode terminal, and the rectifier circuit can operate normally regardless of which terminal the power input is input. In addition, the inductances 705 and 706 also serve to allow the heater circuit to be normally detected by the 705 and 706 in preparation for the purpose of detecting the heater current in the electronic ballast according to the manufacturer. In the case of high frequency, since the impedance of inductances 705 and 706 is high, it is provided that the heater cathode preheating power of the electronic ballast is not wasted. In the case of commercial power supplies or conventional ballasts, a protection circuit against overvoltage is required. Although not shown in FIG. 7, an overvoltage (surge voltage) protection device may be attached in parallel with the capacitor 713 to protect against overvoltage. However, when the electronic ballast is input, the overvoltage protection circuit is built in the electronic ballast so that it does not need to be separately attached. However, if the surge protection device is inevitably attached, it is not shown, but it can be applied to the AC input terminal of the bridge rectifier circuit 714. If the overvoltage protection device and the noise filter device are attached to the basic power supply circuit as shown in FIG. 3, the number of four devices should be attached to the method of connecting the electrode input terminals. Using the above method will help to reduce the cost.

In the method as shown in FIG. 7, it is preferable to remove and use a start lamp tube of a conventional fluorescent lamp. If not used, the fuse connected to the circuit connected to the lamp tube among the fuses 703 and 704 will be disconnected. This is the first time the fuse is blown and the LED lamp is activated. As above, the fuse of the circuit connected to the lighting tube should be disconnected at the first time. In order to solve this inconvenience, a DC-to-DC conversion circuit as shown in FIG. 8 is provided. In FIG. 8, an AC voltage is supplied through the electrode terminals 801 and 802, and the electrode a, the electrode a 'of the connection terminal 801, and the fuses 803 and 804 are respectively connected, and the inductance filter 805 is the heater current of the cathode preheating type in the electronic ballast according to the manufacturer. In order to detect the problem, the high-frequency current flows through the filter 805 so that the heater circuit is normally detected. Here, although the inductance and the capacitor are configured in series on the drawing, the purpose can be achieved by attaching only the capacitor. The electrode b of the electrode terminal 802, the electrode b ', and the filter 807 are connected. The filter 807 plays the same role as the filter 805. Although the inductance and the capacitor are connected in parallel in the drawing, the same effect can be obtained by attaching only the inductance. In addition, there is an effect to have a short circuit effect for the commercial power supply input. Therefore, the rectifier circuit 806, 808, 809 is a half-duplex bridge rectifier for the purpose of allowing the rectifier circuit to operate regardless of the direction of the electrode terminal of the fluorescent lamp and converted to direct current by the smoothing capacitor 811. In the present invention, when the LED lamp is turned off when the fluid is not sensed for a certain time, almost no current flows, and therefore, the resistors 717 and 810 are used to prevent the electronic ballast from operating according to some electronic ballasts. Some weak power can be consumed. Here, although the resistance is indicated in the drawing, it is preferable to attach the power in the semiconductor device only when necessary by attaching it in series with the switching semiconductor device. The purpose of consuming the weak power is to allow the electronic ballast to operate normally so that the microcomputer peripheral circuit of the present invention requires a minimum power source for operation.

In some cases, it is necessary to operate only the electronic ballast. The rectifier circuits of 1909 and 1910 and a 1911 filter are attached to each other to pass only the high frequency power of the electronic ballast by the capacitors 1905, 1906, 1907, and 1908 of FIG. 19, and the LEDs are formed by using the power of the rectifier circuit. You just need to drive. If the conventional ballast or commercial power is input, it does not operate, so it is possible to prevent safety accidents.

The conversion of the AC power source to the DC power source may turn on the LED lamp through the PWM current control module. Here, the PWM module may be combined with a microcomputer to generate a PWM signal, or may configure a constant current power supply using a semiconductor device composed of a dedicated chip. In the present invention, both are used to make the system more effective and stable in the operation of the system. In the PWM-dedicated chip, the maximum current is limited so that the LED lamp is supplied with power so that the LED lamp is not supplied by the PWM-dedicated chip more than the maximum current even when the microcomputer control unit is not operated, and the brightness, It is possible to control the PWM current control drive module by changing the duty control signal. The method as described above has the advantage that it can operate normally even if the production without inserting the corresponding parts, if the multifunctional by the brightness control of the lamp or the fluid detection is not necessary at the time of production.

As described above, by using a circuit method that separates an electronic ballast power supply from a commercial power supply or a conventional ballast power source, the LED can be driven regardless of the various power input methods described above and the number of circuit components can be reduced. Power saving light device.

Example 2 Overall System Configuration Means of LED Fluorescent Tubes.

Create a DC power source in the half-duplex or double-bridge rectifier circuit 102 capable of full-wave rectification irrespective of the electrode direction through the fluorescent lamp electrode terminal 101, supply the power to the microcomputer in the microcomputer constant voltage generator 107, and the microcomputer operation and control module 103 The LED lamp module 111 can be turned on or off by comparing the amount of light detected from the illuminance sensor module 104 with a preset value, and in some cases, the brightness of the LED lamp module is controlled according to the detected illuminance. Do it. In order to drive the LED lamp module, the current control method is most suitable. In the microcomputer operation and control module, the current data corresponding to the brightness of the lamp is stored in the memory in advance, and the PWM current control driving module 108 is selected according to the LED lamp brightness selection. The data stored in the memory and the DC voltage of the half-duplex or double-bridge rectifier circuit are processed and generated to generate and control the PWM signal.The high-frequency component is removed from the filter circuit 109 and then converted to direct current. Turn on the LED lamp module. Here, the current is detected from the current detection module and sent to the microcomputer operation and control module, and the microcomputer operation and control module corrects the current flowing in the LED lamp module. 112-1 and 112-n are the same as the blocks of 112, and the number of blocks may vary according to the LED lighting power (brightness). Although it is shown that the current detection and control in the LED block to individually detect and control, since no precise control is required, only the LED lamps may be added in series or in parallel, and the current may be corrected after detecting the entire current.

Although not shown in the drawing to control the brightness of the lamp, the voltage from the half-duplex or double-bridge rectifier circuit is input from the microcomputer operation and control module to generate the PWM signal by calculating the current for the voltage. The PWM signal is input from the PWM current control driving module to drive the PWM current control driving module to supply power to the LED lamp module, and the PWM current control driving module inputs current from the current detection module to supply stable constant current power. In response, the error portion is corrected and the PWM signal generation is corrected and outputted, and the correction process is repeated to provide a stable constant current drive.

The apparatus of the present invention receives a variety of power inputs, so the range of input voltages is very wide. Therefore, in order to increase power efficiency, it is preferable to supply a current to the LED lamp by converting the PWM power to the primary side using a high frequency transformer rather than a booster converter circuit during PWM driving and converting the DC voltage to the secondary side.

More efficient power saving LED by adding PFC (Power Factor Correction) circuit to rectifier circuit for power factor correction at commercial AC power input or power input of conventional ballast, and adding power filter to remove high frequency noise generated during PWM driving. Could provide lighting. Although the power factor correction is performed in the rectifier circuit as described above, in the present invention, the microcomputer control unit calculates the power factor. When the current flowing through the LED flows, the primary DC voltage of the rectifier circuit comes out in the form of a pulse that corresponds to twice the power frequency. Read the pulse voltage of the primary DC power smoothing circuit in real time from the microcomputer control module to calculate the phase of the voltage, and generate the PWM signal in real time according to the phase, or adjust the duty ratio in the PWM drive module to adjust the power factor. Improves the power factor by real-time arithmetic processing, or by storing current data corresponding to a pre-optimized phase in the microcomputer memory, generating a PWM signal in real time in the PWM driving module, or adjusting the duty ratio in the PWM driving module. If it corresponds to the brightness setting of the LED lamp, it operates by calculating the current corresponding to the voltage phase according to the current ratio for the brightness. It is characterized by improving the power factor in the same manner as described above.

