CN107317474A - A kind of interior power supply circuit of started with high voltage and constant current - Google Patents
A kind of interior power supply circuit of started with high voltage and constant current Download PDFInfo
- Publication number
- CN107317474A CN107317474A CN201710609977.7A CN201710609977A CN107317474A CN 107317474 A CN107317474 A CN 107317474A CN 201710609977 A CN201710609977 A CN 201710609977A CN 107317474 A CN107317474 A CN 107317474A
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- China
- Prior art keywords
- resistance
- triode
- transport
- placing device
- power supply
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of interior power supply circuit of started with high voltage and constant current, including bleeder circuit and feedback circuit, the bleeder circuit includes resistance R10, resistance R10 it is in parallel have triode Q1~Q3, triode Q1~Q3 difference series resistances R1, R2 and R9, triode Q1 conducting can cause resistance R10 short circuits, resistance R1 is loop resistance, triode Q2 conducting resistances R1 and R2 parallel connection partial pressure, triode Q3 conductings can make resistance R1, R2 and R9 partial pressures in parallel, reach the effect for automatically adjusting voltage x current, the feedback circuit gathers power signal using transport and placing device AR1 and AR2 at power output port, triode Q1~Q3 conducting and cut-off is controlled after comparing output through transport and placing device AR1 and AR2 by the use of its power signal as feedback signal, voltage x current is adjusted using electric resistance partial pressure principle, so as to reach the effect of started with high voltage and constant current, avoid the problem of chip introduces high brought cost and serious waste of resources, it in turn ensure that startup voltage x current is stable, there is very big practical value and promotional value.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to a kind of interior power supply circuit of started with high voltage and constant current.
Background technology
At present, the interior power supply circuit of high voltage startup is applied widely in factory and daily life, but high pressure
The voltage and current of the interior power supply circuit of startup is unstable, and the power ratio output power of startup power supply wants several times greater or more than ten times,
The stabilization of startup power supply should be ensured, more to ensure the stabilization of power supply power, this problem is solved now is with chip
Handled for the controller of core, control is stable, but complicated, be core processor, maintenance as a result of chip
Difficulty, equipment is easy to damage, and the quality of its functional effect depends on the quality of chip, causes cost height and the wasting of resources is tight
Weight.
So the present invention provides a kind of new scheme to solve this problem.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the present invention is that providing a kind of high voltage and constant current opens
Dynamic interior power supply circuit, with being skillfully constructed, the characteristic of human oriented design, efficiently solves the inside of started with high voltage and constant current
Power circuit ensure to start voltage x current it is stable on the basis of, it is to avoid use the cost that chip is brought by core processor
High and serious waste of resources problem.
Its technical scheme solved is, a kind of interior power supply circuit of started with high voltage and constant current, including bleeder circuit and feedback
Circuit, the bleeder circuit includes resistance R10, resistance R10 it is in parallel there is triode Q1~Q3, triode Q1~Q3 to connect respectively
Resistance R1, R2 and R9, triode Q1 conducting can cause resistance R10 short circuits, and resistance R1 is loop resistance, triode Q2 electric conductions
R1 and R2 partial pressures in parallel are hindered, triode Q3 conductings can make resistance R1, R2 and R9 partial pressure in parallel；
The triode Q1 base stages receive the feedback signal of feedback circuit, described resistance R10, R9 one end and triode Q1
End points receives power supply+220V to~Q2 colelctor electrode altogether, while intended polarity electric capacity C1 filters off power supply+220V high-frequency harmonic, electricity
Hinder R10 another termination triode Q1~Q2 base stage, triode Q1 emitter stage and resistance R1 one end, triode Q2 hair
Emitter-base bandgap grading connects triode Q3 base stage and resistance R2 one end, the resistance R1 another terminating resistor R2 other end and triode Q3's
Emitter stage, the triode Q3 colelctor electrode connecting resistance R9 other end.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, the feedback circuit is gathering power signal using transport and placing device AR1 and AR2 at power output port, utilizes it
Power signal controls triode Q1~Q3 conducting and cut-off, profit as feedback signal after comparing output through transport and placing device AR1 and AR2
Voltage x current is adjusted with resistance voltage divider principle, so as to reach the effect of started with high voltage and constant current, it is to avoid chip introduces what is brought
The problem of cost height and serious waste of resources, it in turn ensure that startup voltage x current is stable.
2, the bleeder circuit includes resistance R10, resistance R10 it is in parallel have triode Q1~Q3, triode Q1~Q3 points
Other series resistance R1, R2 and R9, triode Q1 conducting can cause resistance R10 short circuits, and resistance R1 is loop resistance, triode Q2
Conducting resistance R1 and R2 parallel connection partial pressure, triode Q3 conductings can make resistance R1, R2 and R9 partial pressure in parallel, reach and automatically adjust voltage
The effect of electric current, can both meet startup high power requirements, and power stability in power supply process is can guarantee that again.
