CN204425184U - A kind of two-supply circuit - Google Patents
A kind of two-supply circuit Download PDFInfo
- Publication number
- CN204425184U CN204425184U CN201520168381.4U CN201520168381U CN204425184U CN 204425184 U CN204425184 U CN 204425184U CN 201520168381 U CN201520168381 U CN 201520168381U CN 204425184 U CN204425184 U CN 204425184U
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- triode
- circuit
- diode
- supply
- resistance
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Abstract
The utility model belongs to power circuit technical field, particularly relate to a kind of two-supply circuit, comprise input power J1, out-put supply J2, out-put supply J3, shunt circuit, voltage stabilizing circuit, described shunt circuit comprises switch S 1, light-emitting diode D1, inductance L 1, triode Q1, triode Q2, triode Q3, electric capacity C1, and described voltage stabilizing circuit comprises voltage-stabiliser tube D4, diode D3, diode D2, resistance R1, resistance R2.This patent entirety adopts two-supply circuit, and the reliability comparing single supply circuit working is high, and cost is low, when first out-put supply damages, can use the second out-put supply and power, greatly enhance productivity, avoid causing an immeasurable loss; Adopt the design of voltage stabilizing circuit, utilize pn in voltage-stabiliser tube to tie the characteristic that reverse breakdown state has high value, circuit is played to the effect of voltage stabilizing, and then protective circuit, improve the physical life of circuit.
Description
Technical field
The utility model belongs to power circuit technical field, particularly relates to a kind of two-supply circuit.
Background technology
Instrument kind is a lot, and the power module of each machine is also not quite similar, and along with the quality mind of people to product is more and more higher, the stability of product proposes inevitable requirement.Power module is the basic guarantee that instrument normally works, and therefore in order to make product more stable, improves competitiveness commercially.
But at present, Design and manufacture all more complicated of instrument control circuit, cause cost to rise again and again, and taking up room of electrical equipment also progressively increases.
In existing control circuit, be generally all single supply work, cost is high, poor reliability, and when power supply or power supply wiring break down time, often equipment can quit work, and causes the loss that some cannot be estimated.
Utility model content
The utility model provides a kind of two-supply circuit, and to solve in above-mentioned background technology in existing control circuit, be generally all single supply work, cost is high, the problem of poor reliability.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides a kind of two-supply circuit, it is characterized in that: comprise input power J1, out-put supply J2, out-put supply J3, shunt circuit, voltage stabilizing circuit, described shunt circuit comprises switch S 1, light-emitting diode D1, inductance L 1, triode Q1, triode Q2, triode Q3, electric capacity C1, described voltage stabilizing circuit comprises voltage-stabiliser tube D4, diode D3, diode D2, resistance R1, the one termination switch S 1 of resistance R2, described input power J1, the collector electrode of another termination triode Q2, the emitter of triode Q1, the base stage of described triode Q1 connects one end of electric capacity C1, the anode of voltage-stabiliser tube D4, the negative electrode of diode D2, one end of resistance R1, its collector electrode connects the pin 2 of out-put supply J2, the pin 2 of out-put supply J3 and all ground connection, the base stage of described triode Q2 connects one end of electric capacity C1, the collector electrode of triode Q3, one end of electric capacity C1, its emitter connects one end of inductance L 1, the negative electrode of the other end sending and receiving optical diode D1 of described inductance L 1, the emitter of triode Q3, the anode of described light-emitting diode D1 connects the other end of switch S 1, and the base stage of described triode Q3 connects the negative electrode of voltage-stabiliser tube D4, one end of resistance R2, the anode of diode D3, the negative electrode of another terminating diode D3 of described resistance R2 and all connect the pin 1 of out-put supply J2, the anode of another terminating diode D2 of described resistance R1 and all connect the pin 1 of out-put supply J3.
Described triode Q1 selects the triode of NPN type number.
Described triode Q2 selects the triode of NPN type number.
Described triode Q3 selects the triode of NPN type number.
The beneficial effects of the utility model are:
The input power J1 of 1 this patent is shunted by triode Q2 and triode Q1, through voltage stabilizing circuit, voltage stabilizing is being carried out to separate two power supplys, finally exported away by two out-put supplies J2, J3, overall employing two-supply circuit, the reliability comparing single supply circuit working is high, and cost is low, when first out-put supply damages, the second out-put supply can be used power, greatly enhance productivity, avoid causing an immeasurable loss.
2 this patents are in employing switch S 1 as mains switch, and adopt light-emitting diode D1 as indicator light, be convenient to maintenance, whether convenient for maintaining personal identification power circuit does not work, and takes effective measures and keeps in repair.
3 this patents adopt the design of voltage stabilizing circuit, utilize pn in voltage-stabiliser tube to tie the characteristic that reverse breakdown state has high value, circuit are played to the effect of voltage stabilizing, and then protective circuit, improve the physical life of circuit.