It detects the movement of objects or people (fluid) and provides intelligent control of LED lamp lighting and step-by-step brightness for a certain time. As a means for detecting fluids, infrared light emitting and receiving infrared diodes, an ultrasonic sensor, a Doppler sensor module, and the like can be easily used in various ways. Among the sensors listed above, a Doppler-type sensor may be effective, but a method of detecting by an infrared light-transmitting diode may be good to reduce production cost. The sensor method is not limited to the Doppler sensor module and the infrared light-receiving sensor, and it will be appreciated that various sensors may be attached and used as a means for achieving the above object. If the Doppler sensor module is used, the Doppler sensor module is converted into a voltage according to the movement of the fluid and output. Therefore, the microcomputer control module monitors the voltage change and provides power to increase the power efficiency by turning off the LED lamp or controlling the brightness according to the amount of voltage change. If an infrared light emitting diode is used, it can be carried out as follows. In order to prevent data collision with the infrared remote controller, the infrared light emitting diode 105 is supplied with a high frequency current at regular intervals, and the infrared light emitting diode detects the amount of light reflected by the infrared light emitting diode and passes only a high frequency component. It can be amplified and converted to a voltage through and sense the movement of the fluid in response to the voltage change. In the present invention, the infrared detection and communication module 106 filters and amplifies and converts the voltage to the microcomputer operation and control module so as to obtain the same effect in place of the above-described infrared light receiving diode. The microcomputer operation and control module reads the voltage according to the fluid change and provides an LED lamp module for turning on and off the LED lamp module for a predetermined time and increasing power efficiency through brightness control. The infrared detection and communication module not only detects the fluid movement but may also function to receive an infrared remote controller, or may be configured separately. Embodiments related to the remote control may be as follows.

In order to prevent crosstalk between the infrared signal of the remote controller and the infrared signal for detecting the fluid described above, it is necessary to be different from the infrared high frequency signal of the remote controller. Therefore, in the present invention, by varying the frequency of the infrared remote control such as a general television (television), all-axis, and the infrared detection frequency for distinguishing the fluid, it is made to separate the high-frequency filter at the time of reception.

The communication module in the infrared detection and communication module is for receiving the data of the infrared remote controller, and is capable of receiving specific codes to turn on or off the LED lamp module as well as setting the brightness of the LED lamp module and detecting the fluid. It is characterized in that it is possible to set the lighting time by, or to provide a simple operation to turn on or off by pressing any button on the infrared remote control by a simple operation. The infrared remote control data is stored in the microcomputer memory in advance so that not only a dedicated remote controller to be used in the present invention but also various types of TVs and a stereo remote controller can be used at the same time. It is not shown in FIG. 1, but it is not shown in FIG. 1 when the remote control signal is detected. Make sure Examples of the command code provide a light, a light, a light, a dark, a timer, and the like.

The remote controller may use a dedicated remote control, but there are various types of remote controllers in the house. The television remote control used in daily life rather than a dedicated remote control is always around the user and it will be convenient to use it. Therefore, for example, the power switch of the remote control corresponds to the lighting and turning off of the LED lamp, the volume up / down adjustment corresponds to the lamp brightness, and the channel up / down adjustment corresponds to the off timer. And store the manufacturer's remote control data codes of the remote controller in the memory of the microcomputer control module, and if the data codes of the remote controller are received regardless of the manufacturer's remote controller, the brightness of the LED lamp is compared with the stored remote controller data memory, It is characterized in that it provides to perform a command that can be turned on, off.

Example 3 intelligent power saving

The present invention is to provide an object to increase the power saving efficiency as one of the main features of the LED energy-saving lighting. Therefore, as a means for intelligent power saving, it is necessary to control the lighting maintenance, the brightness setting and the extinguishing time of the lamp according to the change in ambient illumination and the number of times the moving object is detected for a predetermined time. If the ambient illuminance is dark and the moving object detects a large amount of time, the brightness of the lamp may be brightened. If the illuminance is dark and the moving object has a small number of times of detection, the brightness of the lamp may be lowered slightly. In addition, if the illuminance is dark and the moving object is not detected for a certain time, it is necessary to set the minimum brightness. The above conditions can be set in various ways. Therefore, the microcomputer operation control unit stores data such as driving current (brightness), off time, etc. of the lamp corresponding to the illuminance and the number of detections of the moving object in advance, and intelligently increases the power efficiency by controlling the lamp as described above. .

Example 4 LED constant current drive method

Although many methods are currently used to drive LEDs, you are familiar with the fact that the semiconductor devices of switching drive drives generate a lot of heat. In addition, when the switching element is damaged due to the heat, the same phenomenon as that of a short circuit occurs on the power supply side, which causes a lot of fire. There are many examples that use LED BUCK constant current stabilization power method, and in this case, it is not too much at one fixed voltage, but the present invention is required to operate both power input method and commercial power input method of electronic ballast. Based on PL40, high frequency output voltage is output around 100V. Therefore, there is a difficulty in operating a wide range of approximately 80 V to 340 V in the primary rectifier circuit. In general, the LED BUCK stabilized power supply is configured in series with a DC power output terminal, an LED lamp module, an inductance, a switching driving element, and a current sense resistor. As described above, a dangerous situation occurs when the switching element is damaged. In particular, as described above, when the circuit is configured in series with the DC power supply, when a current flows in the driving switching semiconductor, in the case of the FET, DRAIN and SOURCE In the case of a transistor, a voltage drop occurs due to an inductance characteristic between 150 COLLECTOR and the EMITTER as shown in 1501 of FIG. In addition, there is a problem that a lot of power loss occurs in the inductance.

In order to solve the problem of the LED BUCK constant current stabilized power supply switching drive stage, the present invention is characterized in that the invention is invented by a series combination of inductance and capacitor in the drive stage in the push-push switching mode as shown in FIG. .

FIG. 12 is a constant current PWM driving circuit which generates respective driving pulses to the GATE of the push-pull switching drive devices 1203 and 1205 through the resistors 1202 and 1204 in the PWM driving device or the PWM signal generator 1201. The driving pulses opposite to each other are made and supplied to the switching element. In this case, as shown in 1401 of FIG. 14, it is preferable to give a delay time when the driving pulses do not collide with each other, and a circuit is configured in series with the primary side of the capacitor 1206 and the high frequency transformer 1207 at the push-pull switching drive output terminal. The voltage is induced on the secondary side of the high frequency transformer. Since 1206 and 1207 are serial configurations, the positions 1206 and 1207 may be changed. The secondary DC voltage is formed by the rectifier diode 1208 and the capacitor 1210 on the primary side of the high frequency transformer 1207 and the LED lamp module 1211 is attached to the secondary output voltage. Since the LED lamp module needs constant current driving, it is configured in series with a resistor to detect current in the LED lamp module, and transfers the detected current to the current detection input terminal of the PWM driving circuit or the microcomputer operation and control module, and the microcomputer operation and control. The module processes the current to drive constant current through the PWM signal generator. In addition, it is possible to control the lamp brightness by attaching a general volume to the 1212 for fine current adjustment, or by attaching an electronic volume 1212 to control the LED lamp brightness and transmitting it to the current control signal 1213 from the microcomputer calculation and control module. The present invention provides for controlling or turning on / off the brightness of the lamp in various ways. I think you can use the appropriate method according to your needs.

In the present invention, when the lamp is turned off when the power of the electronic ballast is input, since the load current hardly flows, the voltage is very high in the rectifier circuit of the present invention according to the manufacturer of the electronic ballast. The present invention is to solve the above problems. FIG. 16 is a device for controlling the output voltage of the electronic ballast when the lamp is extinguished, and FIGS. 5, 7 and 8 show a resistor, a capacitor, and an inductance for flowing a current corresponding to a heater in both electrode terminals. The electronic ballast is induced to operate normally by configuring it alone or in series or in parallel. However, in the present invention, when the light is turned off for energy saving, the output voltage of the electronic ballast is very high as described above. In this case, it is preferable that the electronic ballast prevents the output voltage. Of course, when the electronic ballast is unloaded, the output voltage is repeatedly output for a short time, so that the power required for the microcomputer control circuit of the device can be sufficiently obtained. In addition, according to the manufacturer of the electronic ballast is large difference in the output voltage can adjust the current corresponding to the heater to obtain the voltage required for the output voltage. Actually, when the electronic ballast is higher than a certain output voltage, the switching driving circuit stops the operation for a while. Referring to FIG. 3, which is a circuit of the electronic ballast, the circuit is configured in series with the heater electrode, the switching driver, the transformer 303, the heater, and the capacitor 305. Therefore, when either of the heater electrodes of both circuits are disconnected, the switching driver blocks or adjusts the output voltage according to the feedback value. If a lot of current flows to the terminal corresponding to the heater, the output voltage of the electronic ballast will be high. 5, 7, and 8 are the same method for flowing a current corresponding to the heater, but instead of the basic drawings of FIG. 5, 508, 509, FIG. 7, 705, 706, and 805, 807 of FIG. Additional circuits such as (16-A) or (16-B) are attached. First, 16-A requires two things to flow a current corresponding to a heater, but since only one part is shown and described, it will be described. In addition, the terminal corresponding to the other heater may be attached with an element having an appropriate impedance. 1601 and 1601 'may be connected to a position for flowing a current corresponding to the heater, and at this time, although not shown in FIG. 16, a capacitor may be additionally attached so that only a high frequency current is input. A rectifier circuit 1602 and a capacitor 1603 are attached to both ends of the electrode, and are configured in series with the resistor 1604 and the transistor 1605. The resistor is not necessarily limited to a resistor, and may be connected without a resistor by shorting the 1608 according to an operation method, and may be replaced with an inductance, or may be configured in series with or in parallel with a resistor. The input terminal current corresponding to the heater electrode can be adjusted according to the bias of the transistor, and if the output voltage of the ballast is actively controlled, the output voltage of the rectifying circuit of FIGS. 5, 7 and 8 is detected to detect the transistor base input. The electronic ballast output voltage can be adjusted by adjusting the bias current. If the output voltage of the electronic ballast is high, the bias current is low. If the output voltage of the electronic ballast is low, the bias current can be flowed high to obtain a stable voltage. In addition, if the bias current does not flow, the electronic ballast intermittently outputs an output voltage.

