CN114362528A - Suspension power supply - Google Patents
Suspension power supply Download PDFInfo
- Publication number
- CN114362528A CN114362528A CN202111660273.5A CN202111660273A CN114362528A CN 114362528 A CN114362528 A CN 114362528A CN 202111660273 A CN202111660273 A CN 202111660273A CN 114362528 A CN114362528 A CN 114362528A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- power supply
- operational amplifier
- resistor
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Control Of Voltage And Current In General (AREA)
Abstract
The invention discloses a suspension power supply, comprising: the voltage regulation control unit and the voltage regulation unit are arranged, and the voltage regulation unit comprises an operational amplifier, a voltage division circuit, a feedback circuit and an adjusting circuit; the voltage division circuit is used for dividing the input voltage, the voltage division point of the voltage division circuit is connected with the first input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting circuit, the feedback circuit is connected with the adjusting circuit, and the second input end of the operational amplifier is used for accessing the feedback voltage of the feedback circuit; the voltage regulation control unit is connected with the voltage division circuit or the feedback circuit and is used for regulating the voltage division ratio of the voltage division circuit or the feedback circuit; the adjusting circuit is used for adjusting the input voltage, and the output of the adjusting circuit is used as the output voltage of the suspension power supply.
Description
Technical Field
The embodiment of the invention relates to a power supply technology, in particular to a suspension power supply.
Background
An electron gun is a device for emitting an electron beam with certain energy, certain beam current, speed and angle, and can be applied to medical treatment, 3D printing, welding and other scenes.
The electron gun is mainly divided into a secondary electron gun and a grid-controlled electron gun, wherein the grid-controlled electron gun mainly comprises a filament, a cathode, a grid and an anode. In a grid-controlled electron gun, a high voltage of several tens of kilovolts is generally applied between a cathode and an anode plane to accelerate an electron beam, and the electron beam current is controlled by controlling the voltage of the grid relative to the cathode.
At present, the control of the grid voltage is mainly realized through a grid control suspension power supply, but the voltage regulation speed of the grid control suspension power supply in the prior art is low, and the control precision is lower when the control of the electron beam current is realized through the grid control suspension power supply.
Disclosure of Invention
The invention provides a suspension power supply, which aims to achieve the purposes of simplifying the suspension power supply and improving the control precision of the suspension power supply.
The embodiment of the invention provides a suspension power supply, which comprises: the voltage regulation control unit and the voltage regulation unit are arranged in the circuit board, and the voltage regulation unit comprises an operational amplifier, a voltage division circuit, a feedback circuit and an adjusting circuit;
the voltage division circuit is used for dividing input voltage, a voltage division point of the voltage division circuit is connected with a first input end of the operational amplifier, an output end of the operational amplifier is connected with the adjusting circuit, the feedback circuit is connected with the adjusting circuit, and a second input end of the operational amplifier is used for accessing feedback voltage of the feedback circuit;
the voltage regulating control unit is connected with the voltage dividing circuit or the feedback circuit and is used for regulating the voltage dividing ratio of the voltage dividing circuit or the feedback circuit;
the adjusting circuit is used for adjusting the input voltage, and the output of the adjusting circuit is used as the output voltage of the floating power supply.
Optionally, the voltage regulating control unit is connected to the voltage dividing circuit, and the voltage regulating control unit is configured to adjust a voltage dividing ratio of the voltage dividing circuit.
Optionally, the voltage regulation control unit includes a first signal input end, a first signal output end and an electronic potentiometer;
the first signal input end is connected with the first signal output end through an optical fiber, and the first signal output end is connected with the control end of the electronic potentiometer;
and the output end of the electronic potentiometer is connected with the voltage division circuit.
Optionally, the voltage sampling unit further includes a second signal input end and a second signal output end;
the voltage sampling unit is used for sampling the output voltage, and the output end of the voltage sampling unit is connected with the second signal input end;
the second signal input end is connected with the second signal output end through an optical fiber.
Optionally, the display device further comprises a display unit, wherein the display unit is connected with the second signal output end;
the display unit is used for displaying the sampling voltage of the voltage sampling unit.
Optionally, the apparatus further comprises a protection unit, wherein the protection unit is connected with the second signal output end;
the protection unit is used for overvoltage and undervoltage protection of the suspension power supply.
