CN208861199U - A kind of multilevel decompression voltage regulator circuit with clamper function - Google Patents
A kind of multilevel decompression voltage regulator circuit with clamper function Download PDFInfo
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- CN208861199U CN208861199U CN201821316252.5U CN201821316252U CN208861199U CN 208861199 U CN208861199 U CN 208861199U CN 201821316252 U CN201821316252 U CN 201821316252U CN 208861199 U CN208861199 U CN 208861199U
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Abstract
A kind of multilevel decompression voltage regulator circuit with clamper function, including input circuit, clamp circuit, DC decompression voltage regulator circuit and linear voltage-stabilizing circuit, input circuit is for providing the input voltage of clamp circuit and DC decompression voltage regulator circuit, clamp circuit is for guaranteeing that the output voltage VO UT Non voltage output when input voltage is lower than low pressure threshold VINL, DC decompression voltage regulator circuit provide input voltage to linear voltage-stabilizing circuit；Linear voltage-stabilizing circuit is for exporting stable VOUT voltage.The utility model is ensured using clamp circuit when input voltage is higher than low pressure threshold VINL, output voltage VO UT just has voltage output after DC decompression voltage regulator circuit and linear voltage-stabilizing circuit lowering and stabilizing blood pressure, output voltage VO UT, which is effectively guaranteed, can accurately export required load voltage value, avoid because input voltage it is too low caused by SCM program run-time error, it is ensured that single-chip microcontroller operates in correct status always.
Description
Technical field
The utility model belongs to electronic circuit technology field, is related to the pressure stabilizing of single-chip microcontroller voltage, is a kind of band clamper function
Multilevel decompression voltage regulator circuit.
Background technique
With the development of electronic technology especially integrated circuit, single-chip microcontroller using increasingly extensive, be especially widely applied
In fields such as instrument and meter, household electrical appliance, medical equipment, aerospace, the intelligent management of special equipment and process control.With
The continuous propulsion of national energy conservation and emission reduction policy, it is solar powered to be increasingly becoming using more universal power supply mode.But too
Positive energy plate end voltage is to rise to maximum open circuit voltage from zero with intensity of illumination, when solar panels end voltage is lower, the voltage
It powers again to single-chip microcontroller after decompression voltage regulator, the voltage can be lower than the voltage rating VCC of single-chip microcontroller sometimes, so as to cause
Single-chip microcontroller internal processes run disorder and external sampling voltage differences, cause product that cannot work in normal condition.In face of this
One status needs corresponding design to guarantee the normal work of single-chip microcontroller.
Summary of the invention
Problem to be solved in the utility model is: needing to design a kind of voltage regulator circuit, it is ensured that is supplied to the voltage of single-chip microcontroller
For the voltage rating of single-chip microcontroller, it is ensured that single-chip microcontroller works in normal condition.
The technical solution of the utility model are as follows: a kind of multilevel decompression voltage regulator circuit with clamper function, including input circuit,
Clamp circuit, DC decompression voltage regulator circuit and linear voltage-stabilizing circuit, external input voltage VIN input clamper electricity by input circuit
Road and DC decompression voltage regulator circuit, the output of linear voltage-stabilizing circuit are output voltage VO UT, and clamp circuit is used for linear voltage stabilization
The output of circuit carries out clamper, the output voltage VO UT Non voltage output when input voltage VIN is lower than low pressure threshold VINL, direct current
Decompression voltage regulator is used to provide pressure stabilizing input to linear voltage-stabilizing circuit；Linear voltage-stabilizing circuit is used to export stable VOUT electricity
Pressure.
Further, the input circuit includes diode D1, and the anode of diode D1 connects external input voltage VIN,
The output of cathode is the output of input circuit.
As mode of priority, the clamp circuit includes triode Q1, resistance R1, resistance R2 and voltage-stabiliser tube D2, described straight
Flowing decompression voltage regulator includes resistance R3, triode Q2, voltage-stabiliser tube D3, capacitor C1 and capacitor C2；The output of input circuit connects
To the triode Q1 emitter, one end of resistance R1 and the collector of triode Q2, the base stage of triode Q1 with it is described
The other end of resistance R1 is connected, and is connected to one end of resistance R2, and the other end of resistance R2 is connected to the yin of the voltage-stabiliser tube D2
Pole, the plus earth of the voltage-stabiliser tube D2, the collector of the triode Q1 are connected to one end of resistance R3, the resistance R3 other end
It is connected to the base stage of triode Q2 and the cathode of voltage-stabiliser tube D3, voltage-stabiliser tube D3 plus earth；The emitter of the triode Q2 is made
It is connected to linear voltage-stabilizing circuit (4) for output, the emitter of triode Q2 also passes through the capacitor C1 and capacitor C2 ground connection.
Further, the low pressure threshold VINL is equal to the diode D1 forward conduction voltage drop, triode Q1 emitter
The sum of the pressure stabilizing value of pressure difference Yu voltage-stabiliser tube D2 is connected with base stage.
The triode Q1 is PNP type triode, and triode Q2 is NPN type triode.
As another preferred embodiment, clamp circuit includes metal-oxide-semiconductor M1, resistance R1 and voltage-stabiliser tube D2, DC decompression pressure stabilizing
Circuit includes resistance R3, triode Q2, voltage-stabiliser tube D3, capacitor C1 and capacitor C2；The output of input circuit is connected to metal-oxide-semiconductor M1's
Source level, resistance R1 are serially connected between the source electrode and grid of metal-oxide-semiconductor M1, the cathode of the grid connection voltage-stabiliser tube D2 of metal-oxide-semiconductor M1, pressure stabilizing
The plus earth of pipe D2；The drain electrode of metal-oxide-semiconductor M1 is connected to the collector of triode Q2, and resistance R3 is serially connected in the current collection of triode Q2
Between pole and base stage, the cathode of the base stage connection voltage-stabiliser tube D3 of triode Q2, voltage-stabiliser tube D3 plus earth, the transmitting of triode Q2
Pole is connected to linear voltage-stabilizing circuit as output, and the emitter of triode Q2 also passes through capacitor C1 and capacitor C2 ground connection.
It is preferred that the linear voltage-stabilizing circuit includes linear regulator chip U1, capacitor C3 and capacitor C4；Direct current drop
The output of pressure voltage regulator circuit is connected to the end VDD and EN of linear regulator chip U1, the OUT terminal connection of the linear regulator chip U1
To one end of capacitor C3, capacitor C4, and as output voltage VO UT；The end GND of the linear regulator chip U1, capacitor C3, electricity
Hold C4 ground connection；The end ADJ of the linear regulator chip U1 is hanging.
The utility model utilizes the clamper function of clamp circuit, it is ensured that when input voltage VIN is lower than low pressure threshold VINL
When, output voltage VO UT no-voltage value output, output voltage VO UT is used to power to single-chip microcontroller, and then ensures that single-chip microcontroller is normal
Work is under amount voltage value.
In the utility model circuit, the unilateral conduction of diode D1 is ensured when input voltage VIN reversal connection, clamper electricity
Road and the input of DC decompression voltage regulator circuit no-voltage, it is therefore prevented that because input voltage reverse connection causes the decompression voltage regulator to damage.When
When input voltage VIN just connects, input circuit provides input voltage for clamp circuit and DC decompression voltage regulator circuit.
The clamp circuit, DC decompression voltage regulator circuit cooperating of the utility model, when input voltage VIN is less than low pressure threshold
When value VINL, the circuit of DC decompression voltage regulator circuit and linear voltage-stabilizing circuit is cut off, realizes clamper.Clamp circuit can have more
Kind implementation, by taking the scheme of above-mentioned triode Q1 as an example, input voltage VIN is less than low pressure threshold VINL, i.e. diode D1 is just
When the sum of pressure difference and the pressure stabilizing value of voltage-stabiliser tube D2 being connected with base stage to conduction voltage drop, triode Q1 emitter, input voltage VIN
This circuit end-diode D1- triode Q1 emitter-triode Q1 base stage-resistance R2- voltage-stabiliser tube D2-GND does not turn on,
Triode Q1 base stage no current flows through at this time, so that triode Q1 collector is also flowed through without electric current, input voltage VIN end-two
Pole pipe D1- triode Q1 emitter-triode Q1 collector-resistance R3- triode Q2 base stage-triode Q2 emitter-is linear
This circuit the vdd terminal-GND of voltage stabilizing chip U1 will not be connected.Therefore the vdd terminal of linear regulator chip U1 is without input voltage,
Then the OUT terminal of linear regulator chip U1 is also without output voltage, therefore the end output voltage VO UT no-voltage at this time, ensure that when defeated
When entering voltage VIN lower than low pressure threshold VINL, output voltage VO UT Non voltage output.And when input voltage VIN is greater than low pressure threshold
When value VINL, input voltage VIN end-diode D1- triode Q1 emitter-triode Q1 base stage-resistance R2- voltage-stabiliser tube D2-
The conducting of this circuit GND, triode Q1 base stage has electric current to flow through, so that triode Q1 collector also has electric current to flow through, input electricity
Press the end VIN-diode D1- triode Q1 emitter-triode Q1 collector-resistance R3- triode Q2 base stage-triode Q2 hair
The conducting of this circuit emitter-base bandgap grading-linear regulator chip U1 vdd terminal-GND, the vdd terminal of linear regulator chip U1 have input voltage, then
The OUT terminal of linear regulator chip U1 has output voltage, i.e. the end output voltage VO UT exports the specified electricity worked normally for single-chip microcontroller
Pressure.
The utility model has the advantages that the utility model considers solar panels through decompression voltage regulator to monolithic
When machine is powered, it may appear that because solar panels end brownout causes the output voltage after decompression voltage regulator that single-chip microcontroller is not achieved
The voltage rating of normal work, the case where operation exception so as to cause SCM program.The utility model provides a kind of band pincers
The multilevel decompression voltage regulator circuit of bit function, ensure that under any circumstance, and single-chip microcontroller work can only work under rated voltage.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the multilevel decompression voltage regulator circuit with clamper function in embodiment 1.
Fig. 2 is a kind of circuit diagram of the multilevel decompression voltage regulator circuit with clamper function in embodiment 2.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of this method is described in further detail.Implement below
Example is not limited to the range of this method for illustrating this method.
Embodiment 1
The circuit structure of multilevel decompression voltage regulator circuit of the utility model with clamper function is as shown in Figure 1, include input circuit
1, clamp circuit 2, DC decompression voltage regulator circuit 3 and linear voltage-stabilizing circuit 4.Input circuit 1 includes diode D1, clamp circuit 2
Including triode Q1, resistance R1, resistance R2 and voltage-stabiliser tube D2, DC decompression voltage regulator circuit 3 includes resistance R3, triode Q2, steady
Pressure pipe D3, capacitor C1 and capacitor C2, linear voltage-stabilizing circuit 4 include linear regulator chip U1, capacitor C3 and capacitor C4.The multistage
Decompression voltage regulator is two-stage, and the first order is DC decompression voltage regulator circuit 3, and the second level is linear voltage-stabilizing circuit 4.
Particular circuit configurations are as follows: the anode of the diode D1 of input circuit 1 is connected to the anode of external input voltage VIN,
The cathode of diode D1 is connected to the emitter of triode Q1 in clamp circuit 2, one end of resistance R1 and DC decompression pressure stabilizing electricity
The collector of triode Q2 in road 3.The damage that diode D1 is used to that external power supply is prevented to be reversely connected to circuit.The three of clamp circuit 2
The base stage of pole pipe Q1 is connected with the other end of resistance R1, and is connected to one end of resistance R2；The collector of triode Q1 is connected to
One end of resistance R3 in DC decompression voltage regulator circuit 3；The other end of resistance R2 is connected to the cathode of voltage-stabiliser tube D2；The voltage-stabiliser tube
The anode of D2 is connected to the ground.The other end of the resistance R3 of DC decompression voltage regulator circuit 3 is connected to the base stage and pressure stabilizing of triode Q2
The cathode of pipe D3；The emitter of triode Q2 is connected to capacitor C1, linear voltage stabilization in one end of capacitor C2 and linear voltage-stabilizing circuit 4
The end VDD and EN of chip U1；The anode of voltage-stabiliser tube D3 is connected to the other end of capacitor C1 and capacitor C2, and is grounded.Linear voltage stabilization
The OUT terminal of the linear regulator chip U1 of circuit 4 is connected to one end of capacitor C3, capacitor C4, and is connected to output voltage terminal VOUT；
The end GND of linear regulator chip U1 is connected to the other end of capacitor C3, capacitor C4, and is connected to the ground；Linear regulator chip U1's
The end ADJ is hanging.Triode Q1 is PNP type triode, and triode Q2 is NPN type triode.Capacitor C1 is for filtering out triode Q2
Emitter out-put supply middle low frequency part, capacitor C2 be used for filter out triode Q2 emitter out-put supply medium-high frequency portion
Point, capacitor C3 is used to filter out the medium-high frequency part of the OUT terminal out-put supply of linear regulator chip U1, and capacitor C4 is linear for filtering out
The middle low frequency part of the OUT terminal out-put supply of voltage stabilizing chip U1.
Illustrate the implementation of the utility model circuit below by embodiment.
It is 0.7V that pressure difference is connected with triode Q1 emitter with base stage for diode D1 forward conduction voltage drop, voltage-stabiliser tube D2's
Pressure stabilizing value is 8.2V, and the pressure stabilizing value of voltage-stabiliser tube D3 is 11V, i.e. low pressure threshold VINL is 9.6V.
When solar panels end voltage is lower than 9.6V, input voltage VIN-diode D1- triode Q1 emitter-triode
This circuit Q1 base stage-resistance R2- voltage-stabiliser tube D2-GND does not turn on, and triode Q1 base stage no current flows through, thus triode
Q1 collector is also flowed through without electric current, VIN- diode D1- triode Q1 emitter-triode Q1 collector-tri- pole resistance R3-
This circuit pipe Q2 base stage-triode Q2 emitter-vdd terminal-GND of linear regulator chip U1 does not turn on.Therefore linear steady
Press the vdd terminal of chip U1 without input voltage, so the OUT terminal of linear regulator chip U1 is also without output voltage, therefore at this time
VOUT Non voltage output.
And when solar panels end voltage is higher than 9.6V, input voltage VIN-- three pole of diode D1- triode Q1 emitter
Pipe Q1 base stage-resistance this circuit R2- voltage-stabiliser tube D2-GND conducting.Triode Q1 base stage has electric current to flow through, thus triode Q1
Collector also has electric current to flow through, VIN- diode D1- triode Q1 emitter-triode Q1 collector-resistance R3- triode Q2
Base stage-triode Q2 emitter-this circuit the vdd terminal-GND of linear regulator chip U1 conducting.Therefore linear regulator chip U1
Vdd terminal have input voltage, so the OUT terminal of linear regulator chip U1 has output voltage, i.e. output voltage VO UT can be exported
The voltage rating worked normally for single-chip microcontroller.Therefore it can guarantee that single-chip microcontroller work can only work under rated voltage.
Embodiment 2
The circuit structure of multilevel decompression voltage regulator circuit of the utility model with clamper function is as shown in Fig. 2, include input circuit
1, clamp circuit 2, DC decompression voltage regulator circuit 3 and linear voltage-stabilizing circuit 4.Input circuit 1 includes diode D1, clamp circuit 2
Including metal-oxide-semiconductor M1, resistance R1 and voltage-stabiliser tube D2, DC decompression voltage regulator circuit 3 includes resistance R3, triode Q2, voltage-stabiliser tube D3, electricity
Hold C1 and capacitor C2, linear voltage-stabilizing circuit 4 includes linear regulator chip U1, capacitor C3 and capacitor C4.The multilevel decompression pressure stabilizing
Circuit is two-stage, and the first order is DC decompression voltage regulator circuit 3, and the second level is linear voltage-stabilizing circuit 4.
Particular circuit configurations are as follows: the anode of the diode D1 of input circuit 1 is connected to the anode of external input voltage VIN,
The cathode of diode D1 is connected to one end of the source level of metal-oxide-semiconductor M1 and resistance R1 in clamp circuit 2.Diode D1 is used to prevent outer
Damage of portion's reverse power connection to circuit.The grid of the metal-oxide-semiconductor M1 of clamp circuit 2 is connected with the other end of resistance R1, and is connected to
The anode of the cathode of voltage-stabiliser tube D2, the voltage-stabiliser tube D2 is connected to the ground；The drain electrode of metal-oxide-semiconductor M1 is connected to DC decompression voltage regulator circuit
The collector of one end of resistance R3 and triode Q2 in 3.The base stage of triode Q2 in DC decompression voltage regulator circuit 3 is connected to
The other end of resistance R3, and it is connected to the cathode with voltage-stabiliser tube D3；The emitter of triode Q2 is connected to capacitor C1, capacitor C2
The end VDD and EN of linear regulator chip U1 in one end and linear voltage-stabilizing circuit 4；The anode of voltage-stabiliser tube D3 is connected to capacitor C1 and electricity
Hold the other end of C2, and is grounded.The OUT terminal of the linear regulator chip U1 of linear voltage-stabilizing circuit 4 is connected to capacitor C3, capacitor C4
One end, and it is connected to output voltage terminal VOUT；The end GND of linear regulator chip U1 is connected to the other end of capacitor C3, capacitor C4,
And it is connected to the ground；The end ADJ of linear regulator chip U1 is hanging.Metal-oxide-semiconductor M1 is PMOS, and triode Q2 is NPN type triode.Capacitor
C1 is used to filter out the middle low frequency part of the emitter out-put supply of triode Q2, and capacitor C2 is used to filter out the emitter of triode Q2
The medium-high frequency part of out-put supply, capacitor C3 are used to filter out the medium-high frequency part of the OUT terminal out-put supply of linear regulator chip U1,
Capacitor C4 is used to filter out the middle low frequency part of the OUT terminal out-put supply of linear regulator chip U1.
Illustrate the implementation of the utility model circuit below by embodiment.
Diode D1 forward conduction voltage drop is 0.7V, and the pressure stabilizing value of voltage-stabiliser tube D2 is 8.2V, and the pressure stabilizing value of voltage-stabiliser tube D3 is
11V, i.e. low pressure threshold VINL are 8.9V.
When solar panels end voltage is lower than 8.9V, the source electrode and grid potential of PMOS tube M1 is equal, and PMOS tube M1 is not led
Logical, the drain electrode Non voltage output of PMOS tube M1 is to DC decompression voltage regulator circuit 3.Therefore from-three pole of resistance R3- triode Q2 base stage
This circuit pipe Q2 emitter-vdd terminal-GND of linear regulator chip U1 does not turn on.So the VDD of linear regulator chip U1
End is without input voltage, i.e. the OUT terminal of linear regulator chip U1 is also without output voltage, therefore VOUT Non voltage output at this time.
And when solar panels end voltage is higher than 8.9V, voltage-stabiliser tube D2 is breakdown, so that PMOS tube M1 grid potential is lower than
Source potential, PMOS tube M1 conducting, PMOS tube M1 drain output voltage to DC decompression voltage regulator circuit 3.Therefore from resistance R3- tri-
Pole pipe Q2 base stage-triode Q2 emitter-this circuit the vdd terminal-GND of linear regulator chip U1 conducting.Linear regulator chip
The vdd terminal of U1 has input voltage, so the OUT terminal of linear regulator chip U1 has output voltage, i.e. output voltage VO UT can be defeated
The voltage rating worked normally out for single-chip microcontroller.Therefore it can guarantee that single-chip microcontroller work can only work under rated voltage.
Embodiment of above is merely to illustrate the implementation matters of the utility model, and is not limitation of the utility model,
Those of ordinary skill in related technical field can also be to electricity in the case where not departing from the spirit and scope of the utility model
Various equivalent variationss and modification are made in road, therefore all equivalent technical solutions also belong to the protection category of the utility model.
Claims (7)
1. a kind of multilevel decompression voltage regulator circuit with clamper function, it is characterized in that including input circuit (1), clamp circuit (2), straight
Decompression voltage regulator (3) and linear voltage-stabilizing circuit (4) are flowed, external input voltage VIN inputs clamp circuit by input circuit (1)
(2) and DC decompression voltage regulator circuit (3), the output of linear voltage-stabilizing circuit (4) is output voltage VO UT, and clamp circuit (2) passes through
Input circuit (1) is controlled to the circuit on-off of DC decompression voltage regulator circuit (3), the output of linear voltage-stabilizing circuit (4) is clamped
Position, the output voltage VO UT Non voltage output when input voltage VIN is lower than low pressure threshold VINL, DC decompression voltage regulator circuit (3)
For providing pressure stabilizing input to linear voltage-stabilizing circuit (4)；Linear voltage-stabilizing circuit (4) is for exporting pressure stabilizing output VOUT voltage.
2. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 1, it is characterized in that the input is electric
Road (1) includes diode D1, and the anode of diode D1 connects external input voltage VIN, and the output of cathode is input circuit (1)
Output.
3. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 1, it is characterized in that the clamper is electric
Road (2) includes triode Q1, resistance R1, resistance R2 and voltage-stabiliser tube D2, the DC decompression voltage regulator circuit (3) include resistance R3,
Triode Q2, voltage-stabiliser tube D3, capacitor C1 and capacitor C2；The output of input circuit (1) be connected to the triode Q1 emitter,
One end of resistance R1 and the collector of triode Q2, the base stage of triode Q1 are connected with the other end of the resistance R1, and even
It is connected to one end of resistance R2, the other end of resistance R2 is connected to the cathode of the voltage-stabiliser tube D2, and the anode of the voltage-stabiliser tube D2 connects
Ground, the collector of the triode Q1 are connected to one end of resistance R3, the resistance R3 other end be connected to triode Q2 base stage and
The cathode of voltage-stabiliser tube D3, voltage-stabiliser tube D3 plus earth；The emitter of the triode Q2 is connected to linear voltage stabilization electricity as output
Road (4), the emitter of triode Q2 also pass through the capacitor C1 and capacitor C2 ground connection.
4. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 3, it is characterized in that the input is electric
Road (1) includes diode D1, and the anode of diode D1 connects external input voltage VIN, and the output of cathode is input circuit (1)
Output；The low pressure threshold VINL is equal to the diode D1 forward conduction voltage drop, pressure is connected with base stage for triode Q1 emitter
The sum of the pressure stabilizing value of difference and voltage-stabiliser tube D2.
5. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 3, it is characterized in that the triode
Q1 is PNP type triode, and triode Q2 is NPN type triode.
6. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 1, it is characterized in that clamp circuit (2)
Including metal-oxide-semiconductor M1, resistance R1 and voltage-stabiliser tube D2, DC decompression voltage regulator circuit (3) include resistance R3, triode Q2, voltage-stabiliser tube D3,
Capacitor C1 and capacitor C2；The output of input circuit (1) is connected to the source level of metal-oxide-semiconductor M1, and resistance R1 is serially connected in the source electrode of metal-oxide-semiconductor M1
Between grid, the cathode of the grid connection voltage-stabiliser tube D2 of metal-oxide-semiconductor M1, the plus earth of voltage-stabiliser tube D2；The drain electrode of metal-oxide-semiconductor M1 connects
It is connected to the collector of triode Q2, resistance R3 is serially connected between the collector and base stage of triode Q2, and the base stage of triode Q2 connects
The cathode of voltage-stabiliser tube D3 is connect, the emitter of voltage-stabiliser tube D3 plus earth, triode Q2 is connected to linear voltage-stabilizing circuit as output
(4), the emitter of triode Q2 also passes through capacitor C1 and capacitor C2 ground connection.
7. a kind of multilevel decompression voltage regulator circuit with clamper function according to claim 1-6, it is characterized in that institute
Stating linear voltage-stabilizing circuit (4) includes linear regulator chip U1, capacitor C3 and capacitor C4；The output of DC decompression voltage regulator circuit (3)
It is connected to the end VDD and EN of linear regulator chip U1, the OUT terminal of the linear regulator chip U1 is connected to capacitor C3, capacitor C4
One end, and as output voltage VO UT；The end GND of the linear regulator chip U1, capacitor C3, capacitor C4 ground connection；The line
The end ADJ of property voltage stabilizing chip U1 is hanging.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316252.5U CN208861199U (en) | 2018-08-15 | 2018-08-15 | A kind of multilevel decompression voltage regulator circuit with clamper function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316252.5U CN208861199U (en) | 2018-08-15 | 2018-08-15 | A kind of multilevel decompression voltage regulator circuit with clamper function |
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| CN208861199U true CN208861199U (en) | 2019-05-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082640A (en) * | 2019-12-13 | 2020-04-28 | 广州金升阳科技有限公司 | Positive and negative excitation auxiliary power supply circuit and positive and negative excitation power supply circuit |
| CN113572354A (en) * | 2021-08-12 | 2021-10-29 | 福建飞毛腿动力科技有限公司 | Low-cost high-voltage LDO system utilizing resistance dissipation |
-
2018
- 2018-08-15 CN CN201821316252.5U patent/CN208861199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082640A (en) * | 2019-12-13 | 2020-04-28 | 广州金升阳科技有限公司 | Positive and negative excitation auxiliary power supply circuit and positive and negative excitation power supply circuit |
| CN113572354A (en) * | 2021-08-12 | 2021-10-29 | 福建飞毛腿动力科技有限公司 | Low-cost high-voltage LDO system utilizing resistance dissipation |
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