CN206807291U - A kind of electric power electronic module of two-way chopper control - Google Patents
A kind of electric power electronic module of two-way chopper control Download PDFInfo
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- CN206807291U CN206807291U CN201621463314.6U CN201621463314U CN206807291U CN 206807291 U CN206807291 U CN 206807291U CN 201621463314 U CN201621463314 U CN 201621463314U CN 206807291 U CN206807291 U CN 206807291U
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Abstract
The utility model relates to a kind of electric power electronic module of two-way chopper control, including for receiving the pressure regulation signal interface circuit of two-way voltage signal, the pwm control circuit for exporting two-way pwm control signal, the drive circuit for exporting four road PWM drive signals and for exporting the two-way synchronous rectification BUCK circuits of two-way high frequency chopping PWM voltages and voltage x current sample circuit for gathering two-way high frequency chopping PWM output voltage signals.The utility model uses two-way PWM independent controls, two-way voltage regulation circuit of chopping integrates, average output voltage is controlled by duty cycle adjustment, the rotating speed of flexible modulation on-board air conditioner evaporation fan and condensation fan, module small volume, it is compact-sized efficient, it is easily installed, is advantageous to onboard system most optimum distribution of resources.
Description
Technical field
A kind of electric power electronic module of two-way chopper control is the utility model is related to, belongs to vehicle-mounted DC-DC power source technology neck
Domain.
Background technology
New-energy automobile enters the high speed development stage at present, and country puts into effect the hair that various encouragement policies support new-energy automobile
Exhibition.To energy-saving and emission-reduction, green it is significant.New energy on-board air conditioner is important part and larger energy consumption system
System, to improve the endurance of new-energy automobile, save electric energy, it is necessary to mounted air conditioner system is risen using power-saving technology
Level, drive compressor of air conditioner for example with variable-frequency driving technique, using direct current chopping regulating speed come drive air conditioner condensation blower fan and
Evaporation fan etc..
The fan speed regulation product that currently there are has:
1st, resistance-type speed governing.The principle of this mode of speed regulation is that serial adjustable hinders in blower fan current supply circuit, passes through electricity
The different stalls of resistance realize partial pressure current limliting and then carry out speed governing.The shortcomings that this mode is resistance high energy consumption, and caloric value is big, and
Stepless speed regulation can not be realized.
2nd, chopping regulating speed.This mode of speed regulation mainly utilizes power electronic devices HF switch, to DC input voitage
Copped wave is carried out, substantially smooth DC current is obtained after the filtering of blower fan self-induction.The advantages of this mode is efficiency high, can
Stepless speed regulation.Shortcoming is to need to turn the DC-DC converter of low pressure with the use of, it is necessary to independently installed position and match somebody with somebody with on-board high-voltage
Line, and can only single channel output, be unfavorable for onboard system most optimum distribution of resources.
The content of the invention
The purpose of this utility model provides a kind of compact-sized, small volume, is easily installed, and can carry out that two-way is independently stepless to be cut
A kind of electric power electronic module of two-way chopper control of ripple pressure regulation.
The utility model is that the technical scheme for reaching above-mentioned purpose is:A kind of electric power electronic module of two-way chopper control,
It is characterized in that:Including the pressure regulation signal interface circuit for receiving two-way voltage signal, for exporting two-way pwm control signal
Pwm control circuit, for export four road PWM drive signals drive circuit and for export two-way high frequency chopping PWM electricity
The two-way synchronous rectification BUCK circuits of pressure and the voltage x current for gathering two-way high frequency chopping PWM output voltage signals sample electricity
Road, described pressure regulation signal interface circuit adjust the two-way voltage signal of reception the first pressure regulation signal of filtered rear output and second
Signal is pressed, the input of pwm control circuit is connected with the first pressure regulation signal and the second pressure regulation signal, and two-way pressure regulation signal is entered
Row adjustment and two-way pwm signal is exported when reaching stable state through negative-feedback, the input of drive circuit and pwm control circuit
Output end connects, for receiving the pwm signal of pwm control circuit and the driving letter of output driving two-way high-frequency chopper action
Number, the signal end of two-way synchronous rectification BUCK circuits and the output end of drive circuit connect, and two-way synchronous rectification BUCK circuits
Two-way high-frequency chopper export independent high frequency chopping PWM voltage signals through duty cycle adjustment, born to air conditioner condensation blower fan
Carry and evaporation fan load supplying, two-way high-frequency chopper output voltage signal connect PWM controls through voltage x current sample circuit
The signal end of circuit.
The utility model employs pressure regulation signal interface circuit, pwm control circuit, drive circuit and two-way synchronous rectification
BUCK circuits and voltage x current sample circuit, and two-way voltage regulation circuit of chopping is integrated, module volume is reduced, it is compact-sized
Efficiently, it is easily installed, is advantageous to onboard system most optimum distribution of resources.The utility model uses two-way PWM independent controls, by accounting for
Sky controls average output voltage than regulation, can carry out two-way independently stepless chopper control, flexible to adjust on-board air conditioner evaporation
The rotating speed of blower fan and condensation fan.The utility model uses synchronous rectification BUCK circuits, and continued flow tube conduction voltage drop is small, overall efficiency
It is high.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structured flowchart of the electric power electronic module of two-way chopper control of the utility model.
Fig. 2 is the electrical schematic diagram of the utility model two-way synchronous rectification BUCK circuits.
Fig. 3 is the electrical schematic diagram of pressure regulation signal interface circuit of the present utility model, pwm control circuit and drive circuit.
Fig. 4 is the electrical schematic diagram of the utility model first voltage current sampling circuit.
Fig. 5 is the electrical schematic diagram of the utility model second voltage current sampling circuit.
Embodiment
As shown in Figure 1, the electric power electronic module of a kind of two-way chopper control of the present utility model, including for receiving two-way
The pressure regulation signal interface circuit of voltage signal, the pwm control circuit for exporting two-way pwm control signal, for exporting four tunnels
The drive circuit of PWM drive signal and for export two-way high frequency chopping PWM voltages two-way synchronous rectification BUCK circuits and
For gathering the voltage x current sample circuit of two-way high frequency chopping PWM output voltage signals.
As shown in Fig. 1,3, the utility model pressure regulation signal interface circuit is filtered rear defeated by the two-way voltage signal of reception
Go out the first pressure regulation signal and the second pressure regulation signal, pwm control circuit will be sent to after outside input pressure regulation signal transacting.This practicality is new
The input of the pwm control circuit of type is connected with the first pressure regulation signal and the second pressure regulation signal, and two-way pressure regulation signal is carried out
Adjust and export two-way pwm signal when reaching stable state through negative-feedback, pwm control circuit is exported pwm control signal to drive
Dynamic circuit.The input of drive circuit of the present utility model and the output end of pwm control circuit connect, for receiving PWM controls
The drive signal of pwm signal and output driving two-way the high-frequency chopper action of circuit, make drive circuit output PWM drivings
Signal switchs tube grid, the signal end and drive circuit of two-way synchronous rectification BUCK circuits accordingly to synchronous rectification BUCK circuits
Output end connection, and the two-way high-frequency chopper of two-way synchronous rectification BUCK circuits exports independent height through duty cycle adjustment
Frequency copped wave PWM voltage signals, to air conditioner condensation fans load and evaporation fan load supplying, two-way synchronous rectification BUCK circuits
Input connect input direct-current bus, two-way high-frequency chopper output voltage signal connects PWM controls through voltage x current sample circuit
The signal end of circuit, and voltage x current sample circuit is using conventional divider resistance mode and amplifier collection amplifying circuit.
As shown in Figure 2, the utility model two-way synchronous rectification BUCK circuits include that switching tube Q1 and Q3 concatenation are formed the
Second high-frequency chopper and sampling resistor RS1 and RS2 one high-frequency chopper, switching tube Q2 and Q4 in series, body
Diode D1~D4 is connected on each between corresponding switching tube Q1~Q4 source electrode and drain electrode, and switching tube Q1 drain electrode connects input voltage
Positive pole Vin+, source electrode connect switching tube Q3 drain electrode, and switching tube Q1 source electrode is cut with connecing first at switching tube Q3 drain junction
Ripple output voltage positive pole Vout1+, switching tube Q3 source electrode meet the sampled resistance RS1 of input voltage negative pole Vin-, another way all the way
Meet the first copped wave output voltage negative pole Vout1-, drive circuit export drive signal for controlling switch pipe Q1 and Q3 with it is right
The switching tube Q1 answered connects with Q3 grid.As shown in Figure 2, the utility model switching tube Q2 drain electrode connects input voltage positive pole
Vin+, source electrode connect switching tube Q4 drain electrode, and switching tube Q2 source electrode is defeated with connecing the second copped wave at switching tube Q4 drain junction
Go out positive polarity Vout2+, switching tube Q4 source electrode meets the sampled resistance RS2 of input voltage negative pole Vin-, another way and connects all the way
Two copped wave output voltage negative pole Vout2-, and drive circuit is exported and opened for controlling switch pipe Q2 and Q4 drive signal with corresponding
Close pipe Q2 to connect with Q4 grid, due to two-way high-frequency chopper independent control, and controlled by the regulation of dutycycle flat
The rotating speed of equal output voltage, energy flexible modulation on-board air conditioner evaporation fan and condensation fan.
