CN104467155A - Double-power-supply control circuit - Google Patents
Double-power-supply control circuit Download PDFInfo
- Publication number
- CN104467155A CN104467155A CN201310432169.XA CN201310432169A CN104467155A CN 104467155 A CN104467155 A CN 104467155A CN 201310432169 A CN201310432169 A CN 201310432169A CN 104467155 A CN104467155 A CN 104467155A
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- CN
- China
- Prior art keywords
- control circuit
- supply control
- pole double
- throw switch
- loop
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Abstract
The invention provides a double-power-supply control circuit which is simple, reliable, low in cost and small in occupied area. The double-power-supply control circuit is used for controlling two loops, and each part is provided with a main part and a detection part. Each loop comprises a power supply, a fuse protector, a relay, an indicator light, a resistor, a single-pole double-throw switch, a hand switch and a sensitive ampere meter D. When power is supplied to the circuit, the single-pole double-throw switch (W1 or W2) and the detection parts are connected, current passes through the relay (J1 or J2), so that connection of the main parts and breakover of the detection parts are achieved, and the indicator light (L1 or L2) emits light. The single-pole double-throw switch (W1 or W2) and the main parts are connected, the single-pole double-throw switch (W1 or W2) and one end are connected at the same time, the hand switches (QS) are pressed, current passes through a sensitive ampere meter (G), a reading exists on the sensitive ampere meter (G), breakover of a main circuit is achieved, and then normal work is guaranteed. Switching between the two loops is convenient, and the reliability is high. By the adoption of the technical scheme, the double-power-supply control circuit is simple, reliable, low in cost and small in occupied area.
Description
Technical field
The present invention relates to a kind of duplicate supply control circuit.
Background technology
At present, Design and manufacture all more complicated of control circuit, cause cost to rise again and again, and taking up room of electrical equipment also progressively increases.
In existing control circuit, be all generally single supply work, when power supply or power supply wiring break down time, often equipment can quit work, and causes the loss that some cannot be estimated.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of simple and reliable, the duplicate supply control circuit that the low occupation of land of cost is little.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the duplicate supply control circuit that provides, comprises power supply, fuse, relay, indicator light, resistance, single-pole double-throw switch (SPDT), hand switch, sensitive ammeter.
Wherein, described power supply is the power supply of two not homologies, guides two loops of whole circuit.
Further, described fuse is placed between power supply and circuit, shields to circuit.
Further, described relay is settled in each loop, and relay controls this loop and another loop.
Further, each loop is furnished with a test section.
Wherein, described indicator light and resistance are the main composition of test section, and described indicator light plays instruction, and described resistance plays dividing potential drop effect.
Further, described single-pole double-throw switch (SPDT), effect has two kinds, and one is connection two parts, and another kind connects the main portion in each loop and corresponding test section.
Further, described hand switch is the starting switch of whole circuit.
Further, described sensitive ammeter plays the effect of observation circuit electric current.
The advantage that the present invention has and good effect are:: owing to adopting technique scheme, devise a kind of simple and reliable, the duplicate supply control circuit that the low occupation of land of cost is little.
Accompanying drawing illustrates:
Fig. 1 is duplicate supply control circuit schematic diagram.
Embodiment
Be illustrated with regard to specific embodiments of the invention below in conjunction with accompanying drawing.
Figure l is the circuit diagram of duplicate supply control circuit.In Fig. 1, shown UN, NN, NH are loop 1, and wherein UN, NN are main portion, and NH is test section.UR, NR, RH are loop 2, and wherein UR, NR are main portion, and RH is test section.
UN, UR are power supply, and NN, NR are zero potential end; fuse FUI, FU2 are connected between power supply and loop respectively, play protective circuit effect; after the electric current in circuit exceedes setting a period of time, fuse automatically fuses and circuit can be made to disconnect, and protects circuit.
W1, W2 are single-pole double-throw switch (SPDT).When circuit is connected for the first time, moved end is connected to test section, detects loop conducting.Form by indicator light L and divider resistance R in test section, when test section conducting, indicator light L can normally work, and display is normal.
G is sensitive ammeter.No matter left and right circuit which connect, all to carry out decision circuitry according to the instruction of sensitive ammeter and whether normally work.
QS is hand switch, when circuit is all ready, and just can start-up circuit.
