CN107834850A - DC linear voltage-stabilized power supply circuit - Google Patents
DC linear voltage-stabilized power supply circuit Download PDFInfo
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- CN107834850A CN107834850A CN201711148867.1A CN201711148867A CN107834850A CN 107834850 A CN107834850 A CN 107834850A CN 201711148867 A CN201711148867 A CN 201711148867A CN 107834850 A CN107834850 A CN 107834850A
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- Prior art keywords
- voltage
- triode
- current source
- stabilizing circuit
- linear voltage
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- 239000003990 capacitor Substances 0.000 claims description 7
- 230000000087 stabilizing effect Effects 0.000 abstract description 14
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
-
- 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
Abstract
The invention discloses a DC linear voltage-stabilized power supply circuit, which comprises: one end of the current source is used for being connected with a voltage source; one end of the voltage stabilizing diode is connected with the other end of the current source, and the other end of the voltage stabilizing diode is grounded; and the adjusting triode is connected in parallel with the two ends of the current source; the collector of the regulating triode is used for being connected with a voltage source, the base of the regulating triode is connected between the current source and the voltage stabilizing diode, and the emitter of the regulating triode is the output end of the voltage stabilizing power supply. The direct-current linear voltage-stabilized power supply circuit is simple in structure and good in response to high frequency; and meanwhile, a current source is introduced to serve as a reference current of the voltage stabilizing diode so as to reduce the influence of factors such as temperature, input voltage and the like.
Description
Technical field
The present invention relates to a kind of power supply, the DC linear voltage-stabilizing circuit formed more particularly to a kind of discrete component.
Background technology
DC linear voltage-stabilizing is typically made up of input and output electric capacity, adjustment pipe, comparing unit.It is said herein linear steady
Voltage source, refer to adjust D.C. regulated power supply of the pipe work under linear condition.Linear stabilized power supply is one more early used
Class D.C. regulated power supply, its output voltage are lower than input voltage；Reaction speed is fast, and output ripple is smaller；Noise caused by work
It is low；Less efficient caloric value is big（Especially large power supply）, increase thermal noise to system indirectly.
It is less efficient in order to solve the problems, such as, there is a kind of voltage-stabilized power supply of conventional low pressure drop（LDO）.In general LDO electricity
Line structure compares that amplifier U1 output is more low then to export VOUT more as shown in figure 1, LDO has used PNP pipe in adjustment tube portion
It is high.When very little is loaded, pressure drop is close to the saturation voltage drop of PNP pipe, only hundreds of or even tens mV.For shown in Fig. 1
Structure, when input VIN changes, because output VOUT is temporarily unchanged, adjustment pipe Q1 Vbe（Base emitter interpolar voltage）Meeting
Change, and then cause Vce（Voltage between collector emitter）Change, finally cause VOUT changes, then can just start anti-
Infeed mechanism.Such lag feedback can not avoid larger ripple on the contrary in the case of input high frequency change.
Therefore, it is necessary to a kind of preferable DC linear voltage-stabilizing of response simple in construction, for high frequency.It can subtract simultaneously
The influences of the factor to output voltage such as few temperature, input voltage.
The content of the invention
A kind of the defects of the invention aims to overcome prior art to exist, there is provided DC linear voltage-stabilizing electricity
Road.In order to realize this purpose, the technical solution used in the present invention is as follows：
According to the first aspect of the embodiment of the present invention, there is provided a kind of DC linear voltage-stabilizing circuit, including：Current source, one
Hold for connecing voltage source；Voltage-regulator diode, its one end connect with the other end of the current source, and the other end is used to be grounded；And
It is attempted by the adjustment triode at the current source both ends；The colelctor electrode of wherein described adjustment triode is used to connect voltage source, base stage
It is connected between the current source and the voltage-regulator diode, transmitting extremely output end of stabilized voltage supply.
According to one embodiment, the current source further comprises：It is sequentially connected in series in the first triode together and
One resistor, wherein the emitter stage of the first triode is used to connect voltage source, colelctor electrode connects with one end of first resistor device, and first
The other end of resistor is used to be grounded；And be sequentially connected in series in second resistance device and the second triode together, wherein second
One end of resistor is used to connect voltage source, and emitter stage of its second triode of another termination；The wherein base stage of the first triode
It is connected between the emitter stage of second resistance device and the second triode, and the base stage of the second triode is connected on the first transistor collector
Between first resistor device；The wherein output end of the current collection of the second triode extremely current source.
