CN108183608B - Boosting circuit - Google Patents
Boosting circuit Download PDFInfo
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- CN108183608B CN108183608B CN201711448932.2A CN201711448932A CN108183608B CN 108183608 B CN108183608 B CN 108183608B CN 201711448932 A CN201711448932 A CN 201711448932A CN 108183608 B CN108183608 B CN 108183608B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Control Of Ac Motors In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
A booster circuit is used for solving the problem of poor compatibility when a ringing control device with large power consumption is connected into a traditional mechanical doorbell system. This pressure boost circuit is applied to doorbell system, and this doorbell system can include the transformer, ringing device and ringing control device, and the commercial power is connected to the elementary of transformer, and the secondary of transformer establishes ties with ringing control device and ringing device and forms the return circuit, and pressure boost circuit is parallelly connected with ringing device, and pressure boost circuit is in the off-state when ringing device ringing is controlled to ringing control device, and pressure boost circuit is in the on-state when ringing device does not ring. When the booster circuit is in a disconnected state, the ringing device can ring normally, and when the booster circuit is in a connected state, the resistance of the booster circuit connected with the ringing device in parallel is reduced, the divided voltage is reduced, so that the divided voltage of the ringing control device is increased, and the voltages at two ends of the ringing control device can be increased, and the ringing control device can work normally.
Description
Technical Field
The application relates to the technical field of power supply circuit boosting, in particular to a boosting circuit.
Background
The traditional mechanical doorbell system architecture includes: referring to fig. 1, a transformer steps down a high voltage mains supply (110V-220V) to a voltage (e.g., 8V-24V) that can be used for normal operation of a ringing device, the mechanical switch button is generally placed at an outdoor doorway, the ringing device is generally placed indoors, when the mechanical switch button is triggered, a power supply loop where the ringing device is located is turned on, and when the voltage provided for the ringing device reaches the normal operating voltage, the ringing device can sound normally.
Along with the development of image processing technique and wireless technology, in order to satisfy user's variety demand, provided a multi-functional ring controlling means, this ring controlling means can be by switch module, image acquisition module, processing module and wireless module etc. and constitute, because this ring controlling means integrated function is more, leads to its power consumption great. In the related art, in order to save resources, a new doorbell system is not rearranged, the ringing control device is connected into a loop of the traditional mechanical doorbell system to replace a mechanical switch key to drive the ringing device to work, see fig. 2, fig. 2 is a schematic structural diagram of connecting the ringing control device into the traditional mechanical doorbell system, the ringing control device is connected in series in a power supply loop and takes power from the loop connected in series, the ringing device can be controlled by a switch module, meanwhile, a video of a visitor can be collected by an image collection module, a wireless signal can be received by a wireless module, and various requirements of users can be met while resources are saved.
The mechanical ringing device is equivalent to a resistor of dozens of ohms in a power supply loop of the ringing control device, the ringing control device can obtain most of voltage output by a transformer, and the normal operation of the ringing control device can be basically ensured, but the impedance of the inner coil of a part of the mechanical ringing device is very large, so that the ringing control device cannot distribute enough voltage, and further cannot work normally; the electronic ringing device is usually internally provided with a structure composed of a rectifier bridge, a voltage reduction circuit and the like, the equivalent impedance of the electronic ringing device is very large and can reach the kilohm level, so that the ringing control device cannot be directly connected to an electronic doorbell system comprising the electronic ringing device, namely, the ringing control device can only be suitable for partial mechanical or electronic doorbell systems.
Disclosure of Invention
The embodiment of the application provides a booster circuit for solve prior art, when inserting the great ringing control device of power consumption into traditional machinery or electron doorbell system, compatible relatively poor problem.
The purpose of the application is realized by the following technical scheme:
in a first aspect, a voltage boost circuit is provided for a doorbell system, which may include a transformer, a ring device, and a ring control device. Wherein, the primary connection commercial power of transformer, the secondary of transformer with ringing control device and ringing device establishes ties and forms the return circuit, boost circuit with ringing device is parallelly connected, boost circuit is in ringing control device control be in the off-state during the ringing of ringing device, boost circuit is in ringing control device control be in the on-state when not ringing of ringing device.
