CN107291137B - A kind of adjustable outputting reference source circuit - Google Patents
A kind of adjustable outputting reference source circuit Download PDFInfo
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- CN107291137B CN107291137B CN201710609960.1A CN201710609960A CN107291137B CN 107291137 B CN107291137 B CN 107291137B CN 201710609960 A CN201710609960 A CN 201710609960A CN 107291137 B CN107291137 B CN 107291137B
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- resistance
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/562—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices with a threshold detection shunting the control path of the final control device
Abstract
The invention discloses a kind of adjustable outputting reference source circuits,Including bleeder circuit and feed circuit,Feed circuit acquires power signal using transport and placing device AR1 and AR2 at supply port,Using electric potential signal of its power signal after transport and placing device AR1 and AR2 compare output by voltage-stabiliser tube DZ1 pressure stabilizing,In order to protect circuit,Too high or too low electric potential signal is avoided to damage the circuit,It devises diode D2 and D3 and is total to cathode clamp circuit,On and off of the electric potential signal after clamp circuit as feedback signal control triode Q1~Q3,Voltage and current is adjusted using electric resistance partial pressure principle,To achieve the effect that started with high voltage and constant current,It is larger to avoid difference on effect brought by chip introducing,The problem of at high cost and serious waste of resources,In turn ensure that starting voltage and current is stablized,There are 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 adjustable outputting reference source circuit.
Background technique
Currently, power circuit is very widely used in factory and daily life, but the electricity of the power circuit started
Pressure and electric current are unstable, and the power ratio output power of startup power supply wants several times greater or more than ten times, should guarantee the stabilization of startup power supply,
The stabilization that more guarantee power supply power, solve the problems, such as this now is handled by the controller of core of chip,
Control is stablized, but structure is complicated, and due to using chip as core processor, maintenance difficult, equipment is easy to damage, function
Can the quality of effect depend on the quality of chip, lead to that difference on effect is larger, at high cost and serious waste of resources.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide a kind of adjustable outputs
Reference source circuit, have be skillfully constructed, the characteristic of human oriented design, efficiently solve start-up circuit guarantee starting voltage electricity
Stream stablize on the basis of, avoid use chip for difference on effect brought by core processor larger, at high cost and resource is unrestrained
Take serious problems.
Its technical solution solved is a kind of adjustable outputting reference source circuit, including bleeder circuit and feed circuit, institute
Stating bleeder circuit includes resistance R3, and resistance R3 parallel connection has triode Q1~Q3, triode Q1~Q3 to distinguish series resistance R4, R2
And R1, the conducting of triode Q1 will lead to resistance R3 short circuit, resistance R4 is loop resistance, triode Q2 conducting can make resistance R4 and
R2 parallel connection partial pressure, triode Q3 conducting can be such that resistance R1, R2 and R4 parallel connection divides；
The feed circuit includes transport and placing device AR1, the cathode of the output terminating diode D1 of transport and placing device AR1 and capacitor C2's
One end, the output end and normal phase input end of transport and placing device AR1 are connected with concatenated resistance R5 and capacitor C2, the positive of transport and placing device AR1
Input one end of terminating resistor R6 and the other end of resistance R5, the emitter and resistance R7 of another termination triode Q3 of resistance R6
One end, the anode of one end of anti-phase input terminating resistor R9 of transport and placing device AR1 and the other end of R7 and polar capacitor C3 and
Supply port, the normal phase input end of another termination transport and placing device AR2 of resistance R9, the anti-phase input terminating resistor R8 of transport and placing device AR2
With one end of R10, transport and placing device AR2 output termination voltage-stabiliser tube DZ1 cathode and diode D1 anode and resistance R8 it is another
One end, the anode of voltage-stabiliser tube DZ1 connect the cathode of diode D3, D2 and the base stage of triode Q1, the anode of diode D3 connect power supply+
The cathode of the anode of 20V, diode D2, the other end of resistance R10 and polar capacitor C3, C1 is total to endpoint ground connection.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, the feed circuit acquires power signal using transport and placing device AR1 and AR2 at supply port, is believed using its power
Number through transport and placing device AR1 and AR2 compare output after electric potential signal by voltage-stabiliser tube DZ1 pressure stabilizing, in order to protect circuit, avoid it is excessively high or
Too low electric potential signal damages the circuit, devises diode D2 and D3 and is total to cathode clamp circuit, electric potential signal is through clamp circuit
On and off as feedback signal control triode Q1~Q3 afterwards adjusts voltage and current using electric resistance partial pressure principle, thus
Achieve the effect that started with high voltage and constant current, avoid chip introduce brought by difference on effect is larger, the at high cost and wasting of resources is tight
The problem of weight in turn ensures that starting voltage and current is stablized.
