CN103595261B - Power supply duplex switched system - Google Patents
Power supply duplex switched system Download PDFInfo
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- CN103595261B CN103595261B CN201310534298.XA CN201310534298A CN103595261B CN 103595261 B CN103595261 B CN 103595261B CN 201310534298 A CN201310534298 A CN 201310534298A CN 103595261 B CN103595261 B CN 103595261B
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Abstract
This close type power supply switch circuit of a kind of multichannel that the present invention proposes, belongs to electric and electronic technical field.Power supply duplex switched system of the present invention, comprise the first Schmidt circuit, second Schmidt circuit and the 3rd Schmidt circuit, wherein, the first described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R1 and the resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, the second described Schmidt circuit comprises input+15V and input+26V, the emitter of input+15V connecting triode Q3 successively, the emitter of triode Q4, resistance R6, the base stage of triode Q3 passes through the collector electrode of resistance R5 connecting triode Q2.The present invention greatly reduces the pressure drop on Correctional tube thus reduces power loss, avoids Correctional tube to damage because power is too high.
Description
Technical field
This close type power supply switch circuit of a kind of multichannel that the present invention proposes, belongs to electric and electronic technical field.
Background technology
The output voltage of linear DC power supply is adjusted the control of pipe, and the power that Correctional tube bears when output LOW voltage big current is very large, and the efficiency not only reducing power supply is also easy to damage Correctional tube simultaneously.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defect, provides a kind of power supply duplex switched system, and its Different Dynamic according to output voltage selects input voltage, both can improve the operating efficiency of power supply, Correctional tube can be protected again not damage because power consumption is excessive simultaneously.
For achieving the above object, the present invention adopts following technical scheme: it comprises the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit,
Wherein, the first described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R1 and the resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, be connected with input+26V by resistance R4 after the collector electrode of triode Q1 and the base stage of triode Q2 connect, the collector connection relay J1 with reference to ground CH+, triode Q2 is met by resistance R3 after the emitter of triode Q1 is connected with the emitter of triode Q2;
The second described Schmidt circuit comprises input+15V and input+26V, the emitter of input+15V connecting triode Q3 successively, the emitter of triode Q4, resistance R6, the base stage of triode Q3 passes through the collector electrode of resistance R5 connecting triode Q2, the collector electrode of triode Q3 is connected the rear resistance R7 that passes through and is connected with the collector electrode of triode Q4 with the other end of resistance R6, resistance R7 is series resistor R8 in turn, resistance R9, resistance R8 is connected with the base stage of triode Q5 with resistance R9 junction, the collector electrode contact resistance R10 respectively of triode Q5, the base stage of triode Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of triode Q6, connect with reference to ground CH+ by resistance R11 after the emitter of triode Q5 is connected with the emitter of triode Q6,
The 3rd described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R12 and the resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, be connected with input+26V by resistance R14 after the collector electrode of triode Q7 and the base stage of triode Q8 connect, connect with reference to ground CH+ by resistance R15 after the emitter of triode Q7 is connected with the emitter of triode Q8, the collector electrode of the collector connection relay J3 of triode Q8, triode Q8 passes through the base stage of resistance R16 connecting triode Q4;
Described resistance R2, resistance R9, resistance R13 connect power supply negative terminal respectively.
Linear DC power supply maximum output voltage is 100V.The present invention utilizes 8 transistors and 3 relays to realize the automatic switchover of 6 road input voltages.When output voltage is 0V-16V, select winding 28V, when output voltage is 16V-33V, select winding 45V, when output voltage is 33V-50V, select winding 62V, when output voltage is 50V-66V, select winding 79V, when output voltage is 66V-83V, select winding 95V, when output voltage is 83V-100V, select winding 112V.30V is to the maximum by the pressure drop of applying on this technological adjustment pipe.
With do not add compared with this close type power supply switch circuit of multichannel, the invention has the beneficial effects as follows: greatly reduce the pressure drop on Correctional tube thus reduce power loss, avoid Correctional tube to damage because power is too high, also improve the operating efficiency of power supply simultaneously, better adapt to the demand of social energy conservation.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present invention.