In the embodiment of the application, when the ringing control device with higher power consumption is connected into the traditional mechanical doorbell system, a booster circuit is introduced at the same time, the booster circuit is connected in parallel with the ringing device in the doorbell system, when the booster circuit is in an off state when the ringing control device controls the ringing of the ringing device, the ringing device can ring normally, when the booster circuit is in an on state when the ringing control device controls the ringing device not to ring, the resistance of the booster circuit connected in parallel with the ringing device is reduced, the partial pressure of the ringing control device is increased, the voltages at two ends of the ringing control device can be increased, and further the ringing control device can execute functions except for controlling the ringing device, therefore, by the scheme of the application, when the ringing control device with higher power consumption is connected into the traditional mechanical doorbell system, the booster circuit provided by the application can be connected simultaneously, can improve ringing control device's partial pressure for in the great ringing control device of power consumption can insert most traditional mechanical doorbell system, can improve the compatibility that ringing control device inserts traditional mechanical doorbell system.
Preferably, the voltage boost circuit includes a voltage conversion module, a control module, a switch module and a resistance module. The voltage conversion module is connected with the transformer and used for converting the alternating-current voltage output by the transformer into a second direct-current voltage; the control module is powered by the second direct-current voltage and is used for controlling the switch module according to the second direct-current voltage; the switch module is in a closed state and is used for switching the conduction state of the booster circuit; and the resistance module is arranged according to the working voltage of the ringing control device and is used for protecting the booster circuit.
In this application embodiment, can be according to ringing control device's operating voltage sets up the resistance of resistance module, can be so that when booster circuit was in the on-state, the resistance of the parallelly connected resistance of booster circuit and ringing control device can be according to ringing control device's operating voltage sets up, makes ringing control device partial pressure can reach its operating voltage through setting up suitable resistance, makes its normal work.
Preferably, the voltage conversion module includes a rectifier bridge and a voltage stabilization module. The rectifier bridge is connected with the transformer and used for converting the alternating-current voltage output by the transformer into a first direct-current voltage; the voltage stabilizing module is used for converting the first direct-current voltage output by the rectifier bridge into the second direct-current voltage.
In this application embodiment, the voltage of transformer output is alternating voltage, and the operating voltage in the doorbell system is direct current voltage, converts the alternating voltage of transformer output into first direct current voltage through the rectifier bridge in this application, and converts first direct current voltage into the voltage that can supply control module work through voltage stabilizing module.
Preferably, the control module comprises a switch driving module and a comparison module. The comparison module is used for comparing the second direct current voltage with a preset threshold voltage and outputting a level value for indicating a comparison result according to the comparison result; and the switch driving module is used for controlling whether the switch module is conducted or not according to the level value.
In the embodiment of the application, the control module is composed of a switch driving module and a comparison module, the comparison module compares the second direct current voltage with the preset threshold voltage, and controls the switch driving module according to the comparison result, so that the automatic control of the switch module is realized, and manual participation is not needed.
Preferably, the preset threshold voltage is a lowest working voltage of the ringing device, and the comparing module is specifically configured to output a high level when the second dc voltage is greater than the preset threshold voltage, and output a low level when the second dc voltage is less than the preset threshold voltage; the switch driving module is specifically configured to control the switch module to be non-conductive according to the high level and control the switch module to be conductive according to the low level.
In the embodiment of the application, through setting up preset threshold voltage as the minimum operating voltage of ringing device, when second direct current voltage is less than the minimum operating voltage of ringing device, the comparison module exports the low level, and switch drive module basis low level control switch module switches on, and then realizes when the ringing device is out of work for the partial pressure of ringing device diminishes, can increase the voltage at ringing control device both ends, makes its normal work.
Preferably, the comparison module includes an operational amplifier, a positive input end of the operational amplifier inputs the preset threshold voltage, a negative input end of the operational amplifier is connected to the voltage stabilizing module, and an output end of the operational amplifier is connected to the switch driving module.
