CN105634456A - Multichannel Schmidt power supply switching system - Google Patents
Multichannel Schmidt power supply switching system Download PDFInfo
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- CN105634456A CN105634456A CN201410586319.7A CN201410586319A CN105634456A CN 105634456 A CN105634456 A CN 105634456A CN 201410586319 A CN201410586319 A CN 201410586319A CN 105634456 A CN105634456 A CN 105634456A
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Abstract
The present invention belongs to the field of the power electronic technology, and especially relate to a multichannel Schmidt power supply switching system. The multichannel Schmidt power supply switching system comprises a first Schmitt circuit, a second Schmitt circuit and a third Schmitt circuit, and realizes automatic switching of six-channel input voltage through adoption of 8 transistors and 6 relays. Compared with a power supply circuit without a multichannel Schmidt power supply switching system, the multichannel Schmidt power supply switching system is able to greatly reduce the pressure drop on a pass transistor so as to reduce the power loss, prevent the pass transistor from damaging caused by too high power and improve the work efficiency of a power supply so as to better adapt the demands of social energy conservation.
Description
Technical field
The invention belongs to electric and electronic technical field, particularly relate to the switching Circuits System of a kind of multichannel Schmidt's power supply.
Background technology
The output voltage of linear DC power supply is adjusted the control of pipe, adjusts the power that pipe bears when exporting low-voltage and high-current very big, and the efficiency not only reducing power supply is also easy to damage adjust pipe simultaneously.
Summary of the invention
The technique effect of the present invention can overcome drawbacks described above, it is provided that a kind of power supply duplex switched system, and it selects input voltage according to the Different Dynamic of output voltage, both can improve the work efficiency of power supply, and adjustment pipe can be protected again not damage because power consumption is excessive simultaneously.
For achieving the above object, the present invention adopts the following technical scheme that it includes the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit, it utilizes 8 transistors and 3 relays to realize the automatic switchover of 6 road input voltages.
Wherein, the first described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R1 and resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, the colelctor electrode of audion Q1 and the base stage of audion Q2 are connected with input+26V by resistance R4 after connecting, the emitter stage of audion Q1 meets the collector connection relay J1 with reference to ground CH+, audion Q2 by resistance R3 after being connected with the emitter stage of audion Q2;
The second described Schmidt circuit includes input+15V and input+26V, input+15V is sequentially connected with the emitter stage of audion Q3, the emitter stage of audion Q4, resistance R6, the base stage of the audion Q3 colelctor electrode by resistance R5 connecting triode Q2, the colelctor electrode of audion Q3 is connected by the colelctor electrode of resistance R7 and audion Q4 after being connected with the other end of resistance R6, resistance R7 sequentially series resistor R8, resistance R9, resistance R8 and resistance R9 junction is connected with the base stage of audion Q5, the colelctor electrode of audion Q5 connects resistance R10 respectively, the base stage of audion Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of audion Q5, the emitter stage of audion Q5 connects with reference to ground CH+ by resistance R11 after being connected with the emitter stage of audion Q6,
The 3rd described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R2 and resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, the colelctor electrode of audion Q7 and the base stage of audion Q8 are connected with input+26V by resistance R4 after connecting, the emitter stage of audion Q7 connects with reference to ground CH+ by resistance R15 after being connected with the emitter stage of audion Q8, the collector connection relay J3 of audion Q8, the colelctor electrode of the audion Q8 base stage by 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. It is 30V to the maximum by applying the pressure drop on this technological adjustment pipe.
Compared with being not added with this close type power supply switch circuit of multichannel, the invention has the beneficial effects as follows: the pressure drop that adjust pipe on is greatly reduced thus reducing power attenuation, avoid adjusting pipe to damage because power is too high, also improve the work efficiency of power supply simultaneously, better adapt to the demand of social energy conservation.
Accompanying drawing explanation
Fig. 1 is the integrated circuit principle schematic of the present invention;
Fig. 2 is the physical circuit principle schematic of the present invention.
Detailed description of the invention
As it is shown in figure 1, the power supply duplex switched system of the present invention includes the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit.