Embodiment
As shown in Figure 1, power supply duplex switched system of the present invention comprises the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit,
Wherein, wherein, the first described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R1 and the resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, is connected with input+26V by resistance R4 after the base stage of the collector electrode of triode Q1 and triode Q2 connects, by the collector connection relay J1 of resistance R3 with connecing reference CH+, triode Q2 after the emitter of triode Q1 is connected with the emitter of triode Q2;
The second described Schmidt circuit comprises input+15V and input+26V, the emitter of input+15V connecting triode Q3 successively, the emitter of triode Q4, resistance R6, the base stage of triode Q3 passes through the collector electrode of resistance R5 connecting triode Q2, the collector electrode of triode Q3 is connected the rear resistance R7 that passes through and is connected with the collector electrode of triode Q4 with the other end of resistance R6, resistance R7 is series resistor R8 in turn, resistance R9, resistance R8 is connected with the base stage of triode Q5 with resistance R9 junction, the collector electrode contact resistance R10 respectively of triode Q5, the base stage of triode Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of triode Q6, connect with reference to ground CH+ by resistance R11 after the emitter of triode Q5 is connected with the emitter of triode Q6,
The 3rd described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R12 and the resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, be connected with input+26V by resistance R14 after the collector electrode of triode Q7 and the base stage of triode Q8 connect, connect with reference to ground CH+ by resistance R15 after the emitter of triode Q7 is connected with the emitter of triode Q8, the collector electrode of the collector connection relay J3 of triode Q8, triode Q8 passes through the base stage of resistance R16 connecting triode Q4;
Described resistance R2, resistance R9, resistance R13 connect power supply negative terminal respectively.
The present embodiment provides a kind of multichannel this close type power supply switch circuit, comprises 8 transistors and 3 relays, and divider resistance R1 and R2 determines the on off operating mode of relay J 1; Divider resistance R12 and R13 determines the on off operating mode of relay J 3; Divider resistance R6, R7, R8 and R9 and triode Q3 and Q4 determine the on off operating mode of relay J 2 jointly.CH+ is the reference ground of+15V and+26V simultaneously.
The core of this circuit is for determining each divider resistance value, and when the pressure reduction between CH+ and CH-changes, relay J 1, relay J 2 and relay J 3 can be operated in different on off states, thus dynamic selection input voltage winding.
Claims (1)
1. a power supply duplex switched system, is characterized in that, comprises the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit,
Wherein, the first described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R1 and the resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, be connected with input+26V by resistance R4 after the collector electrode of triode Q1 and the base stage of triode Q2 connect, the collector connection relay J1 with reference to ground CH+, triode Q2 is met by resistance R3 after the emitter of triode Q1 is connected with the emitter of triode Q2;
The second described Schmidt circuit comprises input+15V and input+26V, the emitter of input+15V connecting triode Q3 successively, the emitter of triode Q4, resistance R6, the base stage of triode Q3 passes through the collector electrode of resistance R5 connecting triode Q2, the collector electrode of triode Q3 is connected the rear resistance R7 that passes through and is connected with the collector electrode of triode Q4 with the other end of resistance R6, resistance R7 is series resistor R8 in turn, resistance R9, resistance R8 is connected with the base stage of triode Q5 with resistance R9 junction, the collector electrode contact resistance R10 respectively of triode Q5, the base stage of triode Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of triode Q6, connect with reference to ground CH+ by resistance R11 after the emitter of triode Q5 is connected with the emitter of triode Q6,
The 3rd described Schmidt circuit comprises input+15V and input+26V, input+15V is connected in series resistance R12 and the resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, be connected with input+26V by resistance R14 after the collector electrode of triode Q7 and the base stage of triode Q8 connect, connect with reference to ground CH+ by resistance R15 after the emitter of triode Q7 is connected with the emitter of triode Q8, the collector electrode of the collector connection relay J3 of triode Q8, triode Q8 passes through the base stage of resistance R16 connecting triode Q4;
Described resistance R2, resistance R9, resistance R13 connect power supply negative terminal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534298.XA CN103595261B (en) | 2013-10-31 | 2013-10-31 | Power supply duplex switched system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534298.XA CN103595261B (en) | 2013-10-31 | 2013-10-31 | Power supply duplex switched system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103595261A CN103595261A (en) | 2014-02-19 |
| CN103595261B true CN103595261B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310534298.XA Expired - Fee Related CN103595261B (en) | 2013-10-31 | 2013-10-31 | Power supply duplex switched system |
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| Country | Link |
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| CN (1) | CN103595261B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634456A (en) * | 2014-10-28 | 2016-06-01 | 江苏绿扬电子仪器集团有限公司 | Multichannel Schmidt power supply switching system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1114745A (en) * | 1964-07-25 | 1968-05-22 | Schmidt Gebr Metallwarenfab | Improvements in pulse generators |
| CN101212214A (en) * | 2006-12-28 | 2008-07-02 | 松下电器产业株式会社 | Triangle wave generating circuit and PWM modulation circuit |
-
2013
- 2013-10-31 CN CN201310534298.XA patent/CN103595261B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1114745A (en) * | 1964-07-25 | 1968-05-22 | Schmidt Gebr Metallwarenfab | Improvements in pulse generators |
| CN101212214A (en) * | 2006-12-28 | 2008-07-02 | 松下电器产业株式会社 | Triangle wave generating circuit and PWM modulation circuit |
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| Publication number | Publication date |
|---|---|
| CN103595261A (en) | 2014-02-19 |
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| CF01 | Termination of patent right due to non-payment of annual fee |