In this embodiment, the comparison module may be an operational amplifier, or a comparator, and when the comparison module is an operational amplifier, the positive input terminal of the operational amplifier inputs the preset threshold voltage, the negative input terminal of the operational amplifier is connected to the voltage stabilizing module, and the output terminal of the operational amplifier is connected to the switch driving module.
Preferably, the switch module comprises a relay; the input end of the relay is connected with the switch driving module.
In the embodiment of the present application, the switch module is not limited, and may be, for example, a relay, or a metal Oxide semiconductor field effect transistor mos (metal Oxide semiconductor) transistor switch circuit.
Preferably, the switch driving module comprises a triode; the base electrode of the triode is connected with the output end of the operational amplifier, the collector electrode of the triode is connected with the input end of the relay, and the emitter electrode of the triode is connected with the common ground.
In the embodiment of the application, the switch driving module depends on the type of the switch module, and when the switch module is a relay, the switch driving module can be a triode, so that the switch module and the switch driving module can work well in a matched mode.
In a second aspect, a doorbell system is provided that includes a transformer, a ringing device and a ringing control device and includes any one of the above-mentioned booster circuits, wherein, the primary connection commercial power of transformer, the secondary of transformer with the ringing control device and the ringing device establishes ties and forms the return circuit, the booster circuit with the ringing device is parallelly connected.
In the embodiment of the application, when the booster circuit is in the off-state when the ringing control device controls the ringing device to ring, the ringing device can ring normally, when the booster circuit is in the on-state when the ringing control device controls the ringing device not to ring, the resistance of the booster circuit connected with the ringing device in parallel becomes small, the divided voltage of the ringing control device is increased, the voltages at two ends of the ringing control device can be improved, and the voltages at two ends of the ringing control device can reach the working voltage.
Preferably, the ring control device is internally provided with a power supply circuit.
In this application embodiment, control at ringing control device during the ringing of ringing device, ringing control device can't obtain the voltage from the circuit, through at the built-in power supply circuit of ringing control device, is applicable to the ringing control device that needs last power supply.
In the above embodiments of the present application, when the ringing control device with large power consumption is connected to the conventional mechanical doorbell system, a voltage boosting circuit is introduced, the voltage boosting circuit is connected in parallel with the ringing device in the doorbell system, when the voltage boosting circuit is in the off state when the ringing control device controls the ringing of the ringing device, the ringing device can ring normally, when the voltage boosting circuit is in the on state when the ringing control device controls the ringing device not to ring, the resistance of the voltage boosting circuit connected in parallel with the ringing device becomes smaller, the voltage division of the ringing control device is increased, the voltages at two ends of the ringing control device can be increased, and the ringing control device can perform functions other than controlling the ringing device, therefore, according to the solution of the present application, when the ringing control device with large power consumption is connected to the conventional mechanical doorbell system, the voltage boosting circuit provided in the present application can be connected simultaneously, can improve ringing control device's partial pressure for in the great ringing control device of power consumption can insert most traditional mechanical doorbell system, can improve the compatibility that ringing control device inserts traditional mechanical doorbell system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a conventional mechanical doorbell system;
fig. 2 is a schematic structural diagram of a conventional mechanical doorbell system with a ringing control device connected thereto;
fig. 3 is a schematic structural diagram of a voltage boosting circuit applied to a doorbell system according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a voltage boosting circuit according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another boosting circuit provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of another voltage boosting circuit provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application;
FIG. 8 is a schematic diagram of another exemplary boost circuit according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Before proceeding with the description of the present application, a brief description of some concepts involved in the present application will first be provided for the understanding of those skilled in the art.
In the present embodiment, the electronic signal driven doorbell system is described as an example, and may include a ringer device installed indoors, a transformer for supplying power, and a ringer control device installed outdoors (for example, may include one button for controlling the ringer device), where the ringer state of the ringer device in the following embodiments of the present application is a state in which the button for controlling the ringer device in the ringer control device is pressed, and the non-ringer state of the ringer device in the present application is a state in which the button for controlling the ringer device in the ringer control device is not pressed.
