CN208971391U - A kind of adjustable Pulased power supply unit of amplitude - Google Patents
A kind of adjustable Pulased power supply unit of amplitude Download PDFInfo
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- CN208971391U CN208971391U CN201821778374.6U CN201821778374U CN208971391U CN 208971391 U CN208971391 U CN 208971391U CN 201821778374 U CN201821778374 U CN 201821778374U CN 208971391 U CN208971391 U CN 208971391U
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Abstract
The utility model provides kind of the adjustable Pulased power supply unit of amplitude, which is characterized in that including DC power supply, DC-DC conversion module, half-bridge output module, digital regulation resistance module and transformation control module.Wherein, DC-DC conversion section is by direct current supply voltage transformation at direct current adjustable electric pressure, half-bridge output module adjustable pulse voltage of output voltage amplitude under the control signal function of STM32.The utility model lies in that using digital regulation resistance as the source of feedback signal, digital regulation resistance makes voltage pulse output amplitude adjustable, and software is adjustable, so that application is more wide, more versatility has good meaning and prospect.
Description
Technical field
The utility model relates to a kind of adjustable Pulased power supply units of amplitude, belong to power electronics field.
Background technique
Power supply is the power resources of all electrical equipments and the signal source of various equipment.Various equipment are to meet
To provisioning request, some transformation, the transformation etc. including voltage magnitude must be carried out to power supply.The output signal of driving power has
Diversified forms have single direct current signal type, also have the form of pulse voltage.The common pulse power can use half-bridge
What upper bridge arm and lower bridge arm switched in circuit turns on and off so that busbar voltage shows the form of pulse.
In practical application, in order to realize the gradation effect in spray drawing machine output effect, the electricity of driving power output
Continuous amplitude adjustable pulse voltage signal when corrugating needs.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of adjustable arteries and veins of amplitude
Power supply device is rushed, the adjustable pulse voltage of continuous amplitude can be exported, is similar to the industrial applications such as spray drawing machine to meet
Demand.
In order to solve the above technical problems, the utility model provides a kind of adjustable Pulased power supply unit of amplitude, feature exists
In, including DC power supply, DC-DC conversion module, half-bridge output module, digital regulation resistance module and transformation control module, it is described
DC power supply provides direct current and supplies electricity to DC-DC conversion module, and digital regulation resistance receives the control signal of o controller, and will feedback
Value is transferred to transformation control module, and transformation control module controls DC-DC conversion module by value of feedback and exports adjustable voltage, half-bridge
Output module includes half-bridge output circuit and o controller two parts, and o controller issues control signal control half-bridge output
Circuit is with voltage pulse output.
Further, the DC-DC conversion module includes direct current input terminal J1, outlet terminal J2, the first power switch
Pipe Q1, the second power switch tube Q2, third power switch tube Q3, first diode D1, the first inductance L1, first capacitor C1,
Two capacitor C2, first resistor R1；Wherein the one end direct current input terminal J1 is connected with the drain D of the first power switch tube Q1, direct current
The other end of input terminal J1 is connected to ground；The source S and first diode D1 cathode of first power switch tube Q1 and the first electricity
Feel the one end L1 to be connected, the source S of the first power switch tube Q1 is connected to transformation control module, for conveying the direct current of DC130V
Give transformation control module；The other end of first inductance L1 is positive with first capacitor C1 respectively, the second capacitor C2 is positive, the second power
The drain D of switching tube Q2 is connected；First capacitor C1 cathode, the second capacitor C2 cathode be connected and with the one end first resistor R1, the
The drain D of three power switch tube Q3 and outlet one end terminal J2 are connected；The source S of second power switch tube Q2 is connected to third function
The drain D of rate switching tube Q3, the gate pole G of the second power switch tube Q2, third power switch tube Q3 gate pole G respectively with it is respective
Control signal end is connected；First resistor R1 is ground resistance, and the other end is connected and is grounded with the anode of first diode D1, together
When be connected to transformation control module, resistance R1 sampled current value feeds back to control chip.