If it is controlled by the microcomputer operation and control module, the D / A converter is attached to the switching or current control 1606 to transfer the microcomputer operation and control module signal to 1607 to adjust the bias current. The microcomputer operation and control module detects the output voltage of the electronic ballast in real time and controls the bias current to the transistor so that the output voltage of the electronic ballast can be constant or output the required voltage.

In the case of (16-B) of FIG. 16, a circuit can be additionally attached to the same position as (16-A) described above, and a current corresponding to the heater can be flown without using a rectifier circuit at a terminal corresponding to the heater. Circuit configuration. A resistor having an impedance, an inductance, or a capacitor is configured in series with the device 1612, which is configured alone, in series, or in parallel with the FET 1611, and adjusts the bias voltage to the gate to allow the impedance to change or switch to alternating current. To regulate the heater current. The 1611 'and 1612' also provide a way to adjust the heater current by varying the impedance of the 1612 and 1612 'when the FET is switched.

When controlling the current adjustment by the microcomputer to the electrode terminal corresponding to the heater by using the circuit system of (16-A) and (16-B) described above, it is necessary to insulate the bias current to the above-described GATE or BASE. In addition to the control method, the current may be controlled by the PWM method. Here, the PWM method is also provided that the microcomputer operation and control module detects the output voltage of the electronic ballast in real time, and control the switching circuit by the PWM method to make the output voltage of the electronic ballast constant or output the required voltage. do. In the circuit system of (16-B), since the transistor or the FET is used to control the high frequency current corresponding to the heater described above, the circuit may be configured to enable AC switching.

According to the present invention, the brightness of the LED lamp can be changed from extinguished to maximum brightness, so that the voltage fluctuation range of the electronic ballast increases, so as to adjust the current to the electrode terminal corresponding to the heater terminal as described above, a stable high frequency output of the electronic ballast is provided. It is characteristic that voltage can be obtained.

The present invention is to operate the conventional ballast, commercial power input method, electronic ballast. Here, the electronic ballast has a power factor correction circuit built therein. Therefore, the conventional power stabilizer and commercial power input method improves the power factor by a known method using the component elements of 1803, 1804, 1805, and 1806 of FIG. 18, and the electronic ballast does not need to improve the power factor in the case of an electronic ballast. The high frequency voltage is detected to turn on the switching circuit of 1808 and the function of the power factor correction circuit is lost. Since capacitors 1803 and 1804 are connected in series, the actual capacitor capacity is reduced to 1/2, but when 1808 is turned ON, the effect of one capacitor 1803 can be obtained. Can be.

In a linear LED lamp, the electrode terminals have two pins on each side of 1101, 1101 ', or 501, 502. If the power supply voltage is applied while the 1101 is inserted into the socket, there is a risk of electric shock due to leakage current at the 1101 '. In the case of Fig. 17, when the 1701 and 1702 terminals correspond to 1101, and the 1703 and 1704 terminals correspond to 1101 ', the load is formed by the LED driving circuit and the LED module of the 1708 in a general circuit. In addition, the 1707 smoothing capacitor has a low instantaneous impedance with respect to charging. Therefore, when current is supplied to 1101, current flows to 1101 ', which may cause an electric shock. In the same way, when a current is supplied to 1101 ', a current flows to 1101, which may cause an electric shock. In order to solve such a problem, the present invention uses a switching circuit of 1715 to block current flow due to the 1707 capacitor and the 1708 load device. When power is supplied to the electrode terminals 1101 and 1101 ', the forward voltage (+) is applied to the switching transistor of 1713 through 1717 resistor in the 1705 rectifier, and when the power is supplied to the electrode terminal 1101', the 1706 rectifier A bias is applied to the switching transistor of 1714 via the 1712 resistor at the forward voltage (+) to conduct the conduction, and the positive voltage of the 1713 COLLECTOR to drive the 1715 FET switching device at the resistors 1716 and 1717 through the EMITTER of 1714 It provides a bias voltage to turn on the 1715 switching element to short-circuit the DRAIN and SOURCE, providing a smoothing capacitor, a 1708 LED driver circuit, and an LED module of the 1707 rectifier circuit with the power circuit to supply power for normal operation.