In order to solve prior art, when inserting the great ringing control device of power consumption into traditional mechanical doorbell system, compatible relatively poor problem, this application embodiment provides a pressure boost circuit.
Fig. 3 is a schematic structural diagram of a doorbell system to which a voltage boosting circuit according to an embodiment of the present application is applied, and referring to fig. 3, the doorbell system may include a transformer, a ringing device, and a ringing control device, where: the primary connection commercial power of transformer, the secondary of transformer and ringing control device and ringing device establish ties and form the return circuit, and pressure boost circuit is parallelly connected with the ringing device, and pressure boost circuit is in the off-state when the ringing device of ringing control device control rings, and pressure boost circuit is in the on-state when the ringing device of ringing control device control does not ring.
In the embodiment of the application, when the ringing control device with higher power consumption is connected into the traditional mechanical doorbell system, a booster circuit is introduced at the same time, the booster circuit is connected in parallel with the ringing device in the doorbell system, when the booster circuit is in an off state when the ringing control device controls the ringing of the ringing device, the ringing device can ring normally, when the booster circuit is in an on state when the ringing control device controls the ringing device not to ring, the resistance of the booster circuit connected in parallel with the ringing device is reduced, the partial pressure of the ringing control device is increased, the voltages at two ends of the ringing control device can be increased, and further the ringing control device can execute functions except for controlling the ringing device, therefore, by the scheme of the application, when the ringing control device with higher power consumption is connected into the traditional mechanical doorbell system, the booster circuit provided by the application can be connected simultaneously, can improve ringing control device's partial pressure for in the great ringing control device of power consumption can insert most traditional mechanical doorbell system, can improve the compatibility that ringing control device inserts traditional mechanical doorbell system.
Fig. 4 is a schematic structural diagram of a voltage boosting circuit according to an embodiment of the present application, referring to fig. 4, the voltage boosting circuit includes: the device comprises a voltage conversion module, a control module, a switch module and a resistance module.
The voltage conversion module is connected with the transformer and used for converting alternating-current voltage output by the transformer into second direct-current voltage, the control module is powered by the second direct-current voltage and used for controlling the switch module according to the second direct-current voltage, the switch module is in a closed state and used for switching the conduction state of the booster circuit, and the resistance module is arranged according to the working voltage of the ringing control device and used for protecting the booster circuit.
In the embodiment of the application, the resistance value of the resistance module can be set according to the working voltage of the ringing control device, so that when the booster circuit is in a conducting state, the resistance value of the resistor after the booster circuit is connected with the ringing control device in parallel can be set according to the working voltage of the ringing control device, and the voltage division of the ringing control device can reach the working voltage by setting a proper resistance value, so that the ringing control device can normally work.
It should be noted that, in order to ensure the normal operation of the circuit and achieve the function of the protection circuit, the resistance value of the resistor module is usually set to be less than 10 ohms.
Fig. 5 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, and referring to fig. 5, the voltage boosting circuit includes: the circuit comprises a rectifier bridge, a voltage stabilizing module, a control module, a switch module and a resistance module. The rectifier bridge is connected with the transformer and used for converting alternating-current voltage output by the transformer into first direct-current voltage, and the voltage stabilizing module is used for converting the first direct-current voltage output by the rectifier bridge into second direct-current voltage.
It should be noted that the second dc voltage stabilized by the voltage stabilizing module is a stabilized voltage.
In this application embodiment, the voltage of transformer output is alternating voltage, and the operating voltage in the doorbell system is direct current voltage, converts the alternating voltage of transformer output into first direct current voltage through the rectifier bridge in this application, and converts first direct current voltage into the voltage that can supply control module work through voltage stabilizing module.
Fig. 6 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, referring to fig. 6, the voltage boosting circuit includes: the circuit comprises a rectifier bridge, a voltage stabilizing module, a comparison module, a switch driving module, a switch module and a resistance module.
And the switch driving module is used for controlling whether the switch module is conducted or not according to the level value.
In the embodiment of the application, the control module is composed of a switch driving module and a comparison module, the comparison module compares the second direct current voltage with the preset threshold voltage, and controls the switch driving module according to the comparison result, so that the automatic control of the switch module is realized, and manual participation is not needed.