Optionally, the adjusting circuit includes a first triode and a second triode;
the first end of the first triode is used for being connected with the input voltage, the second end of the first triode is used for outputting the output voltage, and the voltage end of the input voltage is connected with the control end of the first triode through a first resistor;
the first end of the second triode is connected with the control end of the first triode, and the second end of the second triode is connected with a reference power supply end through a second resistor;
and the output end of the operational amplifier is connected with the control end of the second triode through a third resistor.
Optionally, the adjusting circuit further includes a first diode and a second diode;
the first end of the second triode is connected with the control end of the first triode through the first diode;
the output end of the operational amplifier is connected with the control end of the second triode through the third resistor and the second diode.
Optionally, the system further comprises an adjustable voltage regulator;
the voltage regulation control unit is connected with the connection point of the voltage division circuit and the control end of the voltage stabilizer;
and the output end of the adjustable voltage stabilizer is connected with the first input end of the operational amplifier through a fourth resistor.
Optionally, the device further comprises a voltage stabilizing diode;
the feedback voltage end of the adjusting unit is connected with a reference power supply end through a fifth resistor and the voltage stabilizing diode;
and the connection point of the fifth resistor and the voltage-stabilizing diode is connected with the second input end of the operational amplifier through a sixth resistor.
Optionally, the system further comprises a transformer, and an output of the transformer is used as the input voltage.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a suspension power supply which comprises a voltage regulation control unit and a voltage regulation unit, wherein the voltage regulation unit comprises an operational amplifier, a voltage division circuit and an adjusting circuit. After the voltage regulation control unit outputs the voltage regulation control signal, the reference voltage of the operational amplifier is changed by changing the voltage division ratio of the voltage division circuit, so that the output voltage of the adjusting circuit is changed, and based on the operational amplifier, the high-precision control of the output voltage can be realized, so that the high-precision control of the electron gun for emitting the electron beam is realized.
Drawings
FIG. 1 is a schematic diagram of a floating power supply in an embodiment;
FIG. 2 is a schematic structural diagram of a voltage regulating unit in an embodiment;
FIG. 3 is a schematic diagram of another voltage regulating unit in the embodiment;
FIG. 4 is a schematic diagram of another floating power supply configuration in an embodiment;
FIG. 5 is a schematic structural diagram of a voltage regulation control unit in an embodiment;
FIG. 6 is a schematic diagram of another floating power supply configuration in an embodiment;
fig. 7 is a schematic structural diagram of a protection unit in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The embodiment provides a suspension power supply, including pressure regulating control unit, pressure regulating unit, the pressure regulating unit includes operational amplifier, bleeder circuit, feedback circuit and adjusting circuit.
The voltage division circuit is used for dividing the input voltage, the voltage division point of the voltage division circuit is connected with the first input end of the operational amplifier, the output end of the operational amplifier is connected with the adjusting circuit, the feedback circuit is connected with the adjusting circuit, and the second input end of the operational amplifier is used for accessing the feedback voltage of the feedback circuit.
The voltage regulation control unit is connected with the voltage division circuit or the feedback circuit and is used for controlling the voltage division ratio of the voltage division circuit or the feedback circuit.
The adjusting circuit is used for adjusting the input voltage, and the output of the adjusting circuit is used as the output voltage of the suspension power supply.
Fig. 1 is a schematic diagram of a floating power supply in an example, and referring to fig. 1, in one possible embodiment, the floating power supply includes: the voltage regulation control unit 100 and the voltage regulation unit 200, wherein the voltage regulation unit 200 comprises an operational amplifier 201, a voltage division circuit 202, an adjustment circuit 203 and a feedback circuit 204.
In this embodiment, for example, the voltage dividing circuit 202 is used for dividing the input voltage, the voltage regulating control unit 100 is connected to the voltage dividing circuit 202, and the voltage regulating control unit 100 is used for controlling the voltage dividing ratio of the voltage dividing circuit 202.
For example, in the present embodiment, the voltage regulation control unit 100 may be based on a rheostat; a potentiometer; electronic potentiometers, controllers and other devices are designed and realized.
The voltage dividing point of the voltage dividing circuit 202 is connected to a first input terminal of the operational amplifier 201, an output terminal of the operational amplifier 201 is connected to the adjusting circuit 203, and a second input terminal of the operational amplifier 201 is used for accessing a feedback voltage of the feedback circuit 204.