Brief description of the drawings
Fig. 1 is a kind of circuit theory diagrams of the interior power supply circuit of started with high voltage and constant current of the invention.
Fig. 2 is a kind of bleeder circuit schematic diagram of the interior power supply circuit of started with high voltage and constant current of the invention.
Embodiment
For the present invention foregoing and other technology contents, feature and effect, in following cooperation with reference to figures 1 through accompanying drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following examples, is with specification
Accompanying drawing is reference.
Each exemplary embodiment of the present invention is described below with reference to accompanying drawings.
Embodiment one, a kind of interior power supply circuit of started with high voltage and constant current, including bleeder circuit and feedback circuit, described point
Volt circuit includes resistance R10, resistance R10 it is in parallel have triode Q1~Q3, triode Q1~Q3 difference series resistance R1, R2 and
R9, triode Q1 conducting can cause resistance R10 short circuits, and resistance R1 is loop resistance, and triode Q2 conducting resistances R1 and R2 are simultaneously
Join partial pressure, triode Q3 conductings can make resistance R1, R2 and R9 partial pressure in parallel；The triode Q1 base stages receive the anti-of feedback circuit
End points receives power supply+220V altogether for feedback signal, described resistance R10, R9 one end and triode Q1~Q2 colelctor electrode, designs simultaneously
Polar capacitor C1 filters off power supply+220V high-frequency harmonic, resistance R10 another termination triode Q1~Q2 base stage, triode
Q1 emitter stage and resistance R1 one end, triode Q2 emitter stage connect triode Q3 base stage and resistance R2 one end, resistance
The R1 another terminating resistor R2 other end and triode Q3 emitter stage, triode Q3 colelctor electrode connecting resistance R9's is another
End；When triode Q1 base stages receive the feedback signal of feedback circuit, when feedback signal can not turn on triode Q1, power supply+
220V is powered after resistance R10 and R1 partial pressure through resistance R5 by output port；When feedback signal can turn on triode Q1,
Resistance R10 short circuits, power supply+220V is powered through resistance R1 and R5 by output port, and power output becomes big；Due to triode Q1 hair
Emitter-base bandgap grading and base stage and the common end points of triode Q2 base stage, when triode Q1 is turned on, if now triode Q1 base stages that is to say instead
The current potential of feedback signal can when triode Q2 be also switched on, power supply+220V is after parallel resistance R1 and R2 partial pressure, most afterwards through resistance R5
Connect the output of power output port；On the basis of triode Q1 and Q2 conducting, triode Q3 base potential is also by feedback signal
Control, when triode Q3 is also switched on, power supply+220V most connects power through resistance R5 afterwards after parallel resistance R1 and R2, R9 partial pressure
Output port is exported, and power output is adjusted to maximum.
Embodiment two, on the basis of embodiment one, the feedback circuit is using transport and placing device AR1 and AR2 defeated in power
Power signal is gathered at exit port, feedback signal control is used as after comparing output through transport and placing device AR1 and AR2 by the use of its power signal
Triode Q1~Q3 conducting and cut-off, adjusts voltage x current, so as to reach started with high voltage and constant current using electric resistance partial pressure principle
Effect, it is to avoid the problem of chip introduces high brought cost and serious waste of resources, in turn ensure that startup voltage x current is steady
It is fixed；
Transport and placing device AR1 output terminating diode D1 negative pole and electric capacity C2 one end, transport and placing device AR1 output end and just
Phase input is connected with the resistance R3 and electric capacity C2 of series connection, transport and placing device AR1 normal phase input end connecting resistance R6 one end, resistance R6
Another termination triode Q3 emitter stage and resistance R5 one end, transport and placing device AR1 anti-phase input terminating resistor R5's and R7
One end and polar capacitor C5 positive pole, resistance R7 another termination capacitor C4 and resistance R4 one end and transport and placing device AR2's
Normal phase input end, resistance R4 another termination capacitor C3 one end, transport and placing device AR2 anti-phase input terminating resistor R8's is another
End, transport and placing device AR2 output terminating diode D2 negative pole and electric capacity C3, C4 other end, diode D1 and D2 positive pole is total to
End points connects triode Q1 base stage, polar capacitor C1, C5 negative pole and resistance R8 other end ground connection.