According to further embodiment, optionally, described DC linear voltage-stabilizing circuit also includes being connected on AC line
The filter condenser at property voltage-stabilized power supply circuit input side both ends.
According to another embodiment, optionally, described DC linear voltage-stabilizing circuit also includes being connected on AC line
The filter condenser at property voltage-stabilized power supply circuit outlet side both ends.
According to another embodiment, optionally, described DC linear voltage-stabilizing circuit also includes being attempted by voltage stabilizing
The capacitor at diode both ends.
According to still further embodiment, for positive supply mu balanced circuit, the adjustment triode is NPN type triode, and
First triode and second triode are PNP type triode.
According to still another embodiment, the input of the current source is used to connect voltage source, output termination voltage-regulator diode
Negative pole end, the positive terminal of voltage-regulator diode is used to be grounded.
According to yet another embodiment, for negative supply mu balanced circuit, the adjustment triode is PNP type triode, and
First triode and second triode are NPN type triode.
According to other one embodiment, the output end of the current source is used to connect voltage source, input termination voltage-regulator diode
Positive terminal, the negative pole end of voltage-regulator diode is used to be grounded.
According to the second aspect of the embodiment of the present invention, there is provided a kind of electronic product, including according to the embodiment of the present invention first
DC linear voltage-stabilizing circuit described in aspect.
Simple in construction according to the DC linear voltage-stabilizing circuit of the embodiment of the present invention, the response for high frequency is preferable.Together
When introduce reference current of the current source as voltage-regulator diode, to reduce the influence of the factors such as temperature, input voltage.
It is specifically described below in conjunction with accompanying drawing and by embodiment to the present invention, wherein identical or essentially identical portion
Part is indicated using identical reference.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of low pressure drop voltage-stabilized power supply circuit of the prior art；
Fig. 2 is the schematic diagram according to the DC linear voltage-stabilizing circuit of one embodiment of the invention；
Fig. 3 is the VA characteristic curve figure of voltage-regulator diode；
Fig. 4 is a kind of current source circuit figure for being applied to the DC linear voltage-stabilizing circuit according to the embodiment of the present invention；
Fig. 5 is triode BC846 performance diagram；
Fig. 6 is the complete circuit according to the DC linear voltage-stabilizing circuit for having used current source of one embodiment of the invention
Figure；
Fig. 7 is the schematic diagram according to the DC linear voltage-stabilizing circuit for negative supply of one embodiment of the invention；
Fig. 8 is the DC linear voltage-stabilizing circuit for having used current source for negative supply according to one embodiment of the invention
Complete circuit；
Fig. 9 and Figure 10 is respectively that input signal and input signal remove the noise after flip-flop, and wherein input signal is
10.7V or so DC voltage, it is 268mV to be superimposed with peak-to-peak value, and frequency is 1MHz noise signal；
Figure 11 is the unloaded DC voltage exported according to the DC linear voltage-stabilizing circuit test of one embodiment of the invention；
And
Figure 12 is the output ripple voltage according to the DC linear voltage-stabilizing circuit test of one embodiment of the invention.
Embodiment
DC linear voltage-stabilizing refers to adjust D.C. regulated power supply of the pipe work under linear condition, is that a kind of power supply becomes
Circuit is changed, is the important component of electronic system, its function is that the electric energy required for it is provided for electronic circuit.Such as Fig. 2 institutes
Show, be according to the schematic diagram of the DC linear voltage-stabilizing circuit of one embodiment of the invention, including：Current source I, its one end are used
In meeting voltage source VIN；Voltage-regulator diode D1, its one end connect with the other end of the current source I, and the other end is used to be grounded GND；
And it is attempted by the adjustment triode Qa at the current source both ends；The colelctor electrode of wherein described adjustment triode is used to connect voltage source
VIN, base stage are connected between the current source I and the voltage-regulator diode D1, launch extremely output end of stabilized voltage supply VOUT.Wherein
For positive supply mu balanced circuit, the adjustment triode Qa is NPN type triode, and the positive input of current source connects voltage source
VIN；The plus earth of voltage-regulator diode, negative pole connect current source.
In one embodiment, optionally, also including the filter for being connected on DC linear voltage-stabilizing circuit input side both ends
Ripple capacitor, capacitor C1 as shown in Figure 2.
In yet another embodiment, optionally, also including being connected on DC linear voltage-stabilizing circuit output side both ends
Filter condenser, capacitor C2 as shown in Figure 2.
Wherein current source provides constant current I, and according to the characteristic of voltage-regulator diode, D1 both end voltages VD1 is a stationary value.It is defeated
Go out voltage VOUT=VD1-Vbe, wherein Vbe is adjustment triode Qa base emitter interpolar voltage.When VIN changes
Wait, due to diode to flow through electric current I constant, therefore VD1 is constant.Vbe values are the characteristics of triode, unrelated with VIN, therefore,
In the case that VOUT can keep stabilization, especially VIN change frequency higher when VIN changes, there is preferable performance.
Fig. 3 is voltage-regulator diode（Model：BZX84；Manufacturer：NXP）VA characteristic curve, it can be seen that current value with
There is fixed relation in voltage stabilizing value, and when electric current slightly changes within the specific limits, voltage value changes are little.Such as 5.6V voltage stabilizings
The curve of pipe, when electric current IR changes to 10mA from 5mA, voltage stabilizing value only changes about several millivolts accordingly.The characteristic is steady
Effect is more obvious on the higher diode of pressure value.Because the VA characteristic curve of voltage-regulator diode is fixed in any case
, thus the voltage at voltage-regulator diode both ends is also fixed, and determine the size of output voltage.Therefore, can be by voltage stabilizing
Reference voltage of the diode as voltage-stabilized power supply, and can obtain more preferable voltage stabilizing effect from the larger voltage-regulator diode of voltage stabilizing value
Fruit.
The magnitude of voltage of voltage-regulator diode under certain condition influenceed by curent change it is smaller, but in order to obtain more preferable property
Can, use current source rather than current-limiting resistance and voltage-regulator diode according to the DC linear voltage-stabilizing circuit of the embodiment of the present invention
Concatenation.The electric current of so current source is exactly the electric current IR of voltage-regulator diode, when the electric current of current source is stable, voltage-regulator diode
Voltage will be stablized.
It is a kind of current source electricity being applied to according to the DC linear voltage-stabilizing circuit of the embodiment of the present invention shown in Fig. 4
Road, including：It is sequentially connected in series in the first triode Q1 and first resistor device R1 together, wherein the emitter stage of the first triode is used
In meeting voltage source VIN, colelctor electrode connects with one end of first resistor device, and the other end of first resistor device is used to be grounded GND；And
It is sequentially connected in series and is used to connect voltage source in second resistance device R2 together and the second triode Q2, wherein one end of second resistance device
VIN, and the emitter stage of its second triode of another termination；The base stage of wherein the first triode is connected on second resistance device R2 and second
Between triode Q2 emitter stage, and the second triode Q2 base stage is connected on the first triode Q1 colelctor electrode and first resistor device
Between R1；The wherein output end of the current collection of the second triode extremely current source.Wherein it is directed to positive supply mu balanced circuit, described first
Triode and second triode are PNP type triode.Resistance R2 electric current IR2=Vbe1/R2 is flowed through, wherein Vbe1 is three
Pole pipe Q1 base emitter interpolar voltages.Because triode Q1 and Q2 base current can be ignored, therefore, voltage stabilizing two is flowed through
Electric current I=IR2=Vbe1/R2 of pole pipe.
In addition, circuit shown in Fig. 4 still has negative-feedback function.When the current increases, Vbe1 increases, then Ic1（Three poles
Pipe Q1 collector current）Increase, R1 electric resistance partial pressures VR1 increases, then Vbe2 reduces so that Ic2（Triode Q2 colelctor electrode
Electric current）Reduce, that is, the electric current I for flowing through voltage-regulator diode D1 reduces.The current source circuit make use of triode Q1 base emitter
The metastable features of voltage across poles Vbe1, produce stable electric current I.As shown in figure 5, be triode BC846 characteristic curve,
It is it can be seen that controllable in Ic1（By current source, other component parameters determine）In the case of, Vbe1 is only relevant with temperature, therefore
Suitable for the relatively stable use environment of temperature.
In yet another embodiment, optionally, described DC linear voltage-stabilizing circuit also includes being attempted by voltage stabilizing
The capacitor at diode both ends, the complete circuit for having used current source as shown in Figure 6, wherein C1 and C2 be respectively input and
Output end filter condenser, the both ends that capacitor C3 is attempted by voltage-regulator diode D1 are used to further improve the steady of voltage-regulator diode
Pressure value.