For example, in this embodiment, the adjusting circuit 203 may be implemented based on an adjusting tube design, and the adjusting circuit 203 is configured for adjusting the input voltage.
In this embodiment, taking the input voltage of the first input terminal of the operational amplifier 201 as the reference voltage and the input voltage of the second input terminal as the comparison voltage, the operation process of the floating power supply includes:
the voltage-dividing ratio of the voltage-dividing circuit 202 is adjusted by the voltage-regulating control unit 100, so that the voltage-dividing point of the voltage-dividing circuit 202 outputs a specified voltage;
when the specified voltage changes, the input voltage at the first input terminal of the operational amplifier 201 changes, so that the voltage at the output terminal of the operational amplifier 201 changes;
when the voltage at the output terminal of the operational amplifier 201 changes, the voltage regulation ratio of the regulation circuit 203 changes, and the output voltage VOUT changes.
For example, in this embodiment, the floating power supply may be used as a gate control power supply in the electron gun, and the variation of the output voltage VOUT of the floating power supply may be used to adjust the intensity of the electron beam emitted by the electron gun.
This embodiment provides a suspension power supply, and suspension power supply includes voltage regulation control unit, voltage regulating unit, and the voltage regulating unit includes operational amplifier, bleeder circuit and adjusting circuit. After the voltage regulation control unit outputs the voltage regulation control signal, the reference voltage of the operational amplifier is changed by changing the voltage division ratio of the voltage division circuit, so that the output voltage of the adjusting circuit is changed, and based on the operational amplifier, the high-precision control of the output voltage can be realized, so that the high-precision control of the electron gun for emitting the electron beam is realized.
Fig. 2 is a schematic structural diagram of a voltage regulation unit in an embodiment, and referring to fig. 2, in an implementation, the voltage regulation unit includes a first transistor Q1 and a second transistor Q2.
Referring to fig. 2, a first terminal of the first transistor Q1 is configured to be connected to an input voltage VCC, a second terminal of the first transistor Q1 is configured to output an output voltage VOUT, and a voltage terminal of the input voltage VCC is connected to a control terminal of the first transistor Q1 through a first resistor R10.
A first terminal of the second transistor Q2 is connected to a control terminal of the first transistor Q1, and a second terminal of the second transistor Q2 is connected to a reference power source terminal through a second resistor R12.
The output terminal of the operational amplifier 201 is connected to the control terminal of the second transistor Q2 through a third resistor.
For example, in the scheme shown in fig. 2, the first transistor Q1, the second transistor Q2, the first resistor R10, and the second resistor R12 form an adjusting circuit, and the operation process of the adjusting circuit includes:
when the voltage at the output terminal of the operational amplifier 201 changes, the current Iec through the second transistor Q2 changes, and the voltage at the control terminal of the first transistor Q1 changes based on the first resistor R10;
when the voltage at the control terminal of the first transistor Q1 changes, the internal resistance of the first transistor Q1 changes, and the voltage at the second terminal of the first transistor Q1 and the output voltage VOUT change.
Illustratively, when the regulating circuit is formed based on the first triode Q1 and the second triode Q2, the second triode Q2 can amplify the current, so as to increase the variation range of the control terminal voltage of the first triode Q1 and improve the adjustable range of the output voltage VOUT.
Referring to fig. 2, the voltage regulating unit further includes a resistor R2 and a resistor R3, the resistor R2 is connected in series with the resistor R3 and then connected to the voltage regulating control unit, a connection point of the resistor R2 and the resistor R3 serves as a voltage dividing point, and the voltage dividing point is connected to the first input terminal of the operational amplifier 201 through a resistor R5.
Illustratively, when the voltage regulation control unit 100 outputs the voltage regulation control signal, the voltage at the voltage division point between the resistor R2 and the resistor R3 changes, thereby changing the reference voltage of the operational amplifier 201.
Referring to fig. 2, the voltage regulating unit further includes a resistor R4 and a resistor R1, the resistor R4 is connected in series with the resistor R1, one end of the resistor R4 is connected to the second end of the first transistor Q1, one end of the resistor R1 is connected to a reference power source terminal, and a connection point of the resistor R4 and the resistor R1 is connected to the second input terminal of the operational amplifier 201 through a resistor R6.
