CN218103590U - Light-emitting diode control circuit - Google Patents
Light-emitting diode control circuit Download PDFInfo
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- CN218103590U CN218103590U CN202222509517.6U CN202222509517U CN218103590U CN 218103590 U CN218103590 U CN 218103590U CN 202222509517 U CN202222509517 U CN 202222509517U CN 218103590 U CN218103590 U CN 218103590U
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Abstract
The utility model discloses a light emitting diode control circuit relates to the emitting diode field, and this light emitting diode control circuit includes: the commercial power supply module is used for supplying 220V alternating current and outputting the alternating current to the voltage reduction rectification filtering module and the load working module; the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the trigger control module; the trigger control module is used for controlling whether the signal is output or not according to whether the light-emitting diode works or not; the signal amplification module is used for amplifying a signal and triggering the load working module to work; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a whether control emitting diode is luminous to this whether controls phototriode and switches on output signal, and the signal of output ensures intensity after signal amplification module enlargies, and drive load work module work is compared in traditional relay, only needs to change emitting diode or phototriode during the trouble, convenient and practical.
Description
Technical Field
The utility model relates to a light emitting diode field specifically is a light emitting diode control circuit.
Background
Since the human body safety voltage is 36V, high voltage devices often protect users through different protective measures, for example, current isolation is accomplished through an insulating housing; the control of small voltage to large voltage is completed through the relay.
Because the during operation of relay, control switch is closed, and long-term work will lead to switch and kneck not hard up, causes influences such as bad contact, and the relay is supporting with the switch, and is loaded down with trivial details during the repair, if adopt electron device to accomplish little voltage control large voltage, judges the outage position through the electrography during trouble, will effectively solve and repair loaded down with trivial details problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light emitting diode control circuit to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a light emitting diode control circuit comprising:
the commercial power supply module is used for supplying 220V alternating current and outputting the alternating current to the voltage reduction rectification filter module and the load working module;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the trigger control module;
the trigger control module is used for controlling whether the signal is output or not according to whether the light-emitting diode works or not;
the signal amplification module is used for amplifying a signal and triggering the load working module to work;
the load working module is used for working under 220V alternating current when the load is electrified;
the mains supply module is connected with the voltage-reducing rectifying and filtering module and the load working module, the voltage-reducing rectifying and filtering module is connected with the trigger control module, the trigger control module is connected with the signal amplification module, and the signal amplification module is connected with the load working module.
As the utility model discloses further scheme again: the voltage reduction rectification filter module comprises a transformer W, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, an inductor L1, a resistor R1, the input end of the transformer W is connected with the mains supply module, the anode of the diode D1 is connected with one end of the output end of the transformer W, the cathode of the diode D3, the anode of the diode D2 is connected with the other end of the output end of the transformer W, the cathode of the diode D4, the cathode of the diode D2 is connected with the cathode of the diode D1, one end of the capacitor C1 and one end of the inductor L1, the anode of the diode D4 is connected with the anode of the diode D3, the other end of the capacitor C1 and one end of the resistor R1, the other end of the inductor L1 is connected with the other end of the resistor R1, and the trigger control module.
As a further aspect of the present invention: the trigger control module comprises a diode D1, a switch S1, a diode D2, a resistor R2, a capacitor C2, an MOS tube V1, a resistor R3, a triode V2 and a resistor R4, wherein the anode of the diode D1 is connected with one end of the switch S1, the voltage reduction rectification filtering module, the cathode of the diode D1 is connected with the S pole of the MOS tube V1, the D pole of the MOS tube V1 is grounded, the G pole of the MOS tube V1 is connected with one end of the capacitor C2, one end of the resistor R2 and the cathode of the diode D2, the other end of the capacitor C2 is grounded, the other end of the resistor R2 is grounded, the anode of the diode D2 is connected with the other end of the switch S1 and one end of the resistor R3, the other end of the resistor R3 is connected with the collector of the triode V2, the emitter of the triode V2 is connected with one end of the resistor R4, the signal amplification module and the other end of the resistor R4 is grounded.
As a further aspect of the present invention: the signal amplification module comprises a capacitor C3, a resistor R5, a resistor R6 and an amplifier U1, wherein the in-phase end of the amplifier U1 is connected with one end of the capacitor C3 and the trigger control module, the other end of the capacitor C3 is grounded, the inverting end of the amplifier U1 is connected with one end of the resistor R5 and one end of the resistor R6, the other end of the resistor R5 is grounded, and the other end of the resistor R6 is connected with the output end of the amplifier U1 and the load working module.
As a further aspect of the present invention: the load working module comprises a bidirectional controllable silicon Z1 and a load X, the commercial power supply module comprises a live wire L and a zero line N, the live wire L is connected with the first end of the bidirectional controllable silicon Z1, the second end of the bidirectional controllable silicon is connected with one end of the load X, the other end of the load X is connected with the zero line N, and the third end of the bidirectional controllable silicon is connected with the signal amplification module.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a whether control emitting diode is luminous to this whether controls phototriode and switches on output signal, and the signal of output ensures intensity after signal amplification module enlargies, and drive load work module work is compared in traditional relay, only needs to change emitting diode or phototriode during the trouble, convenient and practical.
Drawings
Fig. 1 is a schematic diagram of a led control circuit.
Fig. 2 is a circuit diagram of a led control circuit.
Fig. 3 is a pin diagram of amplifier LM 358.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention based on the embodiments of the present invention.
Referring to fig. 1, a light emitting diode control circuit includes:
the commercial power supply module is used for supplying 220V alternating current and outputting the alternating current to the voltage reduction rectification filtering module and the load working module;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the trigger control module;
the trigger control module is used for controlling whether the signal is output or not according to whether the light-emitting diode works or not;
the signal amplification module is used for amplifying a signal and triggering the load working module to work;
the load working module is used for working under 220V alternating current when the load is electrified;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module and the load working module, the voltage-reducing rectifying and filtering module is connected with the trigger control module, the trigger control module is connected with the signal amplification module, and the signal amplification module is connected with the load working module.
In a specific embodiment: the commercial power supply module introduces a live wire L and a zero line N so as to obtain 220V alternating current, the live wire L is connected with one end of the input end of the transformer W, and the zero line N is connected with the other end of the input end of the transformer.
In this embodiment: referring to fig. 2, the buck rectifying and filtering module includes a transformer W, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, an inductor L1, and a resistor R1, an input end of the transformer W is connected to the commercial power module, one end of an output end of the transformer W is connected to an anode of the diode D1 and a cathode of the diode D3, the other end of the output end of the transformer W is connected to an anode of the diode D2 and a cathode of the diode D4, a cathode of the diode D1 is connected to a cathode of the diode D2, one end of the capacitor C1, and one end of the inductor L1, an anode of the diode D3 is connected to an anode of the diode D4, the other end of the capacitor C1 and one end of the resistor R1, and the other end of the inductor L1 is connected to the other end of the resistor R1, and the trigger control module.
The transformer W converts 220V alternating current into low-voltage alternating current, and a bridge rectifier circuit formed by diodes D1 to D4 converts the alternating current into direct current; and a filter circuit consisting of the capacitor C1, the inductor L1 and the resistor R1 completes filtering.
In this embodiment: referring to fig. 2, the trigger control module includes a diode D1, a switch S1, a diode D2, a resistor R2, a capacitor C2, an MOS transistor V1, a resistor R3, a triode V2, and a resistor R4, wherein an anode of the diode D1 is connected to one end of the switch S1, and the buck rectifier filter module, a cathode of the diode D1 is connected to an S pole of the MOS transistor V1, a D pole of the MOS transistor V1 is grounded, a G pole of the MOS transistor V1 is connected to one end of the capacitor C2, one end of the resistor R2, and a cathode of the diode D2, another end of the capacitor C2 is grounded, another end of the resistor R2 is grounded, an anode of the diode D2 is connected to another end of the switch S1 and one end of the resistor R3, another end of the resistor R3 is connected to a collector of the triode V2, an emitter of the triode V2 is connected to one end of the resistor R4 and the signal amplification module, and another end of the resistor R4 is grounded.
When the switch S1 is not pressed down, the MOS tube V1 (PMOS tube) is conducted, so that the light emitting diode D1 emits light to indicate that the load working module is not controlled to work at present; after the switch S1 is pressed, the light-emitting diode D2 emits light to indicate the load working module to work; meanwhile, the MOS tube V1 is cut off, and the light-emitting diode D1 does not emit light; the light emitting diode D2 emits light to enable the phototriode V2 to be conducted, and a control signal is output to the signal amplification module. In addition, after the switch S1 is pressed, the load working module does not work, a fault area is judged by whether the light emitting diode D2 emits light or not, namely the light emitting diode D2 is in fault, and the fault area is in the phototriode V2 when the light emitting diode D2 emits light.
In this embodiment: referring to fig. 2 and 3, the signal amplification module includes a capacitor C3, a resistor R5, a resistor R6, and an amplifier U1, wherein a non-inverting terminal of the amplifier U1 is connected to one end of the capacitor C3 and the trigger control module, the other end of the capacitor C3 is grounded, an inverting terminal of the amplifier U1 is connected to one end of the resistor R5 and one end of the resistor R6, the other end of the resistor R5 is grounded, and the other end of the resistor R6 is connected to an output terminal of the amplifier U1 and the load working module.
The amplifier U1 is LM358, LM358 is the pair operational amplifier, include two independent, high gain, internal frequency compensated operational amplifiers inside. The amplifier circuit amplifies the output control signal to ensure the signal strength, and outputs the control signal to the load working module with the amplification factor of (R6 + R5)/R5.