As shown in Figure 3, the utility model pwm control circuit includes the first pwm chip U1 and the second pwm chip
U2, drive circuit includes the first drive control chip U3 and the second drive control chip U4, and pressure regulation signal interface circuit includes
Signal terminal J1 and the first RC filter circuits and the 2nd RC filter circuits, signal terminal J1 all the way through the first RC filter circuits
The first pwm chip U1 the first inversion signal input is connect, the first RC filter circuits are by filter resistance R1 and filter capacitor
C1 is formed, filter capacitor C1 welding system reference grounds;Signal terminal J1 another way meets the 2nd PWM through the 2nd RC filter circuits
Control chip U2 the second inversion signal input, the 2nd RC filter circuits are made up of filter resistance R2 and filter capacitor C2, together
Sample filter capacitor C2 welding system reference grounds.
As shown in Figure 3, the first pwm chip of the utility model U1 Rt pins, Ct pins and SS pins and timing electricity
Hinder RT1, timing capacitor CT1 and delay and open electric capacity CS1 connections and welding system reference ground, the first pwm chip U1 OUT A draw
Pin and OUT B pins connect the first drive control chip U3 input pin In, the first drive control chip through resistance RG1 and RG2
The Q1 and Q3 of first high-frequency chopper grid corresponding to U3 two output signal pins connection.Second pwm chip
U2 Rt pins, Ct pins and SS pins is connected simultaneously welding system ginseng with timing resistor RT2, timing capacitor CT2 and the slow electric capacity CS2 that opens
Ground is examined, the second pwm chip U2 OUT A pins and OUT B pins connect the second drive control chip through resistance RG3 and RG4
Second high-frequency chopper corresponding to U4 input pin In, the second drive control chip U4 two-way output signal pin connection
Switching tube Q2 and Q4 grid.In outside input pressure regulation signal, pwm control circuit can be adjusted according to actual output voltage
The whole corresponding pwm signal of output, and stable state is reached by negative-feedback, correspond to the size of outside pressure regulation signal averaging
Corresponding average output voltage value, so as to reach output pressure regulation signal, and then pass through duty through two-way synchronous rectification BUCK circuits
Than regulation, to control average output voltage, adjustment load blower fan wind speed can flexible modulation on-board air conditioner evaporation fan and condensating wind
The rotating speed of machine.
As shown in Fig. 4,5, the utility model voltage x current sample circuit uses first voltage current sampling circuit and second
Voltage x current sample circuit, the first high-frequency chopper output voltage positive pole Vout1+ export electricity through resistance R3 and resistance R4 partial pressures
Sampled signal is pressed, electric capacity C3 is attempted by resistance R4 both ends and is grounded, the voltage sampling signal of the first high-frequency chopper is provided
To pwm control circuit.As shown in Figure 4, the first high-frequency chopper of the utility model output voltage negative pole Vout1- is through resistance R7
Transport and placing device U5 in-phase input end is connect, and transport and placing device U5 inverting input is grounded through resistance R6, resistance RS1 connects the first high frequency
Between chopper circuit output voltage negative pole Vout1- and ground, resistance R5 is connected across transport and placing device U5 in-phase input end and output end,
The current sampling signal of first high-frequency chopper is supplied to pwm control circuit.Equally, as shown in Figure 5, the utility model
Second high-frequency chopper output voltage positive pole Vout2+ is through resistance R8 and resistance R9 pressure-dividing output voltage sampled signals, electric capacity C4
It is attempted by resistance R9 both ends and is grounded, the voltage sampling signal of the second high-frequency chopper is supplied to pwm control circuit.See figure
Shown in 5, the second high-frequency chopper of the utility model output voltage negative pole Vout2- connects transport and placing device U6 same phase through resistance R12
Input, and transport and placing device U6 inverting input is grounded through resistance R11, resistance RS2 connects the second high-frequency chopper output voltage
Between negative pole Vout2- and ground, resistance R10 is connected across transport and placing device U6 in-phase input end and output end, by the second high frequency chopping electricity
The current sampling signal on road is supplied to pwm control circuit.
The utility model pressure regulation signal interface circuit, drive circuit, pwm control circuit, two-way synchronous rectification BUCK circuits
Be welded on metal substrate printed substrate with voltage x current sample circuit, can by the back side of metal substrate printed substrate with
Vehicle-mounted radiator closely connects, and reaches high efficiency and heat radiation, reduces element manipulation temperature, improves module life.
