CN208241579U - Asymmetric double push-pull circuit and electrical equipment - Google Patents
Asymmetric double push-pull circuit and electrical equipment Download PDFInfo
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- CN208241579U CN208241579U CN201820967169.8U CN201820967169U CN208241579U CN 208241579 U CN208241579 U CN 208241579U CN 201820967169 U CN201820967169 U CN 201820967169U CN 208241579 U CN208241579 U CN 208241579U
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Abstract
It includes: isolated drive circuit that the utility model, which discloses a kind of asymmetric double push-pull circuit and electrical equipment, the asymmetric double push-pull circuit, and controlled end is connect with the first input interface, and first input end is for accessing the first DC power supply, the second input end grounding；It is configured as, when receiving first control signal, exports corresponding driving signal；First push-pull circuit, controlled end are connect with the output end with isolated drive circuit, and first input end is connect for accessing the first DC power supply, the second input end grounding, output end with output interface；It is configured as, when receiving driving signal, exports the first direct current power source voltage or no-voltage；Second push-pull circuit, controlled end are connect with the second input interface, and first input end is connect for accessing the second DC power supply, the second input end grounding, output end with output interface；It is configured as, when receiving second control signal, exports the second direct current power source voltage or no-voltage.
Description
Technical field
The utility model relates to electronic circuit technology field, in particular to a kind of asymmetric double push-pull circuit and electric appliance are set
It is standby.
Background technique
Currently, the plug-in electrical part in electrical equipment part, such as LED lamp panel, solenoid valve, it needs that positive and negative rotation direct current is arranged mostly
Electric current realizes its product function to switch positive and negative input power, and existing driving circuit common practices is to recommend electricity using two groups
Road is driven, or is further added by one group of connecting line and is individually controlled, and complexity is self-evident.Further, since recommending
Circuit be in general all it is arranged symmetrically, i.e. identical low and high level input cannot achieve the demand of product differentiation.
Utility model content
The main purpose of the utility model is to propose a kind of asymmetric double push-pull circuit and electrical equipment, it is intended to which output is different
Supply voltage to power load, when realizing positive and negative rotation, the difference of forward voltage and backward voltage.
To achieve the above object, the utility model proposes a kind of asymmetric double push-pull circuit, the asymmetric double recommends electricity
Road includes:
First input interface, the second input interface and output interface；
Isolated drive circuit, controlled end are connect with first input interface, and first input end is for accessing first
DC power supply, the second input end grounding；The isolated drive circuit is configured as, defeated when receiving first control signal
Corresponding driving signal out；
First push-pull circuit, controlled end are connect with the output end of the isolated drive circuit, and first input end is used
In accessing first DC power supply, the second input end grounding, output end is connect with the output interface；Described first pushes away
It draws circuit to be configured as, when receiving the driving signal, exports first direct current power source voltage or no-voltage；
Second push-pull circuit, controlled end are connect with second input interface, and first input end is for accessing second
DC power supply, the second input end grounding, output end are connect with the output interface；Second push-pull circuit is configured
To export second direct current power source voltage or no-voltage when receiving second control signal.
Optionally, the isolated drive circuit includes the first electronic switch and first resistor, first electronic switch
Controlled end is the controlled end of the isolated drive circuit, the first conducting end and the first resistor of first electronic switch
Common end is the output end of isolated drive circuit, and the second conducting end of first electronic switch is the isolated drive circuit
Second input terminal；The second end of the first resistor is the first input end of the isolated drive circuit.
Optionally, first push-pull circuit includes the second electronic switch and third electronic switch, second electronic cutting
The controlled end of the controlled end of pass and the third electronic switch is the controlled end of first push-pull circuit, second electronic cutting
The first conducting end closed is the first input end of first push-pull circuit, the second conducting end of second electronic switch and institute
The common end for stating the first conducting end of third electronic switch is the output end of first push-pull circuit；The third electronic switch
The second conducting end be first push-pull circuit the second input terminal.
Optionally, second electronic switch is NPN type triode or N-MOS pipe；And/or
The third electronic switch is PNP type triode or P-MOS pipe.