2, bleeder circuit includes resistance R3, and resistance R3 parallel connection has triode Q1~Q3, triode Q1~Q3 to connect respectively
Resistance R4, R2 and R1, the conducting of triode Q1 will lead to resistance R3 short circuit, and resistance R4 is loop resistance, and meeting is connected in triode Q2
Divide resistance R4 and R2 parallel connection, triode Q3 conducting can be such that resistance R1, R2 and R4 parallel connection divides, and reach automatic adjustment voltage electricity
The effect of stream not only can satisfy starting high power requirements, but also can guarantee power stability in power supply process.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of adjustable outputting reference source circuit of the present invention.
Fig. 2 is a kind of feed circuit schematic diagram of adjustable outputting reference source circuit of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 2
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Each exemplary embodiment of the invention is described below with reference to accompanying drawings.
Embodiment one, a kind of adjustable outputting reference source circuit, including bleeder circuit and feed circuit, the bleeder circuit
Including resistance R3, resistance R3 parallel connection has triode Q1~Q3, triode Q1~Q3 to distinguish series resistance R4, R2 and R1, three poles
The conducting of pipe Q1 will lead to resistance R3 short circuit, and resistance R4 is loop resistance, and triode Q2 conducting can make resistance R4 and R2 parallel connection point
Pressure, triode Q3 conducting can be such that resistance R1, R2 and R4 parallel connection divides；The feed circuit includes transport and placing device AR1, transport and placing device AR1
Output terminating diode D1 cathode and capacitor C2 one end, the output end and normal phase input end of transport and placing device AR1 be connected with string
One end of the normal phase input end connecting resistance R6 of the resistance R5 and capacitor C2 of connection, transport and placing device AR1 and the other end of resistance R5, resistance R6
Another termination triode Q3 emitter and resistance R7 one end, one end of the anti-phase input terminating resistor R9 of transport and placing device AR1
It is defeated with the positive of the other end of R7 and the anode and supply port of polar capacitor C3, another termination transport and placing device AR2 of resistance R9
Enter end, the output of one end of anti-phase input the terminating resistor R8 and R10 of transport and placing device AR2, transport and placing device AR2 terminates voltage-stabiliser tube DZ1's
The other end of the anode and resistance R8 of cathode and diode D1, the anode of voltage-stabiliser tube DZ1 connect the cathode and three of diode D3, D2
The base stage of pole pipe Q1, the anode of diode D3 connect power supply+20V, the anode of diode D2, the other end of resistance R10 and polarity electricity
The cathode for holding C3, C1 is total to endpoint ground connection；Feed circuit acquires power signal using transport and placing device AR1 and AR2 at supply port, benefit
With electric potential signal of its power signal after transport and placing device AR1 and AR2 compare output by voltage-stabiliser tube DZ1 pressure stabilizing, in order to protect circuit,
It avoids too high or too low electric potential signal from damaging the circuit, devises diode D2 and D3 and be total to cathode clamp circuit, electric potential signal
On and off after clamp circuit as feedback signal control triode Q1~Q3 adjusts voltage using electric resistance partial pressure principle
Electric current, to achieve the effect that started with high voltage and constant current, avoid chip introduce brought by difference on effect it is larger, at high cost and provide
Source wastes serious problem, in turn ensures that starting voltage and current is stablized.