In the embodiment of the present application, the preset threshold voltage is not limited, for example, the preset threshold voltage may be set as the lowest operating voltage of the ringer device, and after the preset threshold voltage is set as the lowest operating voltage of the ringer device, the comparing module and the switch driving module specifically control the switch module as follows. Specifically, the comparison module outputs a high level when determining that the second direct-current voltage is greater than the lowest working voltage of the ringing device, outputs a low level when determining that the second direct-current voltage is less than the lowest working voltage of the ringing device, and the switch driving module controls the switch module to be not conducted according to the high level and controls the switch module to be conducted according to the low level.
In the embodiment of the application, the preset threshold voltage is set to be the lowest working voltage of the ringing device, when the second direct-current voltage is smaller than the lowest working voltage of the ringing device, the comparison module outputs the low level, the switch driving module controls the switch module to be switched on according to the low level, and then the situation that the ringing device does not work is achieved, so that the partial pressure of the ringing device is reduced, the voltages at two ends of the ringing control device can be increased, and the ringing control device can work normally.
In the embodiment of the present application, the comparison module is not limited, for example, the comparison module may be an operational amplifier, or may be a comparator.
Fig. 7 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, referring to fig. 7, the voltage boosting circuit includes: the circuit comprises a rectifier bridge, a voltage stabilizing module, an operational amplifier, a switch driving module, a switch module and a resistance module.
The positive input end of the operational amplifier inputs the preset threshold voltage, the negative input end of the operational amplifier is connected with the voltage stabilizing module, and the output end of the operational amplifier is connected with the switch driving module.
In the embodiment of the present application, the switch module is not limited, and may be, for example, a relay, or an MOS transistor switch circuit.
Fig. 8 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, and referring to fig. 8, the voltage boosting circuit includes: the circuit comprises a rectifier bridge, a voltage stabilizing module, an operational amplifier, a switch driving module, a relay and a resistance module. The input end of the relay is connected with the switch driving module.
In the embodiment of the application, the switch driving module depends on the type of the switch module, and when the switch module is a relay, the switch driving module can be a triode, so that the switch module and the switch driving module can work well in a matched mode.
Fig. 9 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, referring to fig. 9, the voltage boosting circuit includes: rectifier bridge, voltage stabilizing module, operational amplifier, triode, relay and resistance module. The base electrode of the triode is connected with the output end of the operational amplifier, the collector electrode of the triode is connected with the input end of the relay, and the emitter electrode of the triode is connected with the common ground.
It should be noted that the type of the triode is not limited in this application, and may be, for example, a Positive Negative Positive (PNP) triode or a Negative Positive Negative (NPN) triode.
The operation of the boost circuit in the present application will be described in detail below as a complete example.
Fig. 10 is a schematic structural diagram of another voltage boosting circuit according to an embodiment of the present application, referring to fig. 10, the voltage boosting circuit includes: rectifier bridge, voltage stabilizing module, operational amplifier, triode, relay and resistance module.
It should be noted that, when a button for controlling the ringer device is pressed in the ringer control device, the ringer control device is short-circuited, and at this time, the output voltage of the transformer is all applied to the voltage boost circuit, and in order to protect the voltage boost circuit, the resistor module in the voltage boost circuit may be set as a high-power resistor, and during the short-circuit of the circuit, the power of the circuit is consumed.
In the embodiment of the present application, the resistance value of the resistor module is set to be less than 10 ohms.
The following description of the embodiments of the present application will be made taking the transformer output voltage as 16V as an example. Assume that the lowest operating voltage of the ringer is 14V, and the threshold voltage preset by the booster circuit is set to 14V.
In the embodiment of the application, when a button used for controlling the ringing device in the ringing control device is not pressed, the relay is in a closed state, at the moment, the resistance value of a resistor module in a booster circuit is small, so the booster circuit can short the ringing device through the resistor module, the ringing control device is equivalent to a small resistor connected in series in a circuit at the moment, the ringing control device can acquire enough voltage, the acquired voltage is about 16V, the voltage at two ends of the booster circuit is very low at the moment, an operational amplifier and a triode cannot be triggered to work, and the relay is always in the closed state.