When UN holds to electricity, allow single-pole double-throw switch (SPDT) WI and test section close, electric current is through relay J 1, the J1 in loop, the right is closed, the J2 in loop, the right still closes, test section conducting, and the luminous D of indicator light L1 closes single-pole double-throw switch (SPDT) W1 and main portion, simultaneously single-pole double-throw switch (SPDT) W3 and right circuit closed, press hand switch QS, electric current is by sensitive ammeter G, and sensitive ammeter G has registration, represent main circuit conducting, normally work.
When UR holds to electricity, allow single-pole double-throw switch (SPDT) W2 and test section close, due to the right loop not conducting, J1 closes, electric current, through relay J 2, makes the J2 in loop, the left side close, due to the right loop not conducting, J1 closes, test section conducting, and indicator light L2 is luminous.Single-pole double-throw switch (SPDT) W2 and main portion are closed, simultaneously single-pole double-throw switch (SPDT) W3 and left circuit closed, presses hand switch QS, electric current is by sensitive ammeter G, and sensitive ammeter G has registration, represents main circuit conducting, normally works.
Two loops are convenient to switch, and all fast for work, therefore can avoid the drawback of single supply in the past, functional reliability is increased greatly.
Claims (8)
1. duplicate supply control circuit comprises a power supply, fuse, relay, indicator light, resistance, single-pole double-throw switch (SPDT), hand switch, sensitive ammeter, is characterized in that: when circuit gives electricity, and single-pole double-throw switch (SPDT) and test section are closed, electric current is through relay, make the connection of primary part, test section conducting, indicator light is luminous; Operation sheet double-pole double throw switch makes itself and main portion close, and press hand switch, electric current is by sensitive ammeter, and sensitive ammeter G has registration, and represent main circuit conducting, two loop switchs, all can normally work.
2. duplicate supply control circuit according to claim 1, is characterized in that: described power supply is the power supply of two not homologies, guides two loops of whole circuit.
3. duplicate supply control circuit according to claim 1, is characterized in that: described fuse is placed between power supply and circuit, shields to circuit.
4. duplicate supply control circuit according to claim 1, is characterized in that: described relay is settled in each loop, and relay controls this loop and another loop.
5. duplicate supply control circuit according to claim 1, is characterized in that: described single-pole double-throw switch (SPDT), and effect has two kinds, and one is connection two parts, and another kind connects the main portion in each loop and corresponding test section.
6. duplicate supply control circuit according to claim 1, is characterized in that: described indicator light and resistance are the main composition of test section, and described indicator light plays instruction, and described resistance plays dividing potential drop effect.
7. duplicate supply control circuit according to claim 1, is characterized in that: described hand switch is the starting switch of whole circuit.
8. duplicate supply control circuit according to claim 1, is characterized in that: described sensitive ammeter plays the effect of observation circuit electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432169.XA CN104467155A (en) | 2013-09-20 | 2013-09-20 | Double-power-supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432169.XA CN104467155A (en) | 2013-09-20 | 2013-09-20 | Double-power-supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467155A true CN104467155A (en) | 2015-03-25 |
Family
ID=52912730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310432169.XA Pending CN104467155A (en) | 2013-09-20 | 2013-09-20 | Double-power-supply control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104467155A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612136Y (en) * | 2003-04-08 | 2004-04-14 | 郭世忠 | Whole electronic overvoltage, overcurrent protective security unit having light guide warning function |
| CN200979850Y (en) * | 2006-12-13 | 2007-11-21 | 天津市诺尔电气有限公司 | An automatic conversion switch device with SPDT double power |
| CN202997690U (en) * | 2012-12-21 | 2013-06-12 | 中国移动通信集团广东有限公司 | UPS device |
-
2013
- 2013-09-20 CN CN201310432169.XA patent/CN104467155A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612136Y (en) * | 2003-04-08 | 2004-04-14 | 郭世忠 | Whole electronic overvoltage, overcurrent protective security unit having light guide warning function |
| CN200979850Y (en) * | 2006-12-13 | 2007-11-21 | 天津市诺尔电气有限公司 | An automatic conversion switch device with SPDT double power |
| CN202997690U (en) * | 2012-12-21 | 2013-06-12 | 中国移动通信集团广东有限公司 | UPS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |