CN204633311U - A kind of quantitatively power-supplying circuit - Google Patents
A kind of quantitatively power-supplying circuit Download PDFInfo
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- CN204633311U CN204633311U CN201520261169.2U CN201520261169U CN204633311U CN 204633311 U CN204633311 U CN 204633311U CN 201520261169 U CN201520261169 U CN 201520261169U CN 204633311 U CN204633311 U CN 204633311U
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Abstract
The utility model discloses a kind of quantitatively power-supplying circuit, comprise chip U1, resistance R1, transformer T, bidirectional triode thyristor VS, triode VT1 and relay K.The utility model aims to provide a kind of circuit structure quantitative power-supplying circuit simple, cheap for manufacturing cost, and the upper load limit exceeding setting when load gets final product auto-breaking, and power-off automatically replies power supply again after a few minutes.
Description
Technical field
The utility model relates to a kind of control circuit, specifically a kind of quantitatively power-supplying circuit.
Background technology
As everyone knows; present every household has all installed electric protective device; breaking down at home circuit or overload makes meeting automatic trip to protect the safety of household electricity; but existing home-use electric protective device all needs hand-reset, namely need manual reset after each tripping operation; suitable trouble; and existing automatically resetting protection circuit is all quite complicated, and manufacture high, cannot promote family.
Utility model content
The purpose of this utility model is to provide the quantitative power-supplying circuit that a kind of circuit structure is simple, intelligence degree is high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of quantitatively power-supplying circuit, comprises chip U1, resistance R1, transformer T, bidirectional triode thyristor VS, triode VT1 and relay K, described chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, relay K contact switch K-1 and 220V alternating current, the 220V alternating current other end is connection transformer T coil L1 respectively, electric capacity C6 and relay K coil, relay K coil other end contact resistance R4, the resistance R4 other end connects the T1 pole of bidirectional triode thyristor VS, and the T2 pole of bidirectional triode thyristor VS connects electric capacity C2, and the electric capacity C2 other end connects chip U1 pin 2 respectively, triode VT1 collector electrode and resistance R1, the resistance R1 other end connects chip U1 pin 4 respectively, chip U1 pin 8, resistance R3, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects the electric capacity C6 other end and diode D4 negative pole respectively, and described chip U1 pin 5 connects the electric capacity C3 other end, and chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R3 other end, described triode VT1 base stage connects diode D2, diode D2 negative pole connects the electric capacity C1 other end and diode D1 negative pole respectively, diode D2 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, the transformer T coil L1 other end connects load RL, and the load RL other end connects the relay K contact switch K-1 other end.
As further program of the utility model: described chip U1 model is NE555.
As the utility model further scheme: described diode D2 and diode D4 is voltage stabilizing didoe.
Compared with prior art, the beneficial effects of the utility model are: the utility model aims to provide a kind of circuit structure quantitative power-supplying circuit simple, cheap for manufacturing cost, the upper load limit exceeding setting when load gets final product auto-breaking, and power-off automatically replies power supply again after a few minutes.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of quantitative power-supplying circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of quantitatively power-supplying circuit, comprises chip U1, resistance R1, transformer T, bidirectional triode thyristor VS, triode VT1 and relay K, described chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, relay K contact switch K-1 and 220V alternating current, the 220V alternating current other end is connection transformer T coil L1 respectively, electric capacity C6 and relay K coil, relay K coil other end contact resistance R4, the resistance R4 other end connects the T1 pole of bidirectional triode thyristor VS, and the T2 pole of bidirectional triode thyristor VS connects electric capacity C2, and the electric capacity C2 other end connects chip U1 pin 2 respectively, triode VT1 collector electrode and resistance R1, the resistance R1 other end connects chip U1 pin 4 respectively, chip U1 pin 8, resistance R3, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects the electric capacity C6 other end and diode D4 negative pole respectively, and described chip U1 pin 5 connects the electric capacity C3 other end, and chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R3 other end, described triode VT1 base stage connects diode D2, diode D2 negative pole connects the electric capacity C1 other end and diode D1 negative pole respectively, diode D2 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, the transformer T coil L1 other end connects load RL, and the load RL other end connects the relay K contact switch K-1 other end.
Chip U1 model is NE555.
Diode D2 and diode D4 is voltage stabilizing didoe.
Operation principle of the present utility model is: refer to Fig. 1, and the utility model circuit is made up of cutting load testing circuit, electronic switch, monostable timing circuit, control relay circuit etc.
Cutting load testing electricity routing transformer T, diode D1, electric capacity C1 and potentiometer RP1 form, in order to the load condition of testing circuit, electronic switch is made up of triode VT1, diode D2 and resistance R1, its examined signal controlling, the timing of the monostable timing circuit be made up of chip U1 and resistance R3, electric capacity C4 etc. is t=1.1*R3*C4.
When electricity consumption overloads, diode D2 is breakdown, triode VT1 saturation conduction, there is set because 2 pin current potentials are low level in chip U1, the high level that 3 pin export makes bidirectional triode thyristor VS conducting, relay K adhesive, contact switch K-1 disconnects, and cuts off alternating current 220V power supply, after t minute, chip U1 output low level, corresponding relay K release, contact switch K-1 closes, and power supply is connected, load RL works, then detects.
Claims (3)
1. a quantitative power-supplying circuit, comprises chip U1, resistance R1, transformer T, bidirectional triode thyristor VS, triode VT1 and relay K, is characterized in that, described chip U1 pin 1 is connection transformer T coil L2 respectively, potentiometer RP1, electric capacity C1, triode VT1 emitter, electric capacity C3, electric capacity C4, electric capacity C5, diode D4 positive pole, relay K contact switch K-1 and 220V alternating current, the 220V alternating current other end is connection transformer T coil L1 respectively, electric capacity C6 and relay K coil, relay K coil other end contact resistance R4, the resistance R4 other end connects the T1 pole of bidirectional triode thyristor VS, and the T2 pole of bidirectional triode thyristor VS connects electric capacity C2, and the electric capacity C2 other end connects chip U1 pin 2 respectively, triode VT1 collector electrode and resistance R1, the resistance R1 other end connects chip U1 pin 4 respectively, chip U1 pin 8, resistance R3, the electric capacity C5 other end and diode D3 negative pole, diode D3 positive pole connects the electric capacity C6 other end and diode D4 negative pole respectively, and described chip U1 pin 5 connects the electric capacity C3 other end, and chip U1 pin 6 connects chip U1 pin 7 respectively, the electric capacity C4 other end and the resistance R3 other end, described triode VT1 base stage connects diode D2, diode D2 negative pole connects the electric capacity C1 other end and diode D1 negative pole respectively, diode D2 positive pole connects potentiometer RP1 slide plate, the potentiometer RP1 other end connection transformer T coil L2 other end, the transformer T coil L1 other end connects load RL, and the load RL other end connects the relay K contact switch K-1 other end.
2. quantitative power-supplying circuit according to claim 1, is characterized in that, described chip U1 model is NE555.
3. quantitative power-supplying circuit according to claim 1, is characterized in that, described diode D2 and diode D4 is voltage stabilizing didoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261169.2U CN204633311U (en) | 2015-04-27 | 2015-04-27 | A kind of quantitatively power-supplying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261169.2U CN204633311U (en) | 2015-04-27 | 2015-04-27 | A kind of quantitatively power-supplying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633311U true CN204633311U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520261169.2U Expired - Fee Related CN204633311U (en) | 2015-04-27 | 2015-04-27 | A kind of quantitatively power-supplying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730957A (en) * | 2016-11-29 | 2017-05-31 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of chemical liquid stock enrichment facility |
-
2015
- 2015-04-27 CN CN201520261169.2U patent/CN204633311U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730957A (en) * | 2016-11-29 | 2017-05-31 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of chemical liquid stock enrichment facility |
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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: 20150909 Termination date: 20160427 |