CN204465937U - A kind of pilot light control circuit - Google Patents
A kind of pilot light control circuit Download PDFInfo
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- CN204465937U CN204465937U CN201520027835.6U CN201520027835U CN204465937U CN 204465937 U CN204465937 U CN 204465937U CN 201520027835 U CN201520027835 U CN 201520027835U CN 204465937 U CN204465937 U CN 204465937U
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Abstract
The utility model relates to a kind of pilot light control circuit, comprise power circuit, ultra-low frequency oscillation circuit and electronic switching circuit, ultra-low frequency oscillation circuit is connected with electronic switching circuit, the series circuit of ultra-low frequency oscillation circuit and electronic switching circuit is in parallel with power circuit, ultra-low frequency oscillation circuit comprises the second resistance, 3rd resistance, 4th resistance, adjustable resistor, photo resistance, 3rd electric capacity and triode, the collector electrode of triode is connected with the junction of the second electric capacity and backward diode by the second resistance, the emitter of triode is by the 4th grounding through resistance, adjustable resistor, the series circuit of the 3rd resistance and photo resistance composition is connected in parallel on the collector and emitter two ends of triode, 3rd Capacitance parallel connection is at the base stage of triode and emitter two ends.A kind of pilot light control circuit of the present utility model, circuit structure is simple, and antijamming capability is strong, adds the feasibility of oscillating circuit, can be widely used in more occasions.
Description
Technical field
The utility model relates to a kind of pilot light control circuit.
Background technology
Indicator light generally needs to control its switch by oscillator, and oscillator, as direct current being converted to the electronic circuit or device with the output of certain frequency ac signal, is widely used in the aspects such as electronics industry, medical treatment, scientific research.Oscillator is used to produce the electronic circuit repeating electric signal, and low-frequency oscillator refers to the oscillator producing frequency AC signal between 0.1Hz to 10Hz.But, along with the extensive utilization of oscillator, how to design a kind of structure simple, and the oscillating circuit that antijamming capability is strong, be a problem needing to solve.
Utility model content
The technical problems to be solved in the utility model is: in order to overcome existing light-operated circuit medium and low frequency oscillating circuit complex structure, the deficiency that antijamming capability is poor, the utility model provides a kind of pilot light control circuit, and circuit structure is simple, and antijamming capability is strong.
The utility model solves the technical scheme that its technical problem adopts: a kind of pilot light control circuit, comprise power circuit, ultra-low frequency oscillation circuit and electronic switching circuit, described ultra-low frequency oscillation circuit is connected with electronic switching circuit, the series circuit of described ultra-low frequency oscillation circuit and electronic switching circuit is in parallel with power circuit, described power circuit comprises the first electric capacity, second electric capacity, voltage stabilizing didoe, backward diode and transformer, the primary side of transformer is by the external alternating current 220V voltage of the first electric capacity in parallel, voltage stabilizing didoe is in parallel with the secondary side of transformer, the series circuit of the second electric capacity and backward diode composition is in parallel with voltage stabilizing didoe, second electric capacity is connected with the positive pole of voltage stabilizing didoe and ground connection, described ultra-low frequency oscillation circuit comprises the second resistance, 3rd resistance, 4th resistance, adjustable resistor, photo resistance, 3rd electric capacity and triode, the collector electrode of triode is connected with the junction of the second electric capacity and backward diode by the second resistance, the emitter of triode is by the 4th grounding through resistance, adjustable resistor, the series circuit of the 3rd resistance and photo resistance composition is connected in parallel on the collector and emitter two ends of triode, 3rd Capacitance parallel connection is at the base stage of triode and emitter two ends, described electronic switching circuit comprises optocoupler, 5th resistance, 6th resistance, thyristor and indicator light, the input of optocoupler is connected in parallel on the two ends of the 4th resistance, thyristor is connected with alternating current 220V voltage with after indicator light series connection, 5th resistance, the series circuit of optocoupler output and the 6th resistance composition is connected in parallel on thyristor two ends, optocoupler output is connected with the gate pole of thyristor with the junction of the 6th resistance.In ultra-low frequency oscillation circuit, when photo resistance senses light, resistance sharply reduces, then transistor base voltage is zero, and the emitter of triode is with regard to output low level; When photo resistance senses light, resistance increases, then, in the series circuit of adjustable resistor, the 3rd resistance and photo resistance composition, series connection dividing potential drop makes transistor base produce voltage, and triode ON, the emitter of triode just exports high level.
Particularly, described voltage stabilizing didoe model is 1N4736.
Particularly, the first described electric capacity is X1 safety electric capacity, and withstand voltage is 400V.
Particularly, described backward diode model is 1N4007.
The beneficial effects of the utility model are, a kind of pilot light control circuit of the present utility model, and circuit structure is simple, and antijamming capability is strong, adds the feasibility of oscillating circuit, can be widely used in more occasions.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the circuit theory diagrams of pilot light control circuit of the present utility model.
1. power circuits in figure, 2. ultra-low frequency oscillation circuit, 3. electronic switching circuit, C 1. first electric capacity, C2. the second electric capacity, C3. the 3rd electric capacity, VS. voltage stabilizing didoe, VD. backward diode, T. transformer, R2. second resistance, R3. the 3rd resistance, R4. the 4th resistance, R5. the 5th resistance, R6. the 6th resistance, Rp. adjustable resistor, RG. photo resistance, Q 1. triode, Q2. optocoupler, Q3. thyristor, L. indicator light.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the light-operated ultra-low frequency oscillation circuit of one of the present utility model, comprise power circuit 1, ultra-low frequency oscillation circuit 2 and electronic switching circuit 3, described ultra-low frequency oscillation circuit 2 is connected with electronic switching circuit 3, the series circuit of described ultra-low frequency oscillation circuit 2 and electronic switching circuit 3 is in parallel with power circuit 1, described power circuit 1 comprises the first electric capacity C1, second electric capacity C2, voltage stabilizing didoe VS, backward diode VD and transformer T, the primary side of transformer T is by the external alternating current 220V voltage of the first electric capacity C1 in parallel, voltage stabilizing didoe VS is in parallel with the secondary side of transformer T, the series circuit that second electric capacity C2 and backward diode VD forms is in parallel with voltage stabilizing didoe VS, second electric capacity C2 is connected with the positive pole of voltage stabilizing didoe VS and ground connection, described ultra-low frequency oscillation circuit 2 comprises the second resistance R2, 3rd resistance R3, 4th resistance R4, adjustable resistor Rp, photo resistance RG, 3rd electric capacity C3 and triode Q1, the collector electrode of triode Q1 is connected with the junction of the second electric capacity C2 and backward diode VD by the second resistance R2, the emitter of triode Q1 is by the 4th resistance R4 ground connection, adjustable resistor Rp, the series circuit that 3rd resistance R3 and photo resistance RG forms is connected in parallel on the collector and emitter two ends of triode Q1, 3rd electric capacity C3 is connected in parallel on base stage and the emitter two ends of triode Q1, described electronic switching circuit 3 comprises optocoupler Q2, 5th resistance R5, 6th resistance R6, thyristor Q3 and indicator light L, the input of optocoupler Q2 is connected in parallel on the two ends of the 4th resistance R4, thyristor Q3 is connected with alternating current 220V voltage after connecting with indicator light L, 5th resistance R5, the series circuit that optocoupler Q2 output and the 6th resistance R6 form is connected in parallel on thyristor Q3 two ends, optocoupler Q2 output is connected with the gate pole of thyristor Q3 with the junction of the 6th resistance R6.Voltage stabilizing didoe VS adopts 1N4736, is used for output dc voltage+5V.First electric capacity C1 is X1 safety electric capacity, and withstand voltage is 400V, is used for filtering, improves the antijamming capability of circuit.Backward diode VD model is 1N4007, for absorbing reverse voltage, improves the stability of circuit.
Power circuit 1, for output dc voltage+5V, is supplied to the electronic devices and components operating voltage inside ultra-low frequency oscillation circuit 2 and electronic switching circuit 3.Ultra-low frequency oscillation circuit 2, according to induction light, exports low and high level, produces oscillator signal.The oscillator signal that electronic switching circuit 3 is exported by ultra-low frequency oscillation circuit 2 controls the secretly bright of indicator light L.
In power circuit 1, external AC voltage source 220V through the first electric capacity C1 filtering, then through the step-down of transformer T, then by voltage stabilizing didoe VS voltage stabilizing, eventually passes the second electric capacity C2 filtering, output dc voltage+5V.
In ultra-low frequency oscillation circuit 2, when photo resistance RG senses light, resistance sharply reduces, then triode Q1 base voltage is zero, and the emitter of triode Q1 is with regard to output low level; When photo resistance RG senses light, resistance increases, then, in the series circuit of adjustable resistor Rp, the 3rd resistance R3 and photo resistance RG composition, series connection dividing potential drop makes triode Q1 base stage produce voltage, triode Q1 conducting, the emitter of triode Q1 just exports high level.
In electronic switching circuit 3, when the emitter of triode Q1 exports high level, optocoupler Q2 conducting, then generator gate electrode current, thyristor Q3 is with regard to conducting, and indicator light L just lights; When the emitter output low level of triode Q1, optocoupler Q2 turns off, then not generator gate electrode current, and thyristor Q3 just turns off, and indicator light L just extinguishes.
Ultra-low frequency oscillation circuit in pilot light control circuit of the present utility model, circuit structure is simple, and the object that antijamming capability is strong, adds the feasibility of oscillating circuit, can be widely used in more occasions.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a pilot light control circuit, it is characterized in that: comprise power circuit (1), ultra-low frequency oscillation circuit (2) and electronic switching circuit (3), described ultra-low frequency oscillation circuit (2) is connected with electronic switching circuit (3), the series circuit of described ultra-low frequency oscillation circuit (2) and electronic switching circuit (3) is in parallel with power circuit (1), described power circuit (1) comprises the first electric capacity (C1), second electric capacity (C2), voltage stabilizing didoe (VS), backward diode (VD) and transformer (T), the primary side of transformer (T) is by the external alternating current 220V voltage of the first electric capacity (C1) in parallel, voltage stabilizing didoe (VS) is in parallel with the secondary side of transformer (T), the series circuit that second electric capacity (C2) and backward diode (VD) form is in parallel with voltage stabilizing didoe (VS), second electric capacity (C2) is connected with the positive pole of voltage stabilizing didoe (VS) and ground connection, described ultra-low frequency oscillation circuit (2) comprises the second resistance (R2), 3rd resistance (R3), 4th resistance (R4), adjustable resistor (Rp), photo resistance (RG), 3rd electric capacity (C3) and triode (Q1), the collector electrode of triode (Q1) is connected with the junction of the second electric capacity (C2) and backward diode (VD) by the second resistance (R2), the emitter of triode (Q1) is by the 4th resistance (R4) ground connection, adjustable resistor (Rp), the series circuit that 3rd resistance (R3) and photo resistance (RG) form is connected in parallel on the collector and emitter two ends of triode (Q1), 3rd electric capacity (C3) is connected in parallel on base stage and the emitter two ends of triode (Q1), described electronic switching circuit (3) comprises optocoupler (Q2), 5th resistance (R5), 6th resistance (R6), thyristor (Q3) and indicator light (L), the input of optocoupler (Q2) is connected in parallel on the two ends of the 4th resistance (R4), thyristor (Q3) is connected with alternating current 220V voltage with after indicator light (L) series connection, 5th resistance (R5), the series circuit that optocoupler (Q2) output and the 6th resistance (R6) form is connected in parallel on thyristor (Q3) two ends, optocoupler (Q2) output is connected with the gate pole of thyristor (Q3) with the junction of the 6th resistance (R6).
2. pilot light control circuit as claimed in claim 1, is characterized in that: described voltage stabilizing didoe (VS) model is 1N4736.
3. pilot light control circuit as claimed in claim 1, is characterized in that: described the first electric capacity (C1) is X1 safety electric capacity, and withstand voltage is 400V.
4. pilot light control circuit as claimed in claim 1, is characterized in that: described backward diode (VD) model is 1N4007.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027835.6U CN204465937U (en) | 2015-01-15 | 2015-01-15 | A kind of pilot light control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027835.6U CN204465937U (en) | 2015-01-15 | 2015-01-15 | A kind of pilot light control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465937U true CN204465937U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520027835.6U Expired - Fee Related CN204465937U (en) | 2015-01-15 | 2015-01-15 | A kind of pilot light control circuit |
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| Country | Link |
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| CN (1) | CN204465937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112423440A (en) * | 2020-11-10 | 2021-02-26 | 珠海银河智能电网有限公司 | Indicating lamp circuit, control method and device, power supply equipment and storage medium |
-
2015
- 2015-01-15 CN CN201520027835.6U patent/CN204465937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112423440A (en) * | 2020-11-10 | 2021-02-26 | 珠海银河智能电网有限公司 | Indicating lamp circuit, control method and device, power supply equipment and storage medium |
| CN112423440B (en) * | 2020-11-10 | 2023-10-20 | 珠海银河智能电网有限公司 | Indicator light circuit, control method and device, power supply equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160115 |
|
| EXPY | Termination of patent right or utility model |