Embodiment two, on the basis of example 1, the triode Q1 base stage receive the feedback signal of feed circuit, institute
The collector of one end and triode Q1~Q2 for stating resistance R3, R1 is total to endpoint and receives power supply+220V, while intended polarity capacitor C1
Filter off the high-frequency harmonic of power supply+220V, the base stage of another termination triode Q1~Q2 of resistance R3, the emitter of triode Q1 and
One end of resistance R1, the emitter of triode Q2 connect the base stage of triode Q3 and one end of resistance R2, another termination of resistance R4
The other end of resistance R2 and the emitter of triode Q3, the other end of the collector connecting resistance R1 of triode Q3；
When triode Q1 base stage receives the feedback signal of feed circuit, when feedback signal cannot be such that triode Q1 is connected,
Power supply+220V is powered through resistance R5 by output port after resistance R3 and R4 partial pressure；When feedback signal can be such that triode Q1 is connected
When, resistance R3 short circuit, power supply+220V is powered through resistance R4 and R7 by output port, and output power becomes larger；Due to triode Q1's
Emitter and base stage and the base stage of triode Q2 are total to endpoint, when triode Q1 conducting, if triode Q1 base stage that is to say at this time
The current potential of feedback signal can when triode Q2 be also switched on, power supply+220V is after parallel resistance R4 and R2 partial pressure, most afterwards through resistance
R7 connects supply port output；On the basis of triode Q1 and Q2 conducting, the base potential of triode Q3 is also by feedback signal control
System, when triode Q3 is also switched on, power supply+220V most connects feeder ear through resistance R7 afterwards after parallel resistance R1 and R2, R4 partial pressure
Mouth output, output power are adjusted to maximum.
When the present invention is specifically used, a kind of adjustable outputting reference source circuit, including bleeder circuit and feed circuit, it is described
Bleeder circuit includes resistance R3, resistance R3 it is in parallel have triode Q1~Q3, triode Q1~Q3 distinguish series resistance R4, R2 and
R1, the conducting of triode Q1 will lead to resistance R3 short circuit, and resistance R4 is loop resistance, and triode Q2 conducting can make resistance R4 and R2
Parallel connection partial pressure, triode Q3 conducting can be such that resistance R1, R2 and R4 parallel connection divides；Transport and placing device AR1 and AR2 are acquired at supply port
Power signal compares the electric potential signal after exporting by voltage-stabiliser tube DZ1 pressure stabilizing through transport and placing device AR1 and AR2 using its power signal, is
Protection circuit, avoids too high or too low electric potential signal from damaging the circuit, devises diode D2 and D3 and is total to cathode clamper electricity
Road, on and off of the electric potential signal after clamp circuit as feedback signal control triode Q1~Q3, utilizes electric resistance partial pressure
Principle adjusts voltage and current, to achieve the effect that started with high voltage and constant current, avoid chip introduce brought by difference on effect compared with
Greatly, the problem of at high cost and serious waste of resources, in turn ensures that starting voltage and current is stablized, feeds back when triode Q1 base stage receives
The feedback signal of circuit, when feedback signal cannot be such that triode Q1 is connected, power supply+220V is after resistance R3 and R4 partial pressure, warp
Resistance R5 is powered by output port；When feedback signal can be such that triode Q1 is connected, resistance R3 short circuit, power supply+220V is through resistance
R4 and R7 are powered by output port, and output power becomes larger；Due to the emitter and base stage of triode Q1 and the base stage of triode Q2
Endpoint altogether, when triode Q1 conducting, if at this time triode Q1 base stage that is to say feedback signal current potential can when triode Q2
It is also switched on, power supply+220V most connects supply port output through resistance R7 afterwards after parallel resistance R4 and R2 partial pressure；In triode Q1
On the basis of Q2 conducting, the base potential of triode Q3 is also controlled by feedback signal, when triode Q3 is also switched on, power supply+
220V most connects supply port output through resistance R7 afterwards after parallel resistance R1 and R2, R4 partial pressure, and output power is adjusted to maximum.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (1)
1. a kind of adjustable outputting reference source circuit, including bleeder circuit and feed circuit, the bleeder circuit include resistance R3,