In this embodiment: referring to fig. 2, the load working module includes a triac Z1 and a load X, the utility power module includes a live line L and a zero line N, the live line L is connected to a first end of the triac Z1, a second end of the triac is connected to one end of the load X, the other end of the load X is connected to the zero line N, and a third end of the triac is connected to the signal amplification module.
When the third terminal (control electrode) of the bidirectional controllable silicon Z1 receives a signal, the bidirectional controllable silicon Z1 is conducted, so that the load X obtains 220V alternating current to work.
The utility model discloses a theory of operation is: the mains supply module supplies 220V alternating current and outputs the alternating current to the voltage reduction rectification filter module and the load working module, the voltage reduction rectification filter module converts the 220V alternating current into direct current and outputs the direct current to the trigger control module, the trigger control module controls whether a signal is output or not through whether the light emitting diode works, the signal amplification module amplifies the signal and triggers the load working module to work, and the load of the load working module is electrified to work under the 220V alternating current.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A light emitting diode control circuit, characterized by:
the light emitting diode control circuit includes:
the commercial power supply module is used for supplying 220V alternating current and outputting the alternating current to the voltage reduction rectification filtering module and the load working module;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current and outputting the direct current to the trigger control module;
the trigger control module is used for controlling whether the signal is output or not according to whether the light-emitting diode works or not;
the signal amplification module is used for amplifying the signal and triggering the load working module to work;
the load working module is used for working under 220V alternating current when the load is electrified;
the commercial power supply module is connected with the voltage-reducing rectifying and filtering module and the load working module, the voltage-reducing rectifying and filtering module is connected with the trigger control module, the trigger control module is connected with the signal amplification module, and the signal amplification module is connected with the load working module.
2. The LED control circuit according to claim 1, wherein the buck rectifier filter module comprises a transformer W, a diode D1, a diode D2, a diode D3, a diode D4, a capacitor C1, an inductor L1, and a resistor R1, wherein an input terminal of the transformer W is connected to the commercial power module, one end of an output terminal of the transformer W is connected to an anode of the diode D1 and a cathode of the diode D3, the other end of the output terminal of the transformer W is connected to an anode of the diode D2 and a cathode of the diode D4, a cathode of the diode D1 is connected to a cathode of the diode D2, one end of the capacitor C1 and one end of the inductor L1, an anode of the diode D3 is connected to an anode of the diode D4, the other end of the capacitor C1 and one end of the resistor R1, and the other end of the inductor L1 is connected to the other end of the resistor R1 and the trigger control module.
3. The led control circuit of claim 1, wherein the trigger control module comprises a diode D1, a switch S1, a diode D2, a resistor R2, a capacitor C2, a MOS transistor V1, a resistor R3, a transistor V2, and a resistor R4, wherein an anode of the diode D1 is connected to one end of the switch S1, and the buck rectifier filter module, a cathode of the diode D1 is connected to an S electrode of the MOS transistor V1, a D electrode of the MOS transistor V1 is grounded, a G electrode of the MOS transistor V1 is connected to one end of the capacitor C2, one end of the resistor R2, and a cathode of the diode D2, another end of the capacitor C2 is grounded, another end of the resistor R2 is grounded, an anode of the diode D2 is connected to another end of the switch S1 and one end of the resistor R3, another end of the resistor R3 is connected to a collector of the transistor V2, an emitter of the transistor V2 is connected to one end of the resistor R4, and the signal amplification module, and another end of the resistor R4 is grounded.
4. The led control circuit of claim 1, wherein the signal amplification module comprises a capacitor C3, a resistor R5, a resistor R6, and an amplifier U1, wherein a non-inverting terminal of the amplifier U1 is connected to one terminal of the capacitor C3 and the trigger control module, the other terminal of the capacitor C3 is grounded, an inverting terminal of the amplifier U1 is connected to one terminal of the resistor R5 and one terminal of the resistor R6, the other terminal of the resistor R5 is grounded, and the other terminal of the resistor R6 is connected to the output terminal of the amplifier U1 and the load operation module.
5. The LED control circuit of claim 3, wherein the load operation module comprises a triac Z1 and a load X, the mains power module comprises a live line L and a neutral line N, the live line L is connected with a first end of the triac Z1, a second end of the triac is connected with one end of the load X, the other end of the load X is connected with the neutral line N, and a third end of the triac is connected with the signal amplification module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222509517.6U CN218103590U (en) | 2022-09-21 | 2022-09-21 | Light-emitting diode control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222509517.6U CN218103590U (en) | 2022-09-21 | 2022-09-21 | Light-emitting diode control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218103590U true CN218103590U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222509517.6U Active CN218103590U (en) | 2022-09-21 | 2022-09-21 | Light-emitting diode control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218103590U (en) |
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2022
- 2022-09-21 CN CN202222509517.6U patent/CN218103590U/en active Active
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