Optionally, first push-pull circuit further includes the first clamp diode and the second clamp diode, and described first
The cathode of clamp diode is connect with the first conducting end of second electronic switch, the anode of first clamp diode and
The cathode of second clamp diode respectively with the second conducting end of second electronic switch and the third electronic switch
The first conducting end common end connection, the second of the anode of second clamp diode and the third electronic switch be conductive
End connection.
Optionally, second push-pull circuit includes the 4th electronic switch and the 5th electronic switch, the 4th electronic cutting
The controlled end of the controlled end of pass and the 5th electronic switch is the controlled end of second push-pull circuit, the 4th electronic cutting
The first conducting end closed is the first input end of second push-pull circuit, the second conducting end of the 4th electronic switch and institute
The common end for stating the first conducting end of the 5th electronic switch is the output end of second push-pull circuit；5th electronic switch
The second conducting end be second push-pull circuit the second input terminal.
Optionally, the 4th electronic switch is NPN type triode；And/or the 5th electronic switch is positive-negative-positive three
Pole pipe.
Optionally, first push-pull circuit further includes third clamp diode and the 4th clamp diode, the third
The cathode of clamp diode is connect with the first conducting end of the 4th electronic switch, the anode of the third clamp diode and
The cathode of 4th clamp diode respectively with the second conducting end of the 4th electronic switch and the 5th electronic switch
The first conducting end common end connection, the second of the anode of the 4th clamp diode and the 5th electronic switch be conductive
End connection.
The utility model also proposes a kind of electrical equipment, including master controller, power load and as described above asymmetric
Double push-pull circuit, the first control terminal of the master controller are connect with the first input interface of the asymmetric double push-pull circuit；
Second control terminal of the master controller is connect with the second input interface of the asymmetric double push-pull circuit；The asymmetric double
The output interface of push-pull circuit is connect with the power end of the power load.
Optional bottom, the electrical equipment are electromagnetic oven perhaps electric cooker or electric pressure cooking saucepan.
The first input interface, the second input interface is arranged in the utility model asymmetric double push-pull circuit, and defeated by first
The control signal of incoming interface and the access Master controller output of the second input interface, is pushed away with controlling isolated drive circuit and second
Circuit work is drawn, to export corresponding driving signal, and then drive when isolated drive circuit receives first control signal
The work of first push-pull circuit, and corresponding first direct current power source voltage or no-voltage are exported according to driving signal；And second
When push-pull circuit receives second control signal, second direct current power source voltage or no-voltage are exported, in this way, making first to push away
The different supply voltage of multiple groups voltage value can be exported to output interface, to adapt to different electricity consumptions by drawing circuit and the second push-pull circuit
Different supply voltage demands is needed when being supported on forward and reverse.The utility model drives isolation circuit by being arranged, and next pair
First control signal carries out isolation enhanced processing, and the voltage for realizing the first push-pull circuit and the output of the second push-pull circuit is different,
To make the driving capability of the first push-pull circuit be greater than the second push-pull circuit, the first push-pull circuit and the second push-pull circuit without pair
Claim setting, so that asymmetric double push-pull circuit be made to export different supply voltages to power load, when realizing positive and negative rotation, positive electricity
The difference of pressure and backward voltage.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the functional block diagram of one embodiment of the utility model asymmetric double push-pull circuit；
Fig. 2 is the electrical block diagram of one embodiment of Fig. 1 jackshaft asymmetric double push-pull circuit.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture)
Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the
Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning
The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one
A this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Based on personnel can be realized, this technical side will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of case is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of asymmetric double push-pull circuits.
Referring to FIG. 1 and FIG. 2, in an embodiment of the utility model, which includes:
First input interface IO1, the second input interface IO2 and output interface J1；
Isolated drive circuit 10, controlled end are connect with the first input interface IO1, and first input end is for accessing
First DC power supply VCC, the second input end grounding, the isolated drive circuit 10 are configured as, and are receiving the first control
When signal, corresponding driving signal is exported；
First push-pull circuit 20, for controlled end for inputting the driving signal, first input end is described for accessing
First DC power supply VCC, the second input end grounding, output end are connect with the output interface J1, and described first recommends electricity
Road 20 is configured as, and when receiving the driving signal, exports the first DC power supply VCC voltage or no-voltage；
Second push-pull circuit 30, controlled end are connect with the second input interface IO2, and first input end is for accessing
Second DC power supply VDD, the second input end grounding, output end are connect with the output interface J1, and described second recommends electricity
Road 30 is configured as, and when receiving second control signal, exports the second DC power supply vdd voltage or no-voltage.