Illustratively, the resistor R4 and the resistor R1 form a feedback circuit, and the output voltage VOUT divided by the feedback circuit is used as the feedback voltage.
Illustratively, in the arrangement shown in FIG. 2, the operational amplifier 201 is model OPA 445.
Illustratively, on the basis of the scheme shown in fig. 2, the positions of the voltage regulation control unit 100 and the resistor R1 can be interchanged, and in this case, the voltage regulation control unit 100 is used for adjusting the voltage division ratio of the feedback circuit.
For example, when the voltage regulation control unit 100 is connected to the feedback circuit, the reference voltage of the operational amplifier 201 is a fixed value, and the working process of the voltage regulation unit is substantially the same as that of the scheme shown in fig. 2, and the detailed process thereof is not repeated.
Fig. 3 is a schematic structural diagram of another voltage regulating unit in an embodiment, and referring to fig. 3, based on the scheme shown in fig. 2, the voltage regulating unit further includes a first diode D3 and a second diode D2.
A first terminal of the second transistor Q2 is connected to a control terminal of the first transistor Q1 through a first diode D3.
The output end of the operational amplifier 201 is connected to the control end of the second transistor Q2 through a third resistor and a second diode D2.
Illustratively, the first diode D3 and the second diode D2 are respectively configured to provide a suitable voltage drop for the voltages inputted to the control terminal of the second transistor Q2 and the control terminal of the first transistor Q1, so that the voltages at the control terminals of the transistors are within a certain range.
Illustratively, the diode is adopted to provide voltage drop, so that the problem that the type selection or resistance parameter design is difficult when the same voltage drop is achieved by adopting the resistor can be avoided.
Referring to fig. 3, the voltage regulating unit further includes an adjustable voltage regulator U1, a control terminal of the adjustable voltage regulator U1 and a connection point of the resistor R2 and the voltage regulating control unit 100 are connected, a cathode of the adjustable voltage regulator U1 and a connection point of the resistor R2 and the resistor R3 are connected, a cathode of the adjustable voltage regulator U1 is further connected to the first input terminal of the operational amplifier 201 through the resistor R5, and an anode of the adjustable voltage regulator U1 is connected to a reference power supply terminal.
Illustratively, the model of adjustable voltage regulator U1 employs LM 431.
Illustratively, as the voltage at the control terminal of adjustable regulator U1 changes, the output voltage at the cathode of adjustable regulator U1 changes. The accuracy of the reference voltage of the operational amplifier 201 can be improved based on the adjustable voltage regulator U1.
Referring to fig. 3, the voltage regulator unit further includes a zener diode D1, the second terminal (the feedback voltage terminal of the regulator unit) of the first transistor Q1 is connected to the reference power source terminal through a resistor R4, and the zener diode D1 is connected to the reference power source terminal.
The junction of the resistor R4 and the zener diode D1 is connected to the second input terminal of the operational amplifier 201 through a resistor R6.
Illustratively, the zener diode D1 is used to clamp the voltage input to the second input terminal, so as to avoid the problem that the voltage input to the second input terminal exceeds the set range, which may cause the damage to the operational amplifier 201.
Fig. 4 is a schematic diagram of another floating power supply structure in the embodiment, and referring to fig. 4, in an implementation, the voltage-regulating control unit includes a first signal input terminal 101, a first signal output terminal 102, and an electronic potentiometer 103.
The first signal input end 101 is connected with the first signal output end 102 through an optical fiber, the first signal output end 102 is connected with the control end of the electronic potentiometer 103, and the output end of the electronic potentiometer 103 is connected with the voltage division circuit 202.
Illustratively, the first signal input terminal 101 may be connected to the controller 1000, and the controller 1000 may be configured to generate a voltage regulation control signal, where the voltage regulation control signal is transmitted to the electronic potentiometer 103 through an optical fiber, and the electronic potentiometer 103 outputs a potential change after receiving the voltage regulation control signal, thereby implementing a change in the voltage division ratio of the voltage division circuit 202.
Illustratively, the transmission of the control signal through the optical fiber can realize the signal isolation between the controller and the suspension power supply, avoid the interference of the suspension power supply on the control signal, and improve the control precision.