Further, the transformation control module includes second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th electricity
Hinder R5, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the two or two
Pole pipe D2, power supply control chip U1, driving chip U2；Wherein second resistance R2 mono- terminates one end of third capacitor C3, the second electricity
Hinder R2 other end ground connection；Another COM port for terminating to power supply control chip U1 of third capacitor C3；4th capacitor C4 mono- termination
Ground, another port FB for terminating to power supply control chip U1；9th one end capacitor C9 ground connection is another to terminate to power supply control chip
The port RT of U1；Tenth one end capacitor C10 ground connection, another port RT for terminating to power supply control chip U1；5th resistance R5 mono-
End ground connection, another port Is for terminating to power supply control chip U1；The end RT of 4th resistance R4 mono- termination power supply control chip U1
Mouthful, the port REF of another termination power supply control chip U1；5th one end capacitor C5 ground connection, another termination power supply control chip U1
The port REF；7th one end capacitor C7 ground connection, the port VCC of another termination power supply control chip U1；6th capacitor C6 mono- termination
Ground, the other end connect the port VCC of driving chip U2 and the anode of the second diode D2 respectively；The cathode of second diode D2 connects
The 8th one end capacitor C8 and the port VB of driving chip U2, the end VS of another termination driving chip U2 of the 8th capacitor C8 are connect respectively
Mouthful；3rd resistor R3 mono- terminates the HO foot of driving chip U2, and the 3rd resistor R3 other end is connected to the first power switch tube Q1's
Gate pole G；The port HIN of power supply control chip U1 is connected to digital regulation resistance module, the power tube switch for issuing STM32
Signal passes to the control terminal of power tube；The port VCC of power supply control chip U1 connects positive 12 volts of DC voltage；Power supply control chip
The OUT terminal mouth of U1 connects the port HIN of driving chip U2；The port GND of power supply control chip U1 is grounded；The LIN of driving chip U2
Port is hanging；The COM port of driving chip U2 is grounded；The port LO of driving chip U2 is hanging；The port VS of driving chip U2 connects
One end of DC-DC conversion module, the second capacitor C2 and third capacitor C3 and the end FB of the first power supply control chip U1 are connected.
Further, the digital regulation resistance module use digital regulation resistance chip U3, the half-bridge output module it is defeated
Controller controls chip U5 using STM32 out, digital regulation resistance chip U3'sEnd,End andEnd is digital electricity respectively
Chip selection signal end, adjustment signal end and the change in resistance direction control signal end of position device, respectively by the IO of STM32 control chip U5
Pin provides chip selection signal, adjustment signal, change direction and controls signal, the VCC termination+5V power supply of digital regulation resistance chip U3.
Further, the power supply control chip U1 uses UC3842 power supply control chip, and the driving chip U2 is used
IR2107 driving chip.
Further, the digital regulation resistance chip U3 uses X9C503 digital regulation resistance chip.
The utility model it is achieved the utility model has the advantages that
The utility model can continuously export that multiple amplitudes are adjustable and pulse voltage signal with high accuracy, can satisfy industry
The practical application request at scene has very strong practical engineering value.
Detailed description of the invention
Fig. 1 is control structure schematic diagram of the invention；
Fig. 2 is DC-DC conversion module of the invention and half-bridge output module structural schematic diagram；
Fig. 3 is transformation control module and drive module structural schematic diagram of the invention；
Fig. 4 is digital regulation resistance structural schematic diagram of the invention.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
As shown in Figure 1, a kind of adjustable Pulased power supply unit of amplitude, including DC power supply, DC-DC conversion module, half-bridge
Output module, digital regulation resistance module and transformation control module, the DC power supply provide 130V direct current and supply electricity to DC-DC transformation mould
Block, digital regulation resistance receives the control signal of o controller, and value of feedback is transferred to transformation control module, transformation control mould
Block controls DC-DC conversion module by value of feedback and exports adjustable voltage, and half-bridge output module includes half-bridge output circuit and output
Controller two parts, o controller issue control signal control half-bridge output circuit with voltage pulse output, (o controller
It can receive external Setting signal, can realize that output voltage amplitude is adjustable without changing hardware configuration in this way).Specific effect
Be: DC-DC conversion section by direct current supply voltage transformation at direct current adjustable electric pressure, believe by control of the half-bridge output module in STM32
Number the lower adjustable pulse voltage of output voltage amplitude being acted on, the feedback signal direct sources of UC3842 are digital regulation resistances, thus
The value of feedback that change digital regulation resistance value can change UC3842 adjusts output voltage amplitude.