Claims (4)
- A kind of 1. electric power electronic module of two-way chopper control, it is characterised in that:Including the tune for receiving two-way voltage signal Press signal interface circuit, the pwm control circuit for exporting two-way pwm control signal, for exporting four road PWM drive signals Drive circuit and for exporting the two-way synchronous rectification BUCK circuits of two-way high frequency chopping PWM voltages and for gathering two-way height The voltage x current sample circuit of frequency copped wave PWM output voltage signals, described pressure regulation signal interface circuit are electric by the two-way of reception The first pressure regulation signal of output and the second pressure regulation signal after pressing signal filtered, the input of pwm control circuit and the first pressure regulation are believed Two-way is exported when number being connected with the second pressure regulation signal, and two-way pressure regulation signal being adjusted and reaches stable state through negative-feedback Pwm signal, the input of drive circuit and the output end of pwm control circuit connect, and the PWM for receiving pwm control circuit believes Number and the action of output driving two-way high-frequency chopper drive signal, the signal end of two-way synchronous rectification BUCK circuits and driving The output end connection of circuit, and the two-way high-frequency chopper of two-way synchronous rectification BUCK circuits exports independently through duty cycle adjustment High frequency chopping PWM voltage signals, to air conditioner condensation fans load and evaporation fan load supplying, two-way high-frequency chopper is defeated Go out the signal end that voltage signal connects pwm control circuit through voltage x current sample circuit.
- A kind of 2. electric power electronic module of two-way chopper control according to claim 1, it is characterised in that:Described two-way Synchronous rectification BUCK circuits include the first high-frequency chopper, switching tube Q2 and Q4 the series connection structure that switching tube Q1 and Q3 concatenation are formed Into the second high-frequency chopper and sampling resistor RS1 and RS2, switching tube Q1 drain electrode connect input voltage positive pole Vin+, source Pole connects switching tube Q3 drain electrode, and switching tube Q1 source electrode at switching tube Q3 drain junction with connecing the first copped wave output voltage just Pole Vout1+, switching tube Q3 source electrode meet the sampled resistance RS1 of input voltage negative pole Vin-, another way all the way, and to connect the first copped wave defeated Go out voltage negative pole Vout1-, drive circuit exports the drive signal and corresponding switching tube Q1 and Q3 for controlling switch pipe Q1 and Q3 Grid connection;The drain electrode of the switching tube Q2 meets input voltage positive pole Vin+, source electrode connects switching tube Q4 drain electrode, and switching tube Q2 source electrode at switching tube Q4 drain junction with meeting the second copped wave output voltage positive pole Vout2+, and switching tube Q4 source electrode is all the way Meet the sampled resistance RS2 of input voltage negative pole Vin-, another way and connect the second copped wave output voltage negative pole Vout2-, and drive circuit Export and connected for controlling switch pipe Q2 and Q4 drive signal with corresponding switching tube Q2 and Q4 grid.
- A kind of 3. electric power electronic module of two-way chopper control according to claim 1 or 2, it is characterised in that:Described Pwm control circuit includes the first pwm chip U1 and the second pwm chip U2, and described drive circuit includes first and driven Dynamic control chip U3 and the second drive control chip U4, described pressure regulation signal interface circuit include signal terminal J1 and the first RC Filter circuit and the 2nd RC filter circuits, signal terminal J1's meets the first pwm chip U1 through the first RC filter circuits all the way The first inversion signal input, signal terminal J1 another way connects the second pwm chip U2's through the 2nd RC filter circuits Second inversion signal input, the first pwm chip U1 Rt pins, Ct pins and SS pins and timing resistor RT1, timing Electric capacity CT1 and it is slow open electric capacity CS1 connections simultaneously welding system reference ground, the first pwm chip U1 OUT A pins and OUT B draw Pin connects the first drive control chip U3 input pin In, the first drive control chip U3 two outputs through resistance RG1 and RG2 The switching tube Q1 and Q3 of first high-frequency chopper grid corresponding to signal pins connection;Second pwm chip U2 Rt Pin, Ct pins and SS pins are connected simultaneously welding system reference ground with timing resistor RT2, timing capacitor CT2 and the slow electric capacity CS2 that opens, Second pwm chip U2 OUT A pins and OUT B pins connects the defeated of the second drive control chip U4 through resistance RG3 and RG4 Enter the second high-frequency chopper switching tube corresponding to pin In, the second drive control chip U4 two-way output signal pin connection Q2 and Q4 grid.
- A kind of 4. electric power electronic module of two-way chopper control according to claim 1 or 2, it is characterised in that:Described Two-way synchronous rectification BUCK circuits, pwm control circuit, drive circuit, voltage x current sample circuit and pressure regulation signaling interface electricity Road is welded on metal substrate printed substrate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201621463314.6U CN206807291U (en) | 2016-12-29 | 2016-12-29 | A kind of electric power electronic module of two-way chopper control |
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CN201621463314.6U CN206807291U (en) | 2016-12-29 | 2016-12-29 | A kind of electric power electronic module of two-way chopper control |
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CN206807291U true CN206807291U (en) | 2017-12-26 |
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CN201621463314.6U Active CN206807291U (en) | 2016-12-29 | 2016-12-29 | A kind of electric power electronic module of two-way chopper control |
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- 2016-12-29 CN CN201621463314.6U patent/CN206807291U/en active Active
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