The structure of 4 this patents is simple, and each components and parts are relatively less, low cost of manufacture, can promote the use of on a large scale.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment:
The present embodiment comprises: input power J1, out-put supply J2, out-put supply J3, shunt circuit, voltage stabilizing circuit, shunt circuit comprises switch S 1, light-emitting diode D1, inductance L 1, triode Q1, triode Q2, triode Q3, electric capacity C1, voltage stabilizing circuit comprises voltage-stabiliser tube D4, diode D3, diode D2, resistance R1, the one termination switch S 1 of resistance R2, input power J1, the collector electrode of another termination triode Q2, the emitter of triode Q1, the base stage of triode Q1 connects one end of electric capacity C1, the anode of voltage-stabiliser tube D4, the negative electrode of diode D2, one end of resistance R1, its collector electrode connects the pin 2 of out-put supply J2, the pin 2 of out-put supply J3 and all ground connection, the base stage of triode Q2 connects one end of electric capacity C1, the collector electrode of triode Q3, one end of electric capacity C1, its emitter connects one end of inductance L 1, the negative electrode of the other end sending and receiving optical diode D1 of inductance L 1, the emitter of triode Q3, the anode of light-emitting diode D1 connects the other end of switch S 1, and the base stage of triode Q3 connects the negative electrode of voltage-stabiliser tube D4, one end of resistance R2, the anode of diode D3, the negative electrode of another terminating diode D3 of resistance R2 and all connect the pin 1 of out-put supply J2, the anode of another terminating diode D2 of resistance R1 and all connect the pin 1 of out-put supply J3.
Triode Q1 selects the triode of NPN type number.
Triode Q2 selects the triode of NPN type number.
Triode Q3 selects the triode of NPN type number.
The input power J1 of this patent is shunted by triode Q2 and triode Q1, through voltage stabilizing circuit, voltage stabilizing is being carried out to separate two power supplys, finally exported away by two out-put supplies J2, J3, overall employing two-supply circuit, the reliability comparing single supply circuit working is high, and cost is low, when first out-put supply damages, the second out-put supply can be used power, greatly enhance productivity, avoid causing an immeasurable loss; Adopt the design of voltage stabilizing circuit, utilize pn in voltage-stabiliser tube to tie the characteristic that reverse breakdown state has high value, circuit is played to the effect of voltage stabilizing, and then protective circuit, improve the physical life of circuit.
Utilize technical scheme described in the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection range of the present utility model.
Claims (4)
1. a two-supply circuit, is characterized in that: comprise input power J1, out-put supply J2, out-put supply J3, shunt circuit, voltage stabilizing circuit, described shunt circuit comprises switch S 1, light-emitting diode D1, inductance L 1, triode Q1, triode Q2, triode Q3, electric capacity C1, described voltage stabilizing circuit comprises voltage-stabiliser tube D4, diode D3, diode D2, resistance R1, the one termination switch S 1 of resistance R2, described input power J1, the collector electrode of another termination triode Q2, the emitter of triode Q1, the base stage of described triode Q1 connects one end of electric capacity C1, the anode of voltage-stabiliser tube D4, the negative electrode of diode D2, one end of resistance R1, its collector electrode connects the pin 2 of out-put supply J2, the pin 2 of out-put supply J3 and all ground connection, the base stage of described triode Q2 connects one end of electric capacity C1, the collector electrode of triode Q3, one end of electric capacity C1, its emitter connects one end of inductance L 1, the negative electrode of the other end sending and receiving optical diode D1 of described inductance L 1, the emitter of triode Q3, the anode of described light-emitting diode D1 connects the other end of switch S 1, and the base stage of described triode Q3 connects the negative electrode of voltage-stabiliser tube D4, one end of resistance R2, the anode of diode D3, the negative electrode of another terminating diode D3 of described resistance R2 and all connect the pin 1 of out-put supply J2, the anode of another terminating diode D2 of described resistance R1 and all connect the pin 1 of out-put supply J3.
2. a kind of two-supply circuit according to claim 1, is characterized in that: described triode Q1 selects the triode of NPN type number.
3. a kind of two-supply circuit according to claim 1, is characterized in that: described triode Q2 selects the triode of NPN type number.
4. a kind of two-supply circuit according to claim 1, is characterized in that: described triode Q3 selects the triode of NPN type number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168381.4U CN204425184U (en) | 2015-03-24 | 2015-03-24 | A kind of two-supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168381.4U CN204425184U (en) | 2015-03-24 | 2015-03-24 | A kind of two-supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204425184U true CN204425184U (en) | 2015-06-24 |
Family
ID=53475512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168381.4U Expired - Fee Related CN204425184U (en) | 2015-03-24 | 2015-03-24 | A kind of two-supply circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204425184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803447A (en) * | 2018-08-01 | 2018-11-13 | 合肥阅辞科技有限公司 | Intelligent appliance system |
-
2015
- 2015-03-24 CN CN201520168381.4U patent/CN204425184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108803447A (en) * | 2018-08-01 | 2018-11-13 | 合肥阅辞科技有限公司 | Intelligent appliance system |
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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: 20150624 Termination date: 20160324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |