CN201569676U - Make-and-break device of AC power supply - Google Patents
Make-and-break device of AC power supply Download PDFInfo
- Publication number
- CN201569676U CN201569676U CN 200920260809 CN200920260809U CN201569676U CN 201569676 U CN201569676 U CN 201569676U CN 200920260809 CN200920260809 CN 200920260809 CN 200920260809 U CN200920260809 U CN 200920260809U CN 201569676 U CN201569676 U CN 201569676U
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- circuit
- resistance
- square wave
- integrated package
- power
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Abstract
A make-and-break device of an AC power supply aims to provide a make-and-break device of an AC power supply, which can repeatedly performing make-and-break of the AC power supply. The device comprises a square wave generating circuit, a switch drive circuit, and an output circuit, wherein the square wave generating circuit is connected with the switch drive circuit; the switch drive circuit is connected with the output circuit; the square wave generating circuit generates and outputs square wave with regular time intervals; the switch drive circuit is triggered when the square wave is in high potential, so as to conduct and control the output circuit to output AC power supply; and when the square wave is in low potential, the switch drive circuit is stopped and no AC output exists in the output circuit. The operation is repeatedly conducted to carry out AC load repeated make-and-break performance test to tested equipment.
Description
Technical field
The utility model relates to a kind of appearance that detects defective object, or the equipment testing or check of being used to of response is appearred in defective object, refers to a kind of AC power on-off system especially.
Background technology
Continuous increase along with consumer and device, the also corresponding thereupon increase of the power supply adaptor that matches with it, power supply adaptor needs to carry out the AC and DC load test before dispatching from the factory, in the test of AC load, need break-make AC power repeatedly, power supply adaptor is carried out AC load break-make test repeatedly, but prior art is not carried out the device of break-make AC power repeatedly to it.
Summary of the invention
At the needs in market and the production, the purpose of this utility model is to provide a kind of AC power on-off system that can carry out repeatedly break-make to AC power.
The technical scheme that its technical matters that solves the utility model adopts is: propose a kind of AC power on-off system, it is characterized in that: comprise square wave generation circuit, switch driving circuit, output circuit, square wave generation circuit is connected with switch driving circuit, switch driving circuit is connected with output circuit.
Square wave generation circuit produces and output has timing square wave at interval, this square wave is trigger switch driving circuit admittance controlling output circuit output AC power source when noble potential, during the electronegative potential of this square wave, switch driving circuit ends, and output circuit does not have alternating current output.So constantly carry out the AC load aptitude test of break-make repeatedly for equipment under test repeatedly.
The beneficial effects of the utility model are: break-make AC power repeatedly, can carry out the AC load aptitude test of break-make repeatedly to equipment under test.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is an electrical block diagram of the present utility model.
Fig. 2 is an electrical schematic diagram of the present utility model.
Fig. 3 is an integrated package lm358 internal circuit diagram.
Fig. 4 is an integrated package TL431 internal circuit diagram.
Among Fig. 1: 1 is that square wave generation circuit, 2 is that switch driving circuit, 3 is output circuit.
Embodiment
Referring to accompanying drawing 1, the utility model is characterised in that: comprise square wave generation circuit 1, switch driving circuit 2 and output circuit 3, square wave generation circuit 1 is connected with switch driving circuit 2, switch driving circuit 2 is connected with output circuit 3, and output circuit 3 connects AC power and tested equipment.
Referring to accompanying drawing 2, in embodiment of the present utility model, square wave generation circuit 1 comprises two ic chips 1, IC2,6 resistance R 2, R3, R4, R5, R6, R7, first capacitor C 1 and second capacitor C 2, first ic chip 1 adopts lm358 double operational integrated circuit, second ic chip 2 adopts the adjustable shunting reference source of TL431 three ends (also claim integrated regulator, produced by Texas Instruments); Second resistance R 2 with connect the first integrated package lm358 the 1st and the 2nd pin after the 3rd resistance R 3 is connected, the 4th resistance R 4 with connect the first integrated package lm358 the 1st and the 2nd pin after the 5th resistance R 5K connects, one termination, the first integrated package lm358 the 2nd pin of one end of first capacitor C, 1 positive pole, second electric capacity and the 7th resistance R 7, the other end ground connection of this two capacitor C 1, C2 and this resistance R 7, the 6th resistance R 6 meets the reference utmost point (the control utmost point) R of the first integrated package lm358 the 3rd pin and the second integrated package TL431, and the anode A of the second integrated package TL431 connects power cathode, negative electrode K connects positive source.Switch driving circuit 2 is triode switch driving circuits, includes triode Q1 and base resistance R1, and output circuit 3 is relay circuits, comprises relay K 1 and normally open contact K1-1 thereof.
When 1 pin of first ic chip 1 is exported high level, triode Q1 conducting, relay K 1, its normally open contact K1-1 closure, exchanging has output, loaded work piece.When the 1 pin output low level of IC1, triode Q1 ends, relay K 1 dead electricity, and its normally open contact K1-1 disconnects, the alternating current no-output, load quits work.
Claims (4)
1. AC power on-off system, it is characterized in that: comprise square wave generation circuit (1), switch driving circuit (2) and output circuit (3), square wave generation circuit (1) is connected with switch driving circuit (2), switch driving circuit (2) is connected with output circuit (3), and output circuit (3) connects AC power and tested equipment.
2. according to the AC power on-off system of claim 1, it is characterized in that: square wave generation circuit (1) comprises two integrated packages (IC1, IC2), 6 resistance (R2, R3, R4, R5, R6, R7), first electric capacity (C1) and second electric capacity (C2), first integrated package (IC1) adopts lm358 double operational integrated circuit, and second integrated package (IC2) adopts the adjustable shunting reference source of TL431 three ends; Second resistance (R2) with connect the first integrated package lm358 the 1st and the 2nd pin after the 3rd resistance (R3) is connected, the 4th resistance (R4) with connect the first integrated package lm358 the 1st and the 2nd pin after the 5th resistance (R5) is connected, first electric capacity (C1) positive pole, one termination, the first integrated package lm358 the 2nd pin of one end of second electric capacity (C2) and the 7th resistance R 7, this two electric capacity (C1, C2) and the other end ground connection of this resistance R 7, the 6th resistance (R6) connects the reference utmost point (R) of the first integrated package lm358 the 3rd pin and the second integrated package TL431, and the anode of the second integrated package TL431 (A) connects power cathode, negative electrode (K) connects positive source.
3. according to the AC power on-off system of claim 1, it is characterized in that: switch driving circuit (2) is the triode switch driving circuit, includes triode (Q1) and base resistance (R1).
4. according to the AC power on-off system of claim 1, it is characterized in that: output circuit (3) is a relay circuit, comprises relay (K1) and normally open contact (K1-1) thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920260809 CN201569676U (en) | 2009-11-26 | 2009-11-26 | Make-and-break device of AC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920260809 CN201569676U (en) | 2009-11-26 | 2009-11-26 | Make-and-break device of AC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569676U true CN201569676U (en) | 2010-09-01 |
Family
ID=42661970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920260809 Expired - Fee Related CN201569676U (en) | 2009-11-26 | 2009-11-26 | Make-and-break device of AC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589047A (en) * | 2015-12-22 | 2016-05-18 | 易事特集团股份有限公司 | Power supply aging test circuit |
-
2009
- 2009-11-26 CN CN 200920260809 patent/CN201569676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589047A (en) * | 2015-12-22 | 2016-05-18 | 易事特集团股份有限公司 | Power supply aging test circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20121126 |