As shown in Figure 2, wherein, the first described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R1 and resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, the colelctor electrode of audion Q1 and the base stage of audion Q2 are connected with input+26V by resistance R4 after connecting, and the emitter stage of audion Q1 meets the collector connection relay J1 with reference to ground CH+, audion Q2 by resistance R3 after being connected with the emitter stage of audion Q2;
The second described Schmidt circuit includes input+15V and input+26V, input+15V is sequentially connected with the emitter stage of audion Q3, the emitter stage of audion Q4, resistance R6, the base stage of the audion Q3 colelctor electrode by resistance R5 connecting triode Q2, the colelctor electrode of audion Q3 is connected by the colelctor electrode of resistance R7 and audion Q4 after being connected with the other end of resistance R6, resistance R7 sequentially series resistor R8, resistance R9, resistance R8 and resistance R9 junction is connected with the base stage of audion Q5, the colelctor electrode of audion Q5 connects resistance R10 respectively, the base stage of audion Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of audion Q5, the emitter stage of audion Q5 connects with reference to ground CH+ by resistance R11 after being connected with the emitter stage of audion Q6,
The 3rd described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R2 and resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, the colelctor electrode of audion Q7 and the base stage of audion Q8 are connected with input+26V by resistance R4 after connecting, the emitter stage of audion Q7 connects with reference to ground CH+ by resistance R15 after being connected with the emitter stage of audion Q8, the collector connection relay J3 of audion Q8, the colelctor electrode of the audion Q8 base stage by 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 this close type power supply switch circuit of multichannel, and including 8 transistors and 3 relays, 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 audion Q3 and Q4 together decide on the on off operating mode of relay J 2. 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 selecting input voltage winding dynamically.
Claims (5)
1. multichannel Schmidt's Power transfer system, it is characterised in that include the first Schmidt circuit, the second Schmidt circuit and the 3rd Schmidt circuit, it utilizes 8 transistors and 3 relays to realize the automatic switchover of 6 road input voltages.
2. multichannel Schmidt's Power transfer system according to claim 1, it is characterized in that, the first described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R1 and resistance R2 of dividing potential drop, the base stage of the junction connecting triode Q1 of resistance R1 and resistance R2, the colelctor electrode of audion Q1 and the base stage of audion Q2 are connected with input+26V by resistance R4 after connecting, the emitter stage of audion Q1 meets the collector connection relay J1 with reference to ground CH+, audion Q2 by resistance R3 after being connected with the emitter stage of audion Q2.
3. multichannel Schmidt's Power transfer system according to claim 2, it is characterized in that, the second described Schmidt circuit includes input+15V and input+26V, input+15V is sequentially connected with the emitter stage of audion Q3, the emitter stage of audion Q4, resistance R6, the base stage of the audion Q3 colelctor electrode by resistance R5 connecting triode Q2, the colelctor electrode of audion Q3 is connected by the colelctor electrode of resistance R7 and audion Q4 after being connected with the other end of resistance R6, resistance R7 sequentially series resistor R8, resistance R9, resistance R8 and resistance R9 junction is connected with the base stage of audion Q5, the colelctor electrode of audion Q5 connects resistance R10 respectively, the base stage of audion Q6, the other end of resistance R10 connects input+26V, the collector connection relay J2 of audion Q5, the emitter stage of audion Q5 is connect with reference to ground CH+ by resistance R11 after being connected with the emitter stage of audion Q6.
4. multichannel Schmidt's Power transfer system according to claim 3, it is characterized in that, the 3rd described Schmidt circuit includes input+15V and input+26V, input+15V concatenates the resistance R2 and resistance R13 of dividing potential drop, the base stage of the junction connecting triode Q7 of resistance R12 and resistance R13, the colelctor electrode of audion Q7 and the base stage of audion Q8 are connected with input+26V by resistance R4 after connecting, the emitter stage of audion Q7 connects with reference to ground CH+ by resistance R15 after being connected with the emitter stage of audion Q8, the collector connection relay J3 of audion Q8, the colelctor electrode of the audion Q8 base stage by resistance R16 connecting triode Q4.
5. the multichannel Schmidt's Power transfer system according to Claims 2 or 3 or 4, it is characterised in that described resistance R2, resistance R9, resistance R13 connect power supply negative terminal respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586319.7A CN105634456A (en) | 2014-10-28 | 2014-10-28 | Multichannel Schmidt power supply switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586319.7A CN105634456A (en) | 2014-10-28 | 2014-10-28 | Multichannel Schmidt power supply switching system |
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| CN105634456A true CN105634456A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410586319.7A Pending CN105634456A (en) | 2014-10-28 | 2014-10-28 | Multichannel Schmidt power supply switching system |
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Citations (3)
| 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 |
| CN103595261A (en) * | 2013-10-31 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | Multipath switching system for power supply |
-
2014
- 2014-10-28 CN CN201410586319.7A patent/CN105634456A/en active Pending
Patent Citations (3)
| 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 |
| CN103595261A (en) * | 2013-10-31 | 2014-02-19 | 江苏绿扬电子仪器集团有限公司 | Multipath switching system for power supply |
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Application publication date: 20160601 |