In the present embodiment, the first input interface IO1 and the second input interface IO2 are used to external master controller, main control
The first control signal of device output is exported through the first input interface IO1 to isolated drive circuit 10, to control isolated drive circuit
The second control signal of 10 work, master controller output is then exported via the second input interface IO2 to the second push-pull circuit 30, with
Control the work of the second push-pull circuit 30.In some embodiments, master controller can be the main controls such as single-chip microcontroller, DSP, FPGA
Device, it is to be understood that it is relatively low that the supply voltage of the master controllers such as single-chip microcontroller, DSP, FPGA is generally 3.3V or 5V etc.
Supply voltage, therefore the voltage value of the control signal of its output is generally also 3.3V or 5V.First control of master controller output
Signal processed and second control signal all have two states of high level and low level, and first control signal and second control signal can
Think pulse signal, and pulse signal can be the identical square-wave pulse signal of frequency, first control signal and/or the second control
The duty ratio of signal processed is adjustable, can be 50%, but be not limited to 50%.Output interface J1 is used to access the power supply of power load
End, the power load can be motor, solenoid valve or LED lamp panel.First DC power supply VCC's and the second DC power supply VDD
Voltage may be the same or different, and the first DC power supply VCC and the second DC power supply VDD is chosen as difference in this implementation,
The voltage of first DC power supply VCC can arbitrary value between 9V~18V, concretely 12V, 15V, 18V, the second direct current
Source VDD is chosen as the power supply of master controller, therefore the voltage of the second DC power supply VDD is chosen as 3.3V or 5V.Below
The supply voltage of first DC power supply VCC output is labeled as VCC, the supply voltage of the second DC power supply VDD output is marked
For VDD.In order to export the supply voltage of different voltages value to output interface J1, isolated drive circuit 10 exports master controller
After control signal carries out isolation amplification, bridge arm driving switch is exported electric higher than the power supply of master controller supply voltage
It is depressed into output interface J1.
Wherein, when the first control signal of the first input interface IO1 input is high level, 10 work of isolated drive circuit
Make, and the first control signal of high level be isolated and after enhanced processing, exports low level driving signal and push away to first
Circuit 20 is drawn, so that the first push-pull circuit 20 works according to the low level driving signal, and exports no-voltage, namely output 0V
Voltage.
When the first control signal of the first input interface IO1 input is low level, isolated drive circuit 10 does not work, phase
When the driving signal in output high level is to the first push-pull circuit 20, the first push-pull circuit 20 is according to the low level driving signal
Work, and export the first DC power supply VCC voltage namely VCC.
When the second control signal of the second input interface IO2 input is high level signal, the output of the second push-pull circuit 30
Second DC power supply vdd voltage namely VDD.
When the second control signal of the second input interface IO2 input is low level, zero electricity of the second push-pull circuit 30 output
Pressure, namely output 0V voltage.
The voltage difference that output interface J1 is exported according to the first push-pull circuit 20 with the second push-pull circuit 30, and export different
Voltage value power load, specifically, when the first push-pull circuit 200V voltage, the second push-pull circuit 30 exports the second direct current
When power supply vdd voltage VDD, the voltage of output interface J1 is 0-VDD；When the first push-pull circuit 20 exports the first DC power supply VCC
Voltage VCC, when the second push-pull circuit 30 exports 0V voltage, the voltage of output interface J1 is VCC-0V；When the first push-pull circuit 20
The first DC power supply VCC voltage VCC is exported, when the second push-pull circuit 30 exports the second DC power supply vdd voltage VDD, output is connect
The voltage of mouth J1 is VCC-VDD.In practical applications, it such as when driving LED lamp panel work, when exporting VCC, can control
LED lamp panel outer ring lights, and when output-VDD, then the lamp version inner ring that can control LED lights, or when exporting VCC-VDD, can
It is bright to control LED lamp panel outer ring half.Or in driving motor work, when exporting VCC, it can be rotated forward with driving motor (fast
Speed), and when output-VDD, then driving motor reversion (at a slow speed).