It is characterized in that, resistance R3 parallel connection has triode Q1~Q3, triode Q1~Q3 to distinguish series resistance R4, R2 and R1, three poles
The conducting of pipe Q1 will lead to resistance R3 short circuit, and resistance R4 is loop resistance, and triode Q2 conducting can make resistance R4 and R2 parallel connection point
Pressure, triode Q3 conducting can be such that resistance R1, R2 and R4 parallel connection divides；
The feed circuit includes transport and placing device AR1, and the one of the cathode of the output terminating diode D1 of transport and placing device AR1 and capacitor C2
End, the output end and normal phase input end of transport and placing device AR1 are connected with concatenated resistance R5 and capacitor C2, and the positive of transport and placing device AR1 is defeated
Enter one end of terminating resistor R6 and the other end of resistance R5, the emitter of another termination triode Q3 of resistance R6 and resistance R7's
One end, one end of anti-phase input terminating resistor R9 of transport and placing device AR1 and anode and the confession of the other end of R7 and polar capacitor C3
Electric port, the normal phase input end of another termination transport and placing device AR2 of resistance R9, the anti-phase input terminating resistor R8 of transport and placing device AR2 and
One end of R10, transport and placing device AR2 output termination voltage-stabiliser tube DZ1 cathode and diode D1 anode and resistance R8 it is another
End, the anode of voltage-stabiliser tube DZ1 connect the cathode of diode D3, D2 and the base stage of triode Q1, the anode of diode D3 connect power supply+
The cathode of the anode of 20V, diode D2, the other end of resistance R10 and polar capacitor C3, C1 is total to endpoint ground connection；
The triode Q1 base stage receives the feedback signal of feed circuit, one end of described resistance R3, R1 and triode Q1~Q2
Collector be total to endpoint receive power supply+220V, while intended polarity capacitor C1 filter off power supply+220V high-frequency harmonic, resistance R3
Another termination triode Q1~Q2 base stage, the emitter of triode Q1 and one end of resistance R4, the emitter of triode Q2
Connect the base stage of triode Q3 and one end of resistance R2, the transmitting of the other end and triode Q3 of another terminating resistor R2 of resistance R4
Pole, the other end of the collector connecting resistance R1 of triode Q3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710609960.1A CN107291137B (en) | 2017-07-25 | 2017-07-25 | A kind of adjustable outputting reference source circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710609960.1A CN107291137B (en) | 2017-07-25 | 2017-07-25 | A kind of adjustable outputting reference source circuit |
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| CN107291137A CN107291137A (en) | 2017-10-24 |
| CN107291137B true CN107291137B (en) | 2018-11-27 |
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| CN107888177B (en) * | 2017-11-22 | 2020-07-07 | 西安电子科技大学 | Integrated circuit internal bias correction circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696861A (en) * | 2004-05-11 | 2005-11-16 | 精工电子有限公司 | Constant voltage outputting circuit |
| CN205283394U (en) * | 2015-11-05 | 2016-06-01 | 北京动力源科技股份有限公司 | Output voltage adjustable linear stabilizer circuit and have power of this circuit |
| CN205318269U (en) * | 2015-11-05 | 2016-06-15 | 北京动力源科技股份有限公司 | Adjustable linear stabilized power supply and have electrical equipment of this power |
| CN106793279A (en) * | 2016-12-13 | 2017-05-31 | 四川长虹电子部品有限公司 | A kind of adjustable constant current output power module and implementation method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008165757A (en) * | 2006-12-07 | 2008-07-17 | Denso Corp | Power supply circuit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1696861A (en) * | 2004-05-11 | 2005-11-16 | 精工电子有限公司 | Constant voltage outputting circuit |
| CN205283394U (en) * | 2015-11-05 | 2016-06-01 | 北京动力源科技股份有限公司 | Output voltage adjustable linear stabilizer circuit and have power of this circuit |
| CN205318269U (en) * | 2015-11-05 | 2016-06-15 | 北京动力源科技股份有限公司 | Adjustable linear stabilized power supply and have electrical equipment of this power |
| CN106793279A (en) * | 2016-12-13 | 2017-05-31 | 四川长虹电子部品有限公司 | A kind of adjustable constant current output power module and implementation method |
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| CN107291137A (en) | 2017-10-24 |
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Effective date of registration: 20200916 Address after: 518000 2102, building a, wisdom Plaza, Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhongke Lanxun Technology Co.,Ltd. Address before: Xi'an City, Shaanxi province Taibai Road 710071 No. 2 Patentee before: XIDIAN University |