On the other hand, if power is not supplied to either of the electrode terminals 1101 and 1101 ', the switching transistors of 1713 and 1714 are configured in series so that one of them is turned off so that the bias voltage cannot be supplied to the 1715 switching circuit. By blocking the flow, the leakage current does not flow to the electrode terminal that is not supplied to prevent electric shock.

1709 and 1710 diodes are for preventing power from being supplied to a place where power is not supplied among the terminals when power is supplied from the terminals 1101 and 1101 'of 1705 and 1706.

The same effect can be obtained when a relay switching circuit is configured and used instead of the 1715 semiconductor switching circuit. As described above, in the present invention, when power is supplied to the electrode terminals 1101 and 1101 ', the rectifier circuit and the load device are connected by using a semiconductor switching element or a relay, and when either of the electrode terminals is not connected to the power source, The 1715 semiconductor switching element or relay allows the 1707 smoothing capacitor of the 1708 load device and the rectifier circuit to be disconnected from the power supply circuit, preventing leakage current from flowing to terminals that do not supply power among the electrode terminals of 1101 and 1101 '. It is characterized by.

As described above, the LED driving circuit and the LED module, which are the 1705 and 1706 rectifier circuit, the 1707 capacitor, and the 1708 load device, constitute a 1715 switching circuit that can disconnect or short-circuit the power supply of the rectifier circuit. The 1715 'switching circuit operates only when the power supply is detected from the 1101' terminal, and the 1713 and 1714 switching elements are serially connected (AND), and the LED driving circuit is a 1707 capacitor and 1708 load device of the rectifier circuit. And short-circuit the LED module with the power supply of the rectifier circuit.If only one terminal is supplied with power from the 1101 and 1101 'terminals, the 1715 switching circuit is turned off, and the 1707 capacitor and 1708 load device of the rectifier circuit are turned off. The LED drive circuit and the LED module are disconnected from the power supply of the rectifier circuit, and the leakage current flows toward the terminal that does not supply power among the electrode terminals of 1101 and 1101 '. It is characterized by preventing the electric shock by preventing the flow.

In general, when a DC voltage is applied to the inductance, the current initially flows small, but when a certain time passes, the current flows large, and the capacitor flows in reverse. As the inductance and the capacitor are configured in series in the switching drive stage using the characteristics of such a component element, the voltage drop between the drain and source of the FET and the collector and the emitter of the transistor falls close to 0 V in the switching element. The deterioration phenomenon can be eliminated, and in the case of one of the two push-pull switching elements, the capacitor 1206 prevents the short circuit of the + B power supply even if it is shorted.

As described above, the primary DC voltage is composed of a PWM drive module and a push-pull switching drive element, and a capacitor and a high-frequency transformer primary side are connected in series with the push-pull switching drive output terminal to generate an induced voltage on the secondary side of the high-frequency transformer. To the secondary DC voltage through the rectifier and the smoothing capacitor, connect the DC voltage to the LED lamp module and the current detection resistor in series, and transfer the current flowing through the lamp to the PWM driving module. It is characterized in that the current flows constantly.

Example 5 External appearance of LED lighting.

6 is a view of the structure of the LED lamp. Here, the electrode terminal 601 is disposed in order to maintain compatibility with the socket of a conventional fluorescent lamp, an infrared light emitting diode for detecting a fluid, or a Doppler sensor module 602, 603 for detecting infrared light and remote control signals, and for detecting illuminance. 604, respectively, and the LED lamp 605 in series or in parallel or in parallel parallel circuit, and for the infrared light emitting diode and infrared light receiving and remote control signal detection, it is preferable to insert a lens-like component to widen the reception angle. Do. In addition, the arrangement for detecting the illuminance is preferably placed in the holder so that the light of the LED lamp does not directly enter the side to receive the light of the LED lamp or to place the sensor on the side. It is characterized in that one LED lamp is configured by assembling into the case 606 for attaching the circuit board and the electrode of the contents.