The first input interface IO1, the second input interface IO2 is arranged in the utility model asymmetric double push-pull circuit, and passes through
The control signal of first input interface IO1 and the second input interface IO2 access Master controller output, to control isolation drive
Circuit 10 and the work of the second push-pull circuit 30, so that output phase is answered when isolated drive circuit 10 receives first control signal
Driving signal, and then drive the work of the first push-pull circuit 20, and corresponding first DC power supply VCC is exported according to driving signal
Voltage or no-voltage；And when the second push-pull circuit 30 receives second control signal, the second DC power supply VDD is exported
Voltage or no-voltage, in this way, it is different to allow the first push-pull circuit 20 and the second push-pull circuit 30 to export multiple groups voltage value
Supply voltage needs different supply voltage demands to output interface J1 to adapt to different power loads in forward and reverse.
The utility model is realized first and pushed away by setting driving isolation circuit to carry out isolation enhanced processing to first control signal
It is different to draw the voltage that circuit 20 and the second push-pull circuit 30 export, to make the driving capability of the first push-pull circuit 20 greater than second
Push-pull circuit 30, the first push-pull circuit 20 and the second push-pull circuit 30 are without being symmetrical arranged, to make asymmetric double push-pull circuit
Different supply voltages is exported to power load, when realizing positive and negative rotation, the difference of forward voltage and backward voltage.
It is understood that the utility model asymmetric double push-pull circuit is all made of discrete electronic component to realize, electricity
Line structure is simple, and cost is relatively low, can be applied to electric pressure cooking saucepan, electricity puts pot, soy bean milk making machine etc. has motor, LED lamp panel, solenoid valve
Electrical equipment in.In addition, multichannel different power voltage can be realized without increasing other circuit structures in the utility model
Output, when meeting power load positive and negative rotation, to the difference of supply voltage requirement.
Referring to FIG. 1 and FIG. 2, in an alternative embodiment, the isolated drive circuit 10 include the first electronic switch Q1 and
The controlled end of first resistor R1, the first electronic switch Q1 are the controlled end of the isolated drive circuit 10, first electricity
The common end of the first conducting end of sub switch Q1 and the first resistor R1 are the output end of isolated drive circuit 10, described first
The second conducting end of electronic switch Q1 is the second input terminal of the isolated drive circuit 10；The second end of the first resistor R1
For the first input end of the isolated drive circuit 10.
In the present embodiment, the first electronic switch Q1 can be triode, be also possible to optocoupler, and the present embodiment is chosen as NPN
Type triode.Wherein, the base stage of NPN type triode is the controlled end of the first electronic switch Q1, and the current collection of NPN type triode is extremely
The first conducting end of first electronic switch Q1, transmitting extremely the second conducting end of the first electronic switch Q1 of NPN type triode.?
When receiving the first control signal of high level, NPN type triode conducting, thus by the controlled termination of the first push-pull circuit 20
Ground, also i.e. by the controlled end voltage pull-down of the first push-pull circuit 20.When receiving low level first control signal, NPN type
Triode cut-off, at this point, first resistor R1 and the first DC power supply VCC, is equivalent to pull-up resistor, thus by the first push-pull circuit
20 controlled termination power, also i.e. by the controlled end voltage high of the first push-pull circuit 20.
Referring to FIG. 1 and FIG. 2, in an alternative embodiment, first push-pull circuit 20 include the second electronic switch Q2 and
The common end of the controlled end of third electronic switch Q3, the controlled end of the second electronic switch Q2 and the third electronic switch Q3
For the controlled end of first push-pull circuit 20, the first conducting end of the second electronic switch Q2 is first push-pull circuit
20 first input end, the first conducting end of the second conducting end of the second electronic switch Q2 and the third electronic switch Q3
Common end be first push-pull circuit 20 output end；The second conducting end of the third electronic switch Q3 is described first
Second input terminal of push-pull circuit 20.