When the present invention is specifically used, a kind of interior power supply circuit of started with high voltage and constant current is existed using transport and placing device AR1 and AR2
Power signal is gathered at power output port, feedback is used as after comparing output through transport and placing device AR1 and AR2 by the use of its power signal
Signal control triode Q1~Q3 conducting and cut-off, adjusts voltage x current, when triode Q1 base stages using electric resistance partial pressure principle
The feedback signal of feedback circuit is received, when feedback signal can not turn on triode Q1, power supply+220V is through resistance R10 and R1
After partial pressure, powered through resistance R5 by output port；When feedback signal can turn on triode Q1, resistance R10 short circuits, power supply+
220V is powered through resistance R1 and R5 by output port, and power output becomes big；Emitter stage and base stage and three poles due to triode Q1
The common end points of pipe Q2 base stage, when triode Q1 is turned on, if now triode Q1 base stages that is to say that the current potential of feedback signal can
When triode Q2 be also switched on, it is defeated that power supply+220V through resistance R5 connects power output port afterwards after parallel resistance R1 and R2 partial pressure, most
Go out；On the basis of triode Q1 and Q2 conducting, triode Q3 base potential is also by feedback signal control, as triode Q3
During conducting, power supply+220V most connects the output of power output port, output through resistance R5 afterwards after parallel resistance R1 and R2, R9 partial pressure
Power adjusting is maximum, so as to reach the effect of started with high voltage and constant current, it is to avoid chip introduces that brought cost is high and resource
The problem of wasting serious, in turn ensure that startup voltage x current is stable.
Described above is to combine embodiment further description made for the present invention, it is impossible to assert the present invention
Specific implementation is limited only to this；For belonging to the present invention and for those skilled in the technology concerned, based on skill of the present invention
Under the premise of art scheme thinking, the expansion made and operating method, the replacement of data, should all fall the scope of the present invention it
It is interior.
Claims (2)
1. a kind of interior power supply circuit of started with high voltage and constant current, including bleeder circuit and feedback circuit, the bleeder circuit include
Resistance R10, it is characterised in that resistance R10 it is in parallel have triode Q1~Q3, triode Q1~Q3 difference series resistances R1, R2
And R9, triode Q1 conducting can cause resistance R10 short circuits, resistance R1 is loop resistance, triode Q2 conducting resistances R1 and R2
Partial pressure in parallel, triode Q3 conductings can make resistance R1, R2 and R9 partial pressure in parallel；
The triode Q1 base stages receive the feedback signal of feedback circuit, described resistance R10, R9 one end and triode Q1~Q2
Colelctor electrode end points receives power supply+220V altogether, while intended polarity electric capacity C1 filters off power supply+220V high-frequency harmonic, resistance R10
Another termination triode Q1~Q2 base stage, triode Q1 emitter stage and resistance R1 one end, triode Q2 emitter stage
Connect triode Q3 base stage and resistance R2 one end, the transmitting of resistance R1 another terminating resistor R2 other end and triode Q3
Pole, the triode Q3 colelctor electrode connecting resistance R9 other end.
2. a kind of interior power supply circuit of started with high voltage and constant current according to claim 1, it is characterised in that the feedback circuit
Including transport and placing device AR1, transport and placing device AR1 output terminating diode D1 negative pole and electric capacity C2 one end, transport and placing device AR1 output
End and normal phase input end are connected with the resistance R3 and electric capacity C2 of series connection, transport and placing device AR1 normal phase input end connecting resistance R6 one end,
Resistance R6 another termination triode Q3 emitter stage and resistance R5 one end, transport and placing device AR1 anti-phase input terminating resistor R5
One end and polar capacitor C5 positive pole with R7, resistance R7 another termination capacitor C4 and resistance R4 one end and transport and placing device
AR2 normal phase input end, resistance R4 another termination capacitor C3 one end, transport and placing device AR2 anti-phase input terminating resistor R8's
The other end, transport and placing device AR2 output terminating diode D2 negative pole and electric capacity C3, C4 other end, diode D1 and D2 are just
Extremely it is total to the base stage that end points meets triode Q1, polar capacitor C1, C5 negative pole and resistance R8 other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609977.7A CN107317474A (en) | 2017-07-25 | 2017-07-25 | A kind of interior power supply circuit of started with high voltage and constant current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609977.7A CN107317474A (en) | 2017-07-25 | 2017-07-25 | A kind of interior power supply circuit of started with high voltage and constant current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107317474A true CN107317474A (en) | 2017-11-03 |
Family
ID=60178967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710609977.7A Pending CN107317474A (en) | 2017-07-25 | 2017-07-25 | A kind of interior power supply circuit of started with high voltage and constant current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317474A (en) |
-
2017
- 2017-07-25 CN CN201710609977.7A patent/CN107317474A/en active Pending
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Application publication date: 20171103 |
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| WD01 | Invention patent application deemed withdrawn after publication |