In this application embodiment, when the button that is used for controlling the ringing device among the ringing control device is pressed, ringing control device both ends are through inside switch short circuit, at this moment, the 16V voltage of transformer output all adds on booster circuit's resistance module, so the voltage at booster circuit both ends is 16V, because booster circuit preset's threshold voltage is 14V, so operational amplifier outputs high level to the triode, triode drive relay is in the off-state, at this moment, the ringing device is no longer by booster circuit short circuit, and both ends voltage is 16V, the ringing device begins the jingle bell this moment, normal work.
Since the operation response time of the booster circuit is on the order of milliseconds, the resistor block is not burned out by long-term heat generation.
In the embodiment of the application, when a button used for controlling the ringing device in the ringing control device is released, an internal switch in the ringing control device is disconnected, the ringing control device is connected in a loop in series, because a relay in a booster circuit is also in a disconnected state at the moment, the ringing control device and the ringing device are in a serial state, the voltage divided by the ringing control device is assumed to be 6V, the voltage divided by the ringing device is 10V, because the ringing device and the booster circuit are connected in parallel, the voltage detected at two ends of the booster circuit is 10V and is lower than a preset threshold voltage of 14V, therefore, the operational amplifier outputs a low level, the relay is driven to be closed through a triode, at the moment, the ringing control device acquires almost all voltages in the circuit, namely about 16V, and further can work normally.
In the embodiment of the application, when the booster circuit is in the off-state when the ringing control device controls the ringing device to ring, the ringing device can ring normally, when the booster circuit is in the on-state when the ringing control device controls the ringing device not to ring, the resistance of the booster circuit connected with the ringing device in parallel becomes small, the divided voltage of the ringing control device is increased, the voltages at two ends of the ringing control device can be improved, and the voltages at two ends of the ringing control device can reach the working voltage.
In the embodiment of the present application, a doorbell system is further provided, where the doorbell system includes a transformer, a ringing device, a ringing control device, and any one of the above-mentioned boosting circuits, where a primary of the transformer is connected to a mains supply, a secondary of the transformer is connected in series with the ringing control device and the ringing device to form a loop, and the boosting circuit is connected in parallel with the ringing device.
In the embodiment of the application, the ring control device can be internally provided with a power supply circuit.
In this application embodiment, when ringing control device control ringing device jingle bell, ringing control device can't obtain the voltage from the circuit, through at the built-in supply circuit of ringing control device, is applicable to the ringing control device who needs last power supply, solves ringing control device's short time and gets the electricity problem.
In the embodiment of the present application, the power supply circuit built in the ring control device is not limited, and may be, for example, a large-capacity capacitor, a lithium battery, and the like.
In the above embodiments of the present application, when the ringing control device with large power consumption is connected to the conventional mechanical doorbell system, a voltage boosting circuit is introduced, the voltage boosting circuit is connected in parallel with the ringing device in the doorbell system, when the voltage boosting circuit is in the off state when the ringing control device controls the ringing of the ringing device, the ringing device can ring normally, when the voltage boosting circuit is in the on state when the ringing control device controls the ringing device not to ring, the resistance of the voltage boosting circuit connected in parallel with the ringing device becomes smaller, the voltage division of the ringing control device is increased, the voltages at two ends of the ringing control device can be increased, and the ringing control device can perform functions other than controlling the ringing device, therefore, according to the solution of the present application, when the ringing control device with large power consumption is connected to the conventional mechanical doorbell system, the voltage boosting circuit provided in the present application can be connected simultaneously, can improve ringing control device's partial pressure for in the great ringing control device of power consumption can insert most traditional mechanical doorbell system, can improve the compatibility that ringing control device inserts traditional mechanical doorbell system.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The utility model provides a pressure boost circuit, is applied to doorbell system, doorbell system includes transformer, ringing device and ringing control device, its characterized in that, wherein:
the primary side of the transformer is connected with a mains supply, and the secondary side of the transformer is connected with the ringing control device and the ringing device in series to form a loop;
the booster circuit with the ringing device is parallelly connected, the booster circuit is in ringing control device control be in the off-state during the ringing of ringing device, so that the normal ringing of ringing device, the booster circuit is in ringing control device control be in the on-state when the ringing device does not ring, so that the booster circuit with resistance behind the ringing device parallelly connected diminishes, and the partial pressure diminishes, ringing control device partial pressure increase, ringing control device can carry out except control the function outside the ringing of ringing device ringing.
2. The boost circuit of claim 1, wherein the boost circuit comprises a voltage conversion module, a control module, a switch module, and a resistance module;
the voltage conversion module is connected with the transformer and used for converting the alternating-current voltage output by the transformer into a second direct-current voltage;
the control module is powered by the second direct-current voltage and is used for controlling the switch module according to the second direct-current voltage;
the switch module is in a closed state and is used for switching the conduction state of the booster circuit;
and the resistance module is arranged according to the working voltage of the ringing control device and is used for protecting the booster circuit.
3. The voltage boost circuit of claim 2, wherein said voltage conversion module comprises a rectifier bridge and a voltage regulation module;
the rectifier bridge is connected with the transformer and used for converting the alternating-current voltage output by the transformer into a first direct-current voltage;
the voltage stabilizing module is used for converting the first direct-current voltage output by the rectifier bridge into the second direct-current voltage.
4. The boost circuit of claim 3, wherein the control module comprises a switch drive module and a comparison module;
the comparison module is used for comparing the second direct current voltage with a preset threshold voltage and outputting a level value for indicating a comparison result according to the comparison result;
and the switch driving module is used for controlling whether the switch module is conducted or not according to the level value.
5. The voltage boost circuit of claim 4, wherein the preset threshold voltage is a lowest operating voltage of the ringing device;
the comparison module is specifically configured to output a high level when the second dc voltage is greater than the preset threshold voltage, and output a low level when the second dc voltage is less than the preset threshold voltage;
the switch driving module is specifically configured to control the switch module to be non-conductive according to the high level and control the switch module to be conductive according to the low level.
6. The voltage boost circuit of claim 5, wherein said comparison module comprises an operational amplifier;
the positive input end of the operational amplifier inputs the preset threshold voltage common ground, the negative input end of the operational amplifier is connected with the voltage stabilizing module, and the output end of the operational amplifier is connected with the switch driving module.
7. The boost circuit of claim 6, wherein said switch module comprises a relay;
the input end of the relay is connected with the switch driving module.
8. The voltage boost circuit of claim 7, wherein said switch drive module comprises a triode;
the base electrode of the triode is connected with the output end of the operational amplifier, the collector electrode of the triode is connected with the input end of the relay, and the emitter electrode of the triode is connected with the common ground.
9. A doorbell system comprising a transformer, a ringing device and a ringing control device, and further comprising the voltage boost circuit of any one of claims 1 to 8, wherein the primary of the transformer is connected to the mains, the secondary of the transformer is connected in series with the ringing control device and the ringing device to form a loop, and the voltage boost circuit is connected in parallel with the ringing device.
10. The doorbell system of claim 9 wherein the ringer control device has a built-in power supply circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448932.2A CN108183608B (en) | 2017-12-27 | 2017-12-27 | Boosting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711448932.2A CN108183608B (en) | 2017-12-27 | 2017-12-27 | Boosting circuit |
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| Publication Number | Publication Date |
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| CN108183608A CN108183608A (en) | 2018-06-19 |
| CN108183608B true CN108183608B (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711448932.2A Active CN108183608B (en) | 2017-12-27 | 2017-12-27 | Boosting circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111968321B (en) * | 2020-10-20 | 2020-12-25 | 杭州觅睿科技有限公司 | Doorbell system |
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| JPH05114844A (en) * | 1991-10-23 | 1993-05-07 | Fuji Electric Co Ltd | Analog output circuit |
| CN201315623Y (en) * | 2008-12-10 | 2009-09-23 | 徐国权 | Pick-up/hang-up detecting circuit and telephone interface equipment |
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| CN108183608A (en) | 2018-06-19 |
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