In the present embodiment, the second electronic switch Q2 and third electronic switch Q3 can be with triode, metal-oxide-semiconductor or IGBT etc.
Switching tube realizes, and both the second electronic switch Q2 and third electronic switch Q3 can using identical electronic switch or
Different electronic switch is realized.The second electronic switch of the present embodiment Q2 is optional to be managed using NPN type triode or N-MOS come real
Existing, third electronic switch Q3 is optional to be realized using PNP type triode or P-MOS pipe.Wherein, the base stage of NPN type triode is
The controlled end of second electronic switch Q2, the current collection of NPN type triode extremely the first conducting end of the second electronic switch Q2, NPN type
Transmitting extremely the second conducting end of the second electronic switch Q2 of triode.The base stage of PNP type triode is third electronic switch Q3
Controlled end, the current collection of PNP type triode extremely the second conducting end of third electronic switch Q3, the emitter of PNP type triode
For the first conducting end of third electronic switch Q3.
When isolated drive circuit 10 exports the driving signal of high level, NPN type triode conducting, PNP type triode is cut
Only, NPN type triode exports the first DC power supply VCC voltage VCC to output interface J1 at this time.It is exported in isolated drive circuit 10
When low level driving signal, PNP type triode conducting, NPN type triode cut-off, PNP type triode exports 0V voltage at this time
To output interface J1.
Referring to FIG. 1 and FIG. 2, in above-described embodiment, first push-pull circuit 20 further include the first clamp diode D1 and
The first conducting end of second clamp diode D2, the cathode of the first clamp diode D1 and the second electronic switch Q2 connect
Connect, the cathode of the anode of the first clamp diode D1 and the second clamp diode D2 respectively with second electronic cutting
The second conducting end for closing Q2 is connect with the common end of the first conducting end of the third electronic switch Q3, two pole of the second clamper
The anode of pipe D2 is connect with the second conducting end of the third electronic switch Q3.
In the present embodiment, the first clamp diode D1 is used in the second electronic switch Q2 conducting, by the second electronic switch
The first conducting end of Q2 and the voltage clamping of the second conducting end are in the first DC power supply VCC voltage, or in the second electronic switch
When Q2 ends, current loop is formed with the first conducting end of the second electronic switch Q2 and the second conducting end, to improve the second electronics
The turn-off speed of switch Q2.Second clamp diode D2 is used in the second electronic switch Q2 conducting, by third electronic switch Q3
The first conducting end and the second conducting end voltage clamping in 0V, or third electronic switch Q3 cut-off when, with third electronics
The first conducting end of switch Q3 and the second conducting end form current loop, to improve the turn-off speed of third electronic switch Q3.
Referring to FIG. 1 and FIG. 2, in an alternative embodiment, second push-pull circuit 30 include the 4th electronic switch Q4 and
The controlled end of 5th electronic switch Q5, the controlled end of the 4th electronic switch Q4 and the 5th electronic switch Q5 are described the
The controlled end of two push-pull circuits 30, the first conducting end of the 4th electronic switch Q4 are the first of first push-pull circuit 20
Input terminal, the common end of the first conducting end of the second conducting end and the 5th electronic switch Q5 of the 4th electronic switch Q4
For the output end of second push-pull circuit 30；The second conducting end of the 5th electronic switch Q5 of 5th electronic switch Q5 is institute
State the second input terminal of the second push-pull circuit 30.
In the present embodiment, the 4th electronic switch Q4 and the 5th electronic switch Q5 it is optional using switching tubes such as triodes come real
It is existing.Wherein, the 4th electronic switch Q4 is optional is realized using NPN type triode, and the 5th electronic switch Q5 is optional to use positive-negative-positive three
Pole pipe is realized.Specifically, the base stage of NPN type triode is the controlled end of the 4th electronic switch Q4, the current collection of NPN type triode
Extremely the first conducting end of the 4th electronic switch Q4, the second of transmitting extremely the 4th electronic switch Q4 of NPN type triode are conductive
End.The base stage of PNP type triode is the controlled end of the 5th electronic switch Q5, the current collection of PNP type triode extremely the 5th electronic cutting
Close the second conducting end of Q5, transmitting extremely the first conducting end of the 5th electronic switch Q5 of PNP type triode.