Negative supply mu balanced circuit is equally applicable to according to the DC linear voltage-stabilizing circuit of the embodiment of the present invention.Such as Fig. 7
Shown, in one embodiment, for negative supply mu balanced circuit, the adjustment triode Qa is PNP type triode, while electric current
The access direction of source I and voltage-regulator diode D1 in circuit is opposite with shown in Fig. 2.
In addition, as shown in figure 8, in one embodiment, for negative supply mu balanced circuit, the in current source circuit the 1st
Pole pipe and the second triode are NPN type triode.
According to the embodiment of the present invention DC linear voltage-stabilizing circuit test results as shown in Figure 9 and Figure 10, be respectively
Input signal and input signal remove the noise after flip-flop.It can be seen that input signal is 10.7V or so direct current
Pressure, it is 268mV to be superimposed with peak-to-peak value, and frequency is 1MHz noise signal.5.6V voltage-regulator diode has been used as benchmark electricity
Pressure, the DC voltage 5.1V, Figure 12 that Figure 11 show unloaded output show output ripple voltage.It can be seen that output signal is
5.1V or so direct current signal, noise（Ripple voltage）It is reduced to peak-to-peak value 54mV or so, positive effect.
DC linear voltage-stabilizing circuit according to the embodiment of the present invention may be implemented in and applied in various electronic products,
Such as electronic sphygmomanometer etc..To this it is readily appreciated by a person skilled in the art that it is not described here in detail.
Above by specific embodiment, the present invention is described, but the present invention is not limited to these specific implementations
Example.It will be understood by those skilled in the art that various modifications, equivalent substitution, change etc. can also be made to the present invention.But this
A little conversion, all should be within protection scope of the present invention without departing from the spirit of the present invention.In addition, present specification and power
Some terms used in sharp claim, such as " first ", " second " etc., it is not limitation, it is only for be easy to describe.
In addition, " one embodiment ", " another embodiment " described in above many places etc., represents different embodiments, also may be used certainly
So that it completely or partially to be combined in one embodiment.
Claims (10)
- A kind of 1. DC linear voltage-stabilizing circuit, it is characterised in that including：Current source, its one end are used to connect voltage source；Voltage-regulator diode, its one end connect with the other end of the current source, and the other end is used to be grounded；AndIt is attempted by the adjustment triode at the current source both ends；The colelctor electrode of wherein described adjustment triode is used to connect voltage source, and base stage is connected on the current source and the voltage-regulator diode Between, transmitting extremely output end of stabilized voltage supply.
- 2. DC linear voltage-stabilizing circuit as claimed in claim 1, it is characterised in that the current source further comprises：It is sequentially connected in series in the first triode together and first resistor device, wherein the emitter stage of the first triode is used to connect voltage Source, colelctor electrode connect with one end of first resistor device, and the other end of first resistor device is used to be grounded；AndIt is sequentially connected in series and is used to connect voltage in second resistance device and the second triode together, wherein one end of second resistance device Source, and the emitter stage of its second triode of another termination；The base stage of wherein the first triode is connected between the emitter stage of second resistance device and the second triode, and the second triode Base stage is connected between the first transistor collector and first resistor device；The wherein output of the current collection of the second triode extremely current source End.
- 3. DC linear voltage-stabilizing circuit as claimed in claim 1, it is characterised in that also include：It is connected on the filter condenser at DC linear voltage-stabilizing circuit input side both ends.
- 4. DC linear voltage-stabilizing circuit as claimed in claim 1, it is characterised in that also include：It is connected on the filter condenser at DC linear voltage-stabilizing circuit output side both ends.
- 5. DC linear voltage-stabilizing circuit as claimed in claim 1, it is characterised in that also include：It is attempted by the capacitor at voltage-regulator diode both ends.
- 6. the DC linear voltage-stabilizing circuit as any one of claim 1 to 5, it is characterised in that：For positive supply Mu balanced circuit, the adjustment triode is NPN type triode, and first triode and second triode are positive-negative-positive Triode.
- 7. DC linear voltage-stabilizing circuit as claimed in claim 6, it is characterised in that：The input of the current source is used for Voltage source, the negative pole end of output termination voltage-regulator diode are connect, the positive terminal of voltage-regulator diode is used to be grounded.
- 8. the DC linear voltage-stabilizing circuit as any one of claim 1 to 5, it is characterised in that：For negative supply Mu balanced circuit, the adjustment triode is PNP type triode, and first triode and second triode are NPN type Triode.
- 9. DC linear voltage-stabilizing circuit as claimed in claim 8, it is characterised in that：The output end of the current source is used for Voltage source, the positive terminal of input termination voltage-regulator diode are connect, the negative pole end of voltage-regulator diode is used to be grounded.
- A kind of 10. electronic product, it is characterised in that：Including the DC linear voltage-stabilizing any one of claim 1 to 9 Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148867.1A CN107834850A (en) | 2017-11-17 | 2017-11-17 | DC linear voltage-stabilized power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148867.1A CN107834850A (en) | 2017-11-17 | 2017-11-17 | DC linear voltage-stabilized power supply circuit |
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| Publication Number | Publication Date |
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| CN107834850A true CN107834850A (en) | 2018-03-23 |
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| CN201711148867.1A Pending CN107834850A (en) | 2017-11-17 | 2017-11-17 | DC linear voltage-stabilized power supply circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302052A (en) * | 2018-11-12 | 2019-02-01 | 广东乐心医疗电子股份有限公司 | High-voltage starting circuit and switching power supply |
| CN109634339A (en) * | 2018-12-18 | 2019-04-16 | 深圳市华星光电半导体显示技术有限公司 | Voltage-regulating circuit and voltage adjusting method |
| CN110198134A (en) * | 2019-06-06 | 2019-09-03 | 广东工业大学 | A kind of inverter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2536584B1 (en) * | 1975-08-16 | 1977-01-20 | Philips Patentverwaltung | Circuit arrangement of a tube power oscillator |
| CN102176181A (en) * | 2011-01-17 | 2011-09-07 | 深圳市奥瑞那光子技术有限公司 | Constant flow source power supply circuit of point pattern photoelectric smoke detector |
| CN202093507U (en) * | 2011-03-09 | 2011-12-28 | 利尔达科技有限公司 | Slave M-Bus interface circuit of a meter reading system |
| CN103049033A (en) * | 2011-10-12 | 2013-04-17 | 欧司朗股份有限公司 | Constant current source circuit and sampling circuit |
| CN204129556U (en) * | 2014-10-15 | 2015-01-28 | 河南盛泰电机有限公司 | A kind of novel reaction type voltage-stabilized power supply circuit |
| CN204557272U (en) * | 2015-01-30 | 2015-08-12 | 法雷奥汽车内部控制（深圳）有限公司 | Automobile voltage-stabilized power supply circuit |
-
2017
- 2017-11-17 CN CN201711148867.1A patent/CN107834850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2536584B1 (en) * | 1975-08-16 | 1977-01-20 | Philips Patentverwaltung | Circuit arrangement of a tube power oscillator |
| CN102176181A (en) * | 2011-01-17 | 2011-09-07 | 深圳市奥瑞那光子技术有限公司 | Constant flow source power supply circuit of point pattern photoelectric smoke detector |
| CN202093507U (en) * | 2011-03-09 | 2011-12-28 | 利尔达科技有限公司 | Slave M-Bus interface circuit of a meter reading system |
| CN103049033A (en) * | 2011-10-12 | 2013-04-17 | 欧司朗股份有限公司 | Constant current source circuit and sampling circuit |
| CN204129556U (en) * | 2014-10-15 | 2015-01-28 | 河南盛泰电机有限公司 | A kind of novel reaction type voltage-stabilized power supply circuit |
| CN204557272U (en) * | 2015-01-30 | 2015-08-12 | 法雷奥汽车内部控制（深圳）有限公司 | Automobile voltage-stabilized power supply circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302052A (en) * | 2018-11-12 | 2019-02-01 | 广东乐心医疗电子股份有限公司 | High-voltage starting circuit and switching power supply |
| CN109634339A (en) * | 2018-12-18 | 2019-04-16 | 深圳市华星光电半导体显示技术有限公司 | Voltage-regulating circuit and voltage adjusting method |
| CN110198134A (en) * | 2019-06-06 | 2019-09-03 | 广东工业大学 | A kind of inverter |
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Application publication date: 20180323 |