Fig. 5 is a schematic structural diagram of the voltage regulation control unit in the embodiment, and referring to fig. 5, in an implementation, the first signal output terminal may be specifically divided into a signal output interface OP1 and a signal output interface OP 2.
Illustratively, the signal output interface OP1 and the signal output interface OP2 are fiber optic connectors, which may be of the type HFBR 2521.
Illustratively, the model of the electronic potentiometer 103 is AD5220, and the signal output interface OP1 is connected to the CLK port of the AD5220, and the signal output interface OP2 is connected to the U/D port of the AD5220, at this time, the signal output interface OP1 is used for transmitting the voltage amplitude adjusting signal, and the signal output interface OP2 is used for transmitting the voltage rising and falling selecting signal.
Illustratively, when the first signal output end is divided into the signal output interface OP1 and the signal output interface OP2, the first signal input end is also divided into two input interfaces, and the input interfaces are also selected from optical fiber connectors, and the type of the optical fiber connectors is matched with the type of the output interfaces.
Fig. 6 is a schematic diagram of another floating power supply structure in an embodiment, and referring to fig. 6, in an implementation, the floating power supply further includes a voltage sampling unit 301, and the voltage sampling unit 301 is configured with a second signal input terminal 302 and a second signal output terminal 303.
The voltage sampling unit 301 is used for sampling the output voltage VOUT, an output end of the voltage sampling unit 301 is connected to the second signal input end 302, and the second signal input end 302 is connected to the second signal output end 303 through an optical fiber.
Illustratively, the second signal output terminal 303 may be connected to a display unit 400, and the display unit 400 is used for displaying the sampling voltage of the voltage sampling unit.
For example, the voltage sampling unit 301 may be designed based on the AD650, and the second signal input terminal 302 and the second signal output terminal 303 use fiber connectors, and the second signal input terminal 302 is configured to be connected to the signal output terminal of the AD 650.
Referring to fig. 6, in an embodiment, the floating power supply further includes a protection unit 500, and the protection unit is connected to the second signal output terminal 303 of 500 and the controller 1000, and is used for overvoltage and undervoltage protection of the floating power supply.
Fig. 7 is a schematic structural diagram of a protection unit in an embodiment, and referring to fig. 7, as an implementation, the protection unit includes an operational amplifier U1, a first voltage comparator U2, and a second voltage comparator U3.
The positive input terminal of the operational amplifier U1 is connected to the second signal output terminal 303, the output terminal of the operational amplifier U1 is connected to the positive input terminal of the first voltage comparator U2 and the negative input terminal of the second voltage comparator U3, and the output terminals of the first voltage comparator U2 and the second voltage comparator U3 are connected to the controller 1000.
Illustratively, the first voltage comparator U2 is configured to determine whether the output voltage VOUT is greater than the upper limit value of the set voltage range by adjusting the value of the reference voltage, which is the input voltage at the inverting output terminal of the first voltage comparator U2;
the second voltage comparator U3 is configured to determine whether the output voltage VOUT is smaller than the lower limit of the set voltage range by adjusting the value of the reference voltage, which is the input voltage at the positive output terminal of the second voltage comparator U3.
For example, the operational amplifier U1 may be of the type LM224, and the first voltage comparator U2 and the second voltage comparator U3 may be of the type LM 211.
For example, the controller 1000 determines whether the output voltage is over-voltage or under-voltage according to the output signals of the first voltage comparator U2 and the second voltage comparator U3, and then executes a preset protection procedure (e.g., alarm prompt).
Illustratively, in one possible embodiment, the levitation power supply further includes a transformer, and an output of the transformer is used as an input voltage of the voltage regulating unit.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A levitating power supply, comprising: the voltage regulation control unit and the voltage regulation unit are arranged in the circuit board, and the voltage regulation unit comprises an operational amplifier, a voltage division circuit, a feedback circuit and an adjusting circuit;
the voltage division circuit is used for dividing input voltage, a voltage division point of the voltage division circuit is connected with a first input end of the operational amplifier, an output end of the operational amplifier is connected with the adjusting circuit, the feedback circuit is connected with the adjusting circuit, and a second input end of the operational amplifier is used for accessing feedback voltage of the feedback circuit;
the voltage regulating control unit is connected with the voltage dividing circuit or the feedback circuit and is used for regulating the voltage dividing ratio of the voltage dividing circuit or the feedback circuit;
the adjusting circuit is used for adjusting the input voltage, and the output of the adjusting circuit is used as the output voltage of the floating power supply.
2. The levitation power supply of claim 1, wherein the voltage regulation control unit is connected to the voltage divider circuit, and the voltage regulation control unit is configured to adjust a voltage division ratio of the voltage divider circuit.
3. The levitation power supply of claim 2, wherein the voltage regulation control unit comprises a first signal input, a first signal output, and an electronic potentiometer;
the first signal input end is connected with the first signal output end through an optical fiber, and the first signal output end is connected with the control end of the electronic potentiometer;
and the output end of the electronic potentiometer is connected with the voltage division circuit.
4. The levitation power supply of claim 2, further comprising a voltage sampling unit comprising a second signal input, a second signal output;
the voltage sampling unit is used for sampling the output voltage, and the output end of the voltage sampling unit is connected with the second signal input end;
the second signal input end is connected with the second signal output end through an optical fiber.
5. The levitation power supply of claim 4, further comprising a display unit coupled to the second signal output;
the display unit is used for displaying the sampling voltage of the voltage sampling unit.
6. The levitation power supply of claim 4, further comprising a protection unit coupled to the second signal output;
the protection unit is used for overvoltage and undervoltage protection of the suspension power supply.
7. The levitation power supply of claim 2, wherein the adjustment circuit comprises a first transistor, a second transistor;
the first end of the first triode is used for being connected with the input voltage, the second end of the first triode is used for outputting the output voltage, and the voltage end of the input voltage is connected with the control end of the first triode through a first resistor;
the first end of the second triode is connected with the control end of the first triode, and the second end of the second triode is connected with a reference power supply end through a second resistor;
and the output end of the operational amplifier is connected with the control end of the second triode through a third resistor.
8. The levitation power supply of claim 7, wherein the adjustment circuit further comprises a first diode, a second diode;
the first end of the second triode is connected with the control end of the first triode through the first diode;
the output end of the operational amplifier is connected with the control end of the second triode through the third resistor and the second diode.
9. The levitation power supply of claim 2, further comprising an adjustable voltage regulator;
the voltage regulation control unit is connected with the connection point of the voltage division circuit and the control end of the voltage stabilizer;
and the output end of the adjustable voltage stabilizer is connected with the first input end of the operational amplifier through a fourth resistor.
10. The floating power supply of claim 2, further comprising a zener diode;
the feedback voltage end of the adjusting unit is connected with a reference power supply end through a fifth resistor and the voltage stabilizing diode;
and the connection point of the fifth resistor and the voltage-stabilizing diode is connected with the second input end of the operational amplifier through a sixth resistor.
11. The levitation power supply of claim 1, further comprising a transformer, an output of the transformer being the input voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660273.5A CN114362528A (en) | 2021-12-31 | 2021-12-31 | Suspension power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660273.5A CN114362528A (en) | 2021-12-31 | 2021-12-31 | Suspension power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114362528A true CN114362528A (en) | 2022-04-15 |
Family
ID=81104728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111660273.5A Pending CN114362528A (en) | 2021-12-31 | 2021-12-31 | Suspension power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114362528A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122919A (en) * | 2013-04-27 | 2014-10-29 | 海洋王（东莞）照明科技有限公司 | Direct-current voltage stabilizing circuit |
| CN105468075A (en) * | 2015-12-22 | 2016-04-06 | 上海华虹宏力半导体制造有限公司 | Feedback circuit of negative voltage charge pump |