In the second control signal for receiving high level, NPN type triode conducting, PNP type triode cut-off, at this time
NPN type triode exports the second DC power supply vdd voltage to output interface J1.Receiving low level second control signal
When, PNP type triode conducting, NPN type triode cut-off, PNP type triode exports 0V voltage to output interface J1 at this time.
Referring to FIG. 1 and FIG. 2, in an alternative embodiment, first push-pull circuit 20 further includes third clamp diode
The cathode of D3 and the 4th clamp diode D4, the third clamp diode D3 and the first conduction of the 4th electronic switch Q4
End connection, the anode of the third clamp diode D3 and the cathode of the 4th clamp diode D4 are electric with the described 4th respectively
The second conducting end of sub switch Q4 is connect with the common end of the first conducting end of the 5th electronic switch Q5, the 4th clamper
The anode of diode D4 is connect with the second conducting end of the 5th electronic switch Q5.
In the present embodiment, third clamp diode D3 is used in the 4th electronic switch Q4 conducting, by the 4th electronic switch
The first conducting end of Q4 and the voltage clamping of the second conducting end are in the first DC power supply VCC voltage, or in the 4th electronic switch
When Q4 ends, current loop is formed with the first conducting end of the 4th electronic switch Q4 and the second conducting end, to improve the 4th electronics
The turn-off speed of switch Q4.4th clamp diode D4 is used in the 5th electronic switch Q5 conducting, by the 5th electronic switch Q5
The first conducting end and the second conducting end voltage clamping in 0V, or the 5th electronic switch Q5 cut-off when, with the 5th electronics
The first conducting end of switch Q5 and the second conducting end form current loop, to improve the turn-off speed of the 5th electronic switch Q5.
The utility model also proposes a kind of electrical equipment, including master controller, power load and as described above asymmetric
Double push-pull circuit.The detailed construction of the asymmetric double push-pull circuit can refer to above-described embodiment, and details are not described herein again；It is understood that
, due to having used above-mentioned asymmetric double push-pull circuit in the utility model electrical equipment, the utility model electric appliance
The embodiment of equipment includes whole technical solutions of above-mentioned asymmetric double push-pull circuit whole embodiments, and technology achieved is imitated
Fruit is also identical, and details are not described herein.
Wherein, the first input interface of the first control terminal of the master controller and the asymmetric double push-pull circuit connects
It connects；Second control terminal of the master controller is connect with the second input interface of the asymmetric double push-pull circuit；It is described non-right
The output interface of double push-pull circuit is claimed to connect with the power end of the power load.
In above-described embodiment, the electrical equipment is electromagnetic oven perhaps electric cooker or electric pressure cooking saucepan.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of asymmetric double push-pull circuit, which is characterized in that the asymmetric double push-pull circuit includes:
First input interface, the second input interface and output interface；
Isolated drive circuit, controlled end are connect with first input interface, and first input end is for accessing the first direct current
Power supply, the second input end grounding；The isolated drive circuit is configured as, when receiving first control signal, output phase
The driving signal answered；
First push-pull circuit, controlled end are connect with the output end of the isolated drive circuit, and first input end is for connecing
Enter first DC power supply, the second input end grounding, output end is connect with the output interface；Described first recommends electricity
Road is configured as, and when receiving the driving signal, exports first direct current power source voltage or no-voltage；
Second push-pull circuit, controlled end are connect with second input interface, and first input end is for accessing the second direct current
Power supply, the second input end grounding, output end are connect with the output interface；Second push-pull circuit is configured as,
When receiving second control signal, second direct current power source voltage or no-voltage are exported.
2. asymmetric double push-pull circuit as described in claim 1, which is characterized in that the isolated drive circuit includes the first electricity
Sub switch and first resistor, the controlled end of first electronic switch are the controlled end of the isolated drive circuit, described first
First conducting end of electronic switch and the common end of the first resistor are the output end of isolated drive circuit, first electronics
Second conducting end of switch is the second input terminal of the isolated drive circuit；The second end of the first resistor is the isolation
The first input end of driving circuit.
3. asymmetric double push-pull circuit as described in claim 1, which is characterized in that first push-pull circuit includes the second electricity
The controlled end of sub switch and third electronic switch, the controlled end of second electronic switch and the third electronic switch is described
The controlled end of first push-pull circuit, the first conducting end of second electronic switch are the first input of first push-pull circuit
End, the common end of the first conducting end of the second conducting end of second electronic switch and the third electronic switch are described the
The output end of one push-pull circuit；Second conducting end of the third electronic switch is the second input of first push-pull circuit
End.
4. asymmetric double push-pull circuit as claimed in claim 3, which is characterized in that second electronic switch is NPN type three
Pole pipe or N-MOS pipe；And/or
The third electronic switch is PNP type triode or P-MOS pipe.
5. asymmetric double push-pull circuit as claimed in claim 3, which is characterized in that first push-pull circuit further includes first
Clamp diode and the second clamp diode, the cathode of first clamp diode are led with the first of second electronic switch
The cathode of the connection of electric end, the anode of first clamp diode and second clamp diode respectively with second electronics
Second conducting end of switch is connect with the common end of the first conducting end of the third electronic switch, second clamp diode
Anode connect with the second conducting end of the third electronic switch.
6. asymmetric double push-pull circuit as described in claim 1, which is characterized in that second push-pull circuit includes the 4th electricity
Sub switch and the 5th electronic switch, the controlled end of the 4th electronic switch and the controlled end of the 5th electronic switch are described
The controlled end of second push-pull circuit, the first conducting end of the 4th electronic switch are the first input of second push-pull circuit
End, the common end of the first conducting end of the second conducting end of the 4th electronic switch and the 5th electronic switch are described the
The output end of two push-pull circuits；Second conducting end of the 5th electronic switch is the second input of second push-pull circuit
End.
7. asymmetric double push-pull circuit as claimed in claim 6, which is characterized in that the 4th electronic switch is NPN type three
Pole pipe；And/or the 5th electronic switch is PNP type triode.
8. asymmetric double push-pull circuit as claimed in claim 6, which is characterized in that first push-pull circuit further includes third
Clamp diode and the 4th clamp diode, the cathode of the third clamp diode are led with the first of the 4th electronic switch
The cathode of the connection of electric end, the anode of the third clamp diode and the 4th clamp diode respectively with the 4th electronics
Second conducting end of switch is connect with the common end of the first conducting end of the 5th electronic switch, the 4th clamp diode
Anode connect with the second conducting end of the 5th electronic switch.
9. a kind of electrical equipment, which is characterized in that including master controller, power load and such as claim 1 to 8 any one institute
First input of the asymmetric double push-pull circuit stated, the first control terminal of the master controller and the asymmetric double push-pull circuit
Interface (IO1) connection；Second input interface of the second control terminal of the master controller and the asymmetric double push-pull circuit
(IO2) it connects；The output interface of the asymmetric double push-pull circuit is connect with the power end of the power load.
10. electrical equipment as claimed in claim 9, which is characterized in that the electrical equipment be electromagnetic oven or electric cooker,
Or electric pressure cooking saucepan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967169.8U CN208241579U (en) | 2018-06-21 | 2018-06-21 | Asymmetric double push-pull circuit and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820967169.8U CN208241579U (en) | 2018-06-21 | 2018-06-21 | Asymmetric double push-pull circuit and electrical equipment |
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| Publication Number | Publication Date |
|---|---|
| CN208241579U true CN208241579U (en) | 2018-12-14 |
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| CN201820967169.8U Active CN208241579U (en) | 2018-06-21 | 2018-06-21 | Asymmetric double push-pull circuit and electrical equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120675546A (en) * | 2025-08-21 | 2025-09-19 | 广汽能源科技有限公司 | Drive circuits and electronic equipment |
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2018
- 2018-06-21 CN CN201820967169.8U patent/CN208241579U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120675546A (en) * | 2025-08-21 | 2025-09-19 | 广汽能源科技有限公司 | Drive circuits and electronic equipment |
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