As shown in Fig. 2, DC-DC conversion module specifically: including first terminal (direct current input terminal) J1, Second terminal
(outlet terminal) J2, the first power switch tube Q1, the second power switch tube Q2, third power switch tube Q3, first diode D1,
First inductance L1, first capacitor C1, the second capacitor C2, first resistor R1；The one end first terminal J1 and the first power switch tube Q1
One end be connected, the other end is connected to ground；One end of first power switch tube Q1 and first diode D1 cathode and the first inductance
The one end L1 is connected, and the other end is connected with the one end 3rd resistor R3；The other end of first inductance L1 and the one end first capacitor C1 and the
Two one end capacitor C2, second one end power switch tube Q2 are connected；First capacitor C1 cathode, the second capacitor C2 cathode be connected and with
The one end first resistor R1 and third one end power switch tube Q3 are connected；Second one end power switch tube Q2 is connected to third power switch
The one end pipe Q3, the second power switch tube Q2 third end, third power switch tube Q3 third end respectively with respective control signal end
It is connected；The one end first resistor R1 ground connection, one end and the first power supply of the other end and the second capacitor C2 and third capacitor C3 control core
3 feet of piece U1 are connected.
The voltage transformation of import and export is desired amplitude by DC-DC conversion module and half-bridge output module, realizes voltage amplitude
Value transformation and output function, the on-off by controlling Q1 realize transformation, and Q2, Q3 constitute half-bridge output module, and output state connects
It is controlled by STM32 control module.
The structure is other than being able to achieve traditional voltage change function, because can be realized human-computer interaction comprising STM32
The information such as output voltage, electric current are fed back to display portion, and input can be added and set by the communication function of STM32
It is standby, such as key, touch screen, realize that input is controllable, output is considerable.
As shown in figure 3, transformation control module specifically: including second resistance R2,3rd resistor R3, the 4th resistance R4, the
Five resistance R5, third capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8,
Two diode D2, power supply control chip U1, driving chip U2；Second resistance R2 mono- terminates one end of third capacitor C3, the other end
Ground connection；Third one end capacitor C3 is connected with one end of R2, another 1 foot for terminating to power supply control chip U1；4th capacitor C4 mono-
End ground connection, another 2 feet for terminating to power supply control chip U1；9th one end capacitor C9 ground connection is another to terminate to power supply control core
4 feet of piece U1；Tenth one end capacitor C10 ground connection, another 4 feet for terminating to power supply control chip U1；5th resistance R5 mono- termination
Ground, another 3 feet for terminating to power supply control chip U1；4th resistance R4 mono- terminates 4 feet of power supply control chip U1, another termination
8 feet of power supply control chip U1；5th one end capacitor C5 ground connection, 8 feet of another termination power supply control chip U1；7th capacitor C7
One end ground connection, 7 feet of another termination power supply control chip U1；6th one end capacitor C6 ground connection, the 1 of another termination driving chip U2
Foot；8th capacitor C8 mono- terminates 8 feet of driving chip U2,6 feet of another termination driving chip U2；Second diode D2 mono- termination
8 feet of driving chip U2,1 foot of another termination driving chip U2；3rd resistor R3 mono- terminates 7 feet of the first driving chip U2；
2 feet of power supply control chip U1 connect 3 feet of digital regulation resistance U3；7 feet of power supply control chip U1 connect positive 12 volts of DC voltage；
6 feet of power supply control chip U1 connect 2 feet of driving chip U2；5 feet of power supply control chip U1 are grounded；3 feet of driving chip U2
Vacantly；4 feet of driving chip U2 are grounded；5 feet of driving chip U2 are hanging；6 feet of driving chip U2 connect the first power switch tube
The public connecting end of Q1 and first diode D1.
Control module control DC-DC transformation is converted, UC3842 power supply control chip obtains feedback voltage from digital regulation resistance
Signal exports control signal and gives IR2107 driving chip after processing, by the first power in IR2107 control DC-DC conversion module
The on-off of switching tube Q1, to realize the purpose of control output voltage amplitude.
The control chip that the circuit uses integrated power supply control chip UC3842 to change as DC-DC, high with integrated level,
The feature that structure is simple, design is convenient, output effect is good, while using IR2107 as driving chip, make up integrated power supply control
Coremaking piece can not drive the shortcomings that high side switches pipe.Being used cooperatively for UC3842 and IR2107 enormously simplifies DC-DC transformation control
The design of part processed avoids red tape when controlling using single-chip microcontroller.
As shown in figure 4, the digital regulation resistance module uses digital regulation resistance chip U3, the half-bridge output module is used
STM32 controls chip U5, digital regulation resistance chip U3'sPort connects 2 feet of STM32 control chip U5, digital regulation resistance
Chip U3'sPort connects 3 feet of STM32 control chip U5, the port VSS and the port VW/RW of digital regulation resistance chip U3
Ground connection, the port VH/RH of digital regulation resistance chip U3 connect transformation control module, and the port VL/RL of digital regulation resistance chip U3 is outstanding
Sky, digital regulation resistance chip U3'sPort connects 1 foot of chip selection signal of STM32 control chip U5, digital regulation resistance chip U3's
VCC termination+3.3V power supply.
The control of STM32 single-chip microcontroller adjusts the output valve that digital regulation resistance feeds back to UC3842 according to communication the data obtained, from
And realize that output voltage amplitude is adjustable；Q2, Q3 on-off in the half-bridge module of STM32 control simultaneously, realizes pulse output.STM32
Communication interface entrained by control system may be implemented to change pulse under the premise of not changing hardware with the human-computer interaction in the external world
The amplitude of voltage.
Traditional pulse power can only export the pulse voltage of amplitude and specific, if it is desired to change amplitude, then must change hard
Part, including replacement sampling resistor etc., even if in this way, the specification due to resistance resistance value itself limits, can only when electricity one by one
Pressure value can not continuously change output voltage amplitude.This circuit uses source terminal of the digital regulation resistance as feedback signal, a side
Face receives STM32 control, and voltage magnitude change can be completed without changing hardware；On the other hand, digital regulation resistance can be with
Continuous change value of feedback meets some special occasions such as printing industry so that voltage pulse output amplitude be allow continuously to change
Demand.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (6)
1. a kind of adjustable Pulased power supply unit of amplitude, which is characterized in that defeated including DC power supply, DC-DC conversion module, half-bridge
Module, digital regulation resistance module and transformation control module, the DC power supply provide direct current and supply electricity to DC-DC conversion module out, number
Word potentiometer receives the control signal of o controller, and value of feedback is transferred to transformation control module, and transformation control module is logical
Value of feedback control DC-DC conversion module output adjustable voltage is crossed, half-bridge output module includes half-bridge output circuit and output control
Device two parts, o controller issue control signal control half-bridge output circuit with voltage pulse output.
2. the adjustable Pulased power supply unit of a kind of amplitude according to claim 1, which is characterized in that the DC-DC transformation
Module includes direct current input terminal J1, outlet terminal J2, the first power switch tube Q1, the second power switch tube Q2, third power
Switching tube Q3, first diode D1, the first inductance L1, first capacitor C1, the second capacitor C2, first resistor R1；Wherein direct current into
The one end line terminals J1 is connected with the drain D of the first power switch tube Q1, and the other end of direct current input terminal J1 is connected to ground；First
The source S of power switch tube Q1 is connected with first diode D1 cathode and first one end inductance L1, the first power switch tube Q1's
Source S is connected to transformation control module, and the direct current for conveying DC130V supplies electricity to transformation control module；First inductance L1's is another
End is connected with the drain D of first capacitor C1 anode, the second capacitor C2 anode, the second power switch tube Q2 respectively；First capacitor C1
Cathode, the second capacitor C2 cathode be connected and with the one end first resistor R1, the drain D of third power switch tube Q3 and outlet end
Sub- one end J2 is connected；The source S of second power switch tube Q2 is connected to the drain D of third power switch tube Q3, the second power switch
The gate pole G of pipe Q2, the gate pole G of third power switch tube Q3 are connected with respective control signal end respectively；First resistor R1 is to connect
Ground resistance, the other end are connected and are grounded with the anode of first diode D1, while being connected to transformation control module, and resistance R1 is adopted
Sample current value feeds back to control chip.
3. the adjustable Pulased power supply unit of a kind of amplitude according to claim 2, which is characterized in that the transformation controls mould
Block includes second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, third capacitor C3, the 4th capacitor C4, the 5th
Capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the second diode D2, power supply control chip U1, driving chip
U2；Wherein second resistance R2 mono- terminates one end of third capacitor C3, second resistance R2 other end ground connection；The third capacitor C3 other end
It is connected to the COM port of power supply control chip U1；4th one end capacitor C4 ground connection, another end FB for terminating to power supply control chip U1
Mouthful；9th one end capacitor C9 ground connection, another port RT for terminating to power supply control chip U1；Tenth one end capacitor C10 ground connection, separately
One end is connected to the port RT of power supply control chip U1；5th one end resistance R5 ground connection is another to terminate to power supply control chip U1's
The port Is；4th resistance R4 mono- terminates the port RT of power supply control chip U1, the end REF of another termination power supply control chip U1
Mouthful；5th one end capacitor C5 ground connection, the port REF of another termination power supply control chip U1；7th one end capacitor C7 ground connection is another
The port VCC of termination power control chip U1；6th one end capacitor C6 ground connection, the other end connect the end VCC of driving chip U2 respectively
The anode of mouth and the second diode D2；The cathode of second diode D2 connects meets the 8th one end capacitor C8 and driving chip U2 respectively
The port VB, the 8th capacitor C8 it is another termination driving chip U2 the port VS；The HO of the termination of 3rd resistor R3 mono- driving chip U2
Foot, the 3rd resistor R3 other end are connected to the gate pole G of the first power switch tube Q1；The port HIN of power supply control chip U1 connects
To digital regulation resistance module, the power tube switching signal for issuing STM32 passes to the control terminal of power tube；Power supply controls core
The port VCC of piece U1 connects positive 12 volts of DC voltage；The OUT terminal mouth of power supply control chip U1 connects the port HIN of driving chip U2；
The port GND of power supply control chip U1 is grounded；The port LIN of driving chip U2 is hanging；The COM port of driving chip U2 is grounded；
The port LO of driving chip U2 is hanging；The port VS of driving chip U2 connects DC-DC conversion module, the second capacitor C2 and third electricity
The end FB of one end and the first power supply control chip U1 for holding C3 is connected.
4. the adjustable Pulased power supply unit of a kind of amplitude according to claim 1, which is characterized in that the digital regulation resistance
Module uses digital regulation resistance chip U3, and the o controller of the half-bridge output module controls chip U5, number using STM32
Potentiometer chip U3'sEnd,End andEnd is the chip selection signal end, adjustment signal end and resistance value of digital regulation resistance respectively
Change direction control signal end provides chip selection signal, adjustment signal, variation side by the I/O pin of STM32 control chip U5 respectively
To control signal, the VCC termination+5V power supply of digital regulation resistance chip U3.
5. the adjustable Pulased power supply unit of a kind of amplitude according to claim 3, which is characterized in that the power supply controls core
Piece U1 uses UC3842 power supply control chip, and the driving chip U2 uses IR2107 driving chip.
6. the adjustable Pulased power supply unit of a kind of amplitude according to claim 4, which is characterized in that the digital regulation resistance
Chip U3 uses X9C503 digital regulation resistance chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821778374.6U CN208971391U (en) | 2018-10-31 | 2018-10-31 | A kind of adjustable Pulased power supply unit of amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821778374.6U CN208971391U (en) | 2018-10-31 | 2018-10-31 | A kind of adjustable Pulased power supply unit of amplitude |
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| Publication Number | Publication Date |
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| CN208971391U true CN208971391U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821778374.6U Expired - Fee Related CN208971391U (en) | 2018-10-31 | 2018-10-31 | A kind of adjustable Pulased power supply unit of amplitude |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030473A (en) * | 2019-12-16 | 2020-04-17 | 华帝股份有限公司 | Pulse-adjustable power output circuit and failure detection method thereof |
-
2018
- 2018-10-31 CN CN201821778374.6U patent/CN208971391U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030473A (en) * | 2019-12-16 | 2020-04-17 | 华帝股份有限公司 | Pulse-adjustable power output circuit and failure detection method thereof |
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Granted publication date: 20190611 |