Although a straight tube is described as an example for forming a fluorescent tube, an electrode terminal, and an electrode plug for inserting the LED lamp module, the power supply device, the microcomputer controller, and the sensor module in the LED fluorescent tube of FIG. Those skilled in the art will appreciate that it is easily applicable to fluorescent lamps of type and U type. Therefore, only the intuition will be described. In the present invention, when the power of the PL40 straight fluorescent lamp standard corresponds to the LED lamp, the power consumption will be in the range of about 18W to 23W. Although it has been confirmed that no heat is generated in the switching semiconductor device of the PWM constant current drive device of the power supply for outputting this much power, but heat may be generated depending on the use environment or conditions, and a large power LED lamp needs to be driven. In case of considerable heat generation, use metal material such as aluminum to transfer heat well to the outside, such as 903, and make surface irregularities to maximize the heat dissipation effect by making large contact area with air. It is a structure in which the switching semiconductor device of the PWM constant current driving device is brought into contact with 905 to transfer heat well. As shown in 904, the 'c' shaped irregularities are provided on both sides to slide the circuit board. 902 is an electrode terminal, 901 is a stopper that can be fixed to the electrode terminal and can be combined with 903, made of an electrically insulating material to facilitate assembly. In addition, a structure that can be inserted into the groove of the 906 so as to be parallel to the direction in which the electrode terminal and the circuit board can be inserted. In addition, the fluorescent tube of FIG. 10 is made of a translucent white LED lamp is made of a white translucent material and a material that diffuses the light so that the human eye is not tired, and easy to insert the LED lamp circuit board 1001, 1001 ' As shown in the form of 'c' and the grooves of the 904 and 1001 must match the circuit board can be inserted so that the grooves of the 906 and 1001, 1001 'is formed into a structure that can be inserted. 11 is an external view of the completed LED lamp, the electrode terminal 1101, the heat dissipation tube 1002, 1002 'for heat dissipation of the semiconductor output element as a component, wherein the heat dissipation tube may be arranged on both the left and right sides, but according to the circuit configuration It can also be placed and used only. And a tube 1103 for diffusing the light source of the LED lamp.

If the U-shaped fluorescent lamp is fitted to the structure, the plug can be fitted to fit the electrode socket structure of the fluorescent lamp and the electrode plug is attached to the plug 4 to form an electrode plug, the heat radiating tube 'U 'The structure is similar to the shape of the fluorescent lamp of the shape and to facilitate the assembly of the tube-like heat dissipation tube described above to facilitate assembly of the electrode plug and the light source on both sides. Here, the tube for diffusing the light source of the 'U' type LED lighting does not have to be a 'U' type, it is configured in a rectangular shape to fit the size, and the spring structure for fixing the fluorescent lamp in the middle of the fluorescent fixture It is easy to fix the LED light to fit the LED light to the spring to fit.

As described above in the embodiment of the present invention, the present invention can be used by inserting the LED lamp of the present invention without changing the conventional fluorescent lighting fixtures that are existing. In addition, energy efficiency will be maximized if a professional technician removes the conventional ballast or electronic ballast and connects the commercial power directly. In addition, it is possible to save energy more effectively by intelligent power control. Therefore, the energy saving in any way is characterized by being able to easily use even those who do not have expertise in electricity.

Commercial power: AC power input at 220V, 50 / 60Hz.
Conventional fluorescent lamp: A lighting tube and a ballast are built in as shown in FIG.
Electronic fluorescent lamp: A method of lighting a fluorescent discharge tube by supplying high-plate power by electronic switching as shown in FIG.
PWM current control drive module: Modulates the pulse width to supply power to the LED lamp module in a constant current method, and includes controlling the brightness of the lamp.
LED lamp module: The configuration of multiple LEDs in series or in parallel or in parallel.
Connection terminal: In 601 of FIG. 6, the electrode terminals correspond to a and a 'of 801, and are referred to as connection terminals or electrode terminals for connecting to fluorescent lamp sockets, and a and a' of 801 are represented as electrodes. do.

Claims (1)

LED light

Images