| CN106098000A (en) * | 2016-08-03 | 2016-11-09 | 深圳市华星光电技术有限公司 | Companion's volt circuit and liquid crystal display |
| CN205986102U (en) * | 2016-08-30 | 2017-02-22 | 广州小百合信息技术有限公司 | Protection circuit for power supply |
| CN207053395U (en) * | 2017-08-10 | 2018-02-27 | 郑州云海信息技术有限公司 | A kind of DC decompression adjusts circuit structure |
| CN207249521U (en) * | 2017-03-17 | 2018-04-17 | 南京工业职业技术学院 | Adjustable linear voltage-stabilized power supply circuit |
| CN109980924A (en) * | 2019-02-27 | 2019-07-05 | 华中科技大学 | A kind of PSM high voltage power supply based on feedback control |
| CN209472413U (en) * | 2019-01-14 | 2019-10-08 | 广州小鹏汽车科技有限公司 | A kind of charging circuit and equipment |
| CN213986287U (en) * | 2020-11-06 | 2021-08-17 | 长江武汉航道工程局 | ERT resistance sensor based on liquid-solid two-phase fluid |
| CN113282125A (en) * | 2020-02-20 | 2021-08-20 | 佛山市云米电器科技有限公司 | Voltage control device and system thereof |
-
2021
- 2021-12-31 CN CN202111660273.5A patent/CN114362528A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122919A (en) * | 2013-04-27 | 2014-10-29 | 海洋王（东莞）照明科技有限公司 | Direct-current voltage stabilizing circuit |
| CN105468075A (en) * | 2015-12-22 | 2016-04-06 | 上海华虹宏力半导体制造有限公司 | Feedback circuit of negative voltage charge pump |
| CN106098000A (en) * | 2016-08-03 | 2016-11-09 | 深圳市华星光电技术有限公司 | Companion's volt circuit and liquid crystal display |
| CN205986102U (en) * | 2016-08-30 | 2017-02-22 | 广州小百合信息技术有限公司 | Protection circuit for power supply |
| CN207249521U (en) * | 2017-03-17 | 2018-04-17 | 南京工业职业技术学院 | Adjustable linear voltage-stabilized power supply circuit |
| CN207053395U (en) * | 2017-08-10 | 2018-02-27 | 郑州云海信息技术有限公司 | A kind of DC decompression adjusts circuit structure |
| CN209472413U (en) * | 2019-01-14 | 2019-10-08 | 广州小鹏汽车科技有限公司 | A kind of charging circuit and equipment |
| CN109980924A (en) * | 2019-02-27 | 2019-07-05 | 华中科技大学 | A kind of PSM high voltage power supply based on feedback control |
| CN113282125A (en) * | 2020-02-20 | 2021-08-20 | 佛山市云米电器科技有限公司 | Voltage control device and system thereof |
| CN213986287U (en) * | 2020-11-06 | 2021-08-17 | 长江武汉航道工程局 | ERT resistance sensor based on liquid-solid two-phase fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4287557A (en) | Inverter with improved regulation | |
| CN113067553B (en) | Electronic cooling modulation method and device for feedback type pulse linear amplification | |
| CN101739051A (en) | Dynamic resistance-capacitance compensating device for bipolar low-pressure difference linear voltage regulator | |
| CN110007707A (en) | Low pressure difference linear voltage regulator and system | |
| CN114362528A (en) | Suspension power supply | |
| MY112075A (en) | Low-power transconductance driver amplifier | |
| CN105446408A (en) | Self-inspection 4-20 mA output circuit with high precision | |
| CN115528787B (en) | Control loop accelerating circuit | |
| CN113098236B (en) | Switching power supply and output voltage compensation circuit thereof | |
| CN202331248U (en) | Power source stabilizing device with one power source and capable of regulating voltage from zero volt | |
| CN113594849B (en) | Laser constant current driving method and LED light source driving circuit | |
| CN112994187B (en) | Protocol chip and fast charging power supply voltage regulation controller containing same | |
| CN113852274A (en) | Switching power supply far-end compensation circuit and switching power supply | |
| KR102299672B1 (en) | Circuit arrangement for generating a controlled supply low-voltage | |
| CN110084073B (en) | Computer security risk control system | |
| CN217769879U (en) | Secondary dynamic feedback control precise voltage stabilization flyback switching power supply and circuit thereof | |
| CN115967286B (en) | Constant voltage and constant current adjustable control circuit of high-voltage electrostatic generator | |
| US3031578A (en) | Regulated power supply | |
| CN216873166U (en) | Trigger signal regulating system of regulator | |
| CN210431992U (en) | Multi-channel light control system based on network instruction | |
| CN112578837A (en) | Output voltage linear regulation circuit, method and device | |
| CN108717928B (en) | Electron beam control device and method for shared accelerating power supply array type electron gun | |
| CN218630560U (en) | Current source | |
| CN116880639B (en) | Circuit for realizing constant power by using triode and constant power method | |
| US20240201720A1 (en) | Voltage generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |