CN108063435A - Intelligent power module, controller of air conditioner and air conditioner - Google Patents
Intelligent power module, controller of air conditioner and air conditioner Download PDFInfo
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- CN108063435A CN108063435A CN201810057592.9A CN201810057592A CN108063435A CN 108063435 A CN108063435 A CN 108063435A CN 201810057592 A CN201810057592 A CN 201810057592A CN 108063435 A CN108063435 A CN 108063435A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/045—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage adapted to a particular application and not provided for elsewhere
Abstract
The present invention provides a kind of intelligent power module, controller of air conditioner and air conditioner, by increasing detection circuit in inside, upper bridge over-current control circuit and lower bridge over-current control circuit, and sampling resistor is changed to built-in, so that when overcurrent occurs for intelligent power module driving load, voltage signal when can be to overcurrent on sampling resistor carries out Time-delayed Feedback, the filtering to voltage noise is played with this, improve the accuracy of over-current detection, and by upper bridge over-current control circuit and lower bridge over-current control circuit bridge arm IGBT pipes all cut-offs and the timesharing of three-phase lower bridge arm IGBT pipes on its three-phase is controlled to turn on respectively in overcurrent, the charge inducing that the load of IPM module drives generates when can be to due to overcurrent carries out releasing for effective and safe, it thus avoids residual charge and impact is generated to IGBT pipes, improve IPM Module Reliabilities.
Description
Technical field
The present invention relates to intelligent power module technical field more particularly to a kind of intelligent power module, controller of air conditioner
And air conditioner.
Background technology
Intelligent power module, i.e. IPM (Intelligent Power Module, intelligent power module) are a kind of by electricity
The power drive class product that power electronics and integrated circuit technique combine.Intelligent power module is device for power switching and high drive
Circuit integrates, and is internally provided with the fault detection circuits such as overvoltage, overcurrent and overheat.One side of intelligent power module
Face receives the control signal of MCU, on the other hand driving subsequent conditioning circuit work sends the state detection signal of system back to MCU.Intelligence
Power module is particularly suitable for the frequency converter of driving motor and various inverters, is frequency control, metallurgical machinery, and electric power is led
Draw, servo-drive, a kind of desired power level electronic device of frequency-conversion domestic electric appliances.
The circuit structure of existing IPM modules 100 including HVIC as shown in Figure 1, manage (High Voltage
Integrated Circuit, high voltage integrated circuit chip) 111, bridge arm IGBT pipes (Insulated Gate on three-phase
Bipolar Transistor, insulated gate bipolar transistor) 111,112,113 and three-phase lower bridge arm IGBT pipes 114,
115th, 116, UH driving circuits 101, the VH that wherein 111 inside of HVIC pipes includes connecting respectively at bridge arm IGBT pipes on three-phase drive
Circuit 102, WH driving circuits 103 and UL driving circuits 104, VL driving circuits respectively at the IGBT connections of three-phase lower bridge arm
105 and WL driving circuits 106 drive respectively under the control for the six tunnel control signals that this six driving circuits are inputted in IPM modules 100
Dynamic corresponding six IGBT pipes carry out on off state switching.Its IPM module 100 recommendation circuit in actual work as shown in Fig. 2,
Its IPM module 100 is connected by six tunnel control signals of input with MCU200, U, V, W three-phase output end of IPM modules 100
The three-phase windings of motor 139 are connected, capacitance 135,136,137 is respectively to connect three-phase output end and corresponding phase high voltage power supply just
The bootstrap capacitor at end controls the on off state of six IGBT pipes of IPM modules 100 by six tunnel control signals of MCU200 outputs
It switches over, corresponding three-phase driving signal is exported to motor 139, so as to the operation of driving motor 139.Further, UN,
VN, WN are connected and one end of connecting resistance 138, resistance 138 are used for detecting the output current value of 100 driving motor 139 of IPM modules simultaneously
The Pin7 feet of MCU are input to, in practical applications, particularly in convertible frequency air-conditioner application, according to environmental change, MCU detections institute
The voltage change of resistance 138 is stated, controls the working condition of the intelligent power module 100, when the voltage value of the resistance 138 is big
In a certain particular value, that is, when flowing through the electric current of the intelligent power module 100 and being more than a certain particular value, it was demonstrated that the intelligent power
There are the risk that overload operation irregularity generates heat, PIN1~PIN6 ends of the MCU pipes 200 to export low level simultaneously for module 100,
100 stopping of intelligent power module is controlled to act.By above-mentioned mechanism, if a certain particular voltage level set enough to
It is small, it is possible to which that the drawbacks of ensureing that the intelligent power module 100 is not destroyed, but bringing is also obvious：
First, the working environment of intelligent power module is severe, and voltage noise is very big, easily generates false triggering, causes reality
Border electric current not overcurrent and shut down；
Secondly, when real overcurrent occurs, because the load of the intelligent power module 100 is perceptual original paper, overcurrent
Necessarily lead to residual charge, being stopped suddenly of the intelligent power module 100 cause residual charge there is no discharge loop and
Generation is gathered, when the intelligent power module 100 again after the power is turned on, load end residual charge generates impact to IGBT pipes, and having can
Micro-damage can be caused to IGBT pipes, the intelligent power module 100 can be caused to burn when serious, make systemic breakdown or even is triggered
The security incidents such as fire.
The content of the invention
It is a primary object of the present invention to provide a kind of intelligent power module, controller of air conditioner and air conditioner, purpose exists
In the solution intelligent power module charge inducing that over-current detection is generated due to the easy false triggering of interference and load during the work time
Generating impact to intelligent power module influences its module reliable operation sex chromosome mosaicism.
To achieve the above object, a kind of intelligent power module provided by the invention, including bridge arm IGBT pipes and three on three-phase
Phase lower bridge arm IGBT manage and on the three-phase bridge arm IGBT pipe and three-phase lower bridge arm IGBT pipes in each IGBT pipe it is corresponding
Driving circuit and bridge arm control signal input, which is characterized in that the intelligent power module further include over-current detection circuit,
Upper bridge over-current control circuit and lower bridge over-current control circuit；
First output terminal of the over-current detection circuit connects the control terminal of the lower bridge over-current control circuit, the overcurrent
The control terminal of the second output terminal connection upper bridge over-current control circuit of detection circuit, the three of the upper bridge over-current control circuit
A output terminal connects on the three-phase bridge arm IGBT and manages corresponding driving circuit respectively, three of the lower bridge over-current control circuit
Output terminal connects the three-phase lower bridge arm IGBT and manages corresponding driving circuit respectively, the upper bridge over-current control circuit and it is described under
Three input terminals of bridge over-current control circuit connect corresponding bridge arm control signal input respectively；
The over-current detection circuit is used to detect the current value of the intelligent power module driving load, when the current value
During more than predetermined current threshold, the over-current detection circuit output protection signal to the upper bridge over-current control circuit and it is described under
Bridge over-current control circuit, to disconnect the connection of corresponding IGBT pipes corresponding bridge arm control signal input and driving circuit, and
It controls bridge arm IGBT pipes cut-off on the three-phase and three IGBT pipe timesharing in the three-phase lower bridge arm IGBT pipes is controlled to lead
It is logical, it is released with the charge inducing of the load driven to the intelligent power module.
In a kind of possible design, the over-current detection circuit includes comparison module, time delay module and output module；
The comparison module input terminal is over-current detection circuit input terminal, and the comparison module output terminal connects time delay module
Input terminal, the time delay module output terminal connect the output module, and two output terminals of the output module are the overcurrent
Detection circuit output terminal；
The voltage for the intelligent power module driving load current value that the comparison module input terminal inputs for detection
Signal, and compared with preset voltage value, when more than the preset voltage value output overcurrent signal to the time delay module,
And the output module is input to after time delay module delay, carrying out level conversion output two-way through the output module protects
Signal is protected to the upper bridge over-current control circuit and the lower bridge over-current control circuit.
In a kind of possible design, the comparison module includes comparator, voltage source；
One end ground connection of the voltage source, the other end connect the in-phase input end of the comparison module, the comparison module
Reverse input end be the comparison module input terminal.
In a kind of possible design, the time delay module includes delay circuit, the first NOT gate and the second NOT gate；
The first NOT gate input terminal is the time delay module input terminal, and the first non-gate output terminal connects the delay
Circuit input end；
The delay circuit output terminal connects the second NOT gate input terminal, and the second non-gate output terminal is the delay
Module output terminal.
In a kind of possible design, the output module includes the 5th NOT gate；
First output terminal of the output module is connected to the input of the 5th NOT gate with the output module input terminal altogether
End, the 5th non-gate output terminal are the second output terminal of the output module.
In a kind of possible design, the lower bridge over-current control circuit includes the 6th NOT gate, the 7th NOT gate, timesharing electricity
Road, the first analog switch, the second analog switch, the 3rd analog switch, the first OR gate, the second OR gate and the 3rd OR gate；
The input terminal of 6th NOT gate be the lower bridge over-current control circuit control terminal, the output terminal of the 6th NOT gate
Connect the input terminal of the 7th NOT gate, the output terminal of the 6th NOT gate simultaneously respectively with first analog switch, second
Analog switch and the connection of the 3rd analog switch control terminal；
One end of first analog switch, the second analog switch and the 3rd analog switch forms the lower bridge and crosses flow control
Three input terminals of circuit, an input terminal of other end connection first OR gate of first analog switch, described second
The other end of analog switch connects an input terminal of second OR gate, the other end connection of the 3rd analog switch described the
One input terminal of three OR gates；
The output terminal of 7th NOT gate connects the control terminal of the time-sharing circuit, three output terminals of the time-sharing circuit
Another input terminal of first OR gate, the second OR gate and the 3rd OR gate is connected respectively；
The output terminal of first OR gate, the second OR gate and the 3rd OR gate forms three of the lower bridge over-current control circuit
Output terminal.
In a kind of possible design, the time-sharing circuit includes signal generating circuit, the 4th analog switch, the first D and touches
Send out device, the second d type flip flop and 3d flip-flop；
The signal generating circuit output terminal connects one end of the 4th analog switch, the 4th analog switch it is another
One end connects the input end of clock of first d type flip flop, the second d type flip flop and 3d flip-flop, the 4th analog switch
Control terminal be the time-sharing circuit control terminal；
The output terminal of first d type flip flop, the second d type flip flop and 3d flip-flop forms the three of the time-sharing circuit
A output terminal, the first d type flip flop output terminal connect the data terminal of second d type flip flop, the second d type flip flop output
End connects the data terminal of the 3d flip-flop, and the 3d flip-flop output terminal connects the data of first d type flip flop
End.
In a kind of possible design, the upper bridge over-current control circuit includes the 8th NOT gate, first and door, second and door
With the 3rd and door；
The input terminal of 8th NOT gate is the upper bridge over-current control circuit control terminal, the output terminal of NOT gate on described the
Connect altogether with an input terminal of door with door and the 3rd with described first and door, second respectively, described first with door, second with door and the
Three form three input terminals of the upper bridge over-current control circuit with another input terminal of door, described first with door, second and door
Three output terminals of the upper bridge over-current control circuit are formed with the output terminal of the 3rd and door.
To achieve the above object, the present invention also provides a kind of controller of air conditioner, the air conditioner includes the intelligence
Power module.
To achieve the above object, the present invention also provides a kind of air conditioner, the air conditioner includes the air conditioner and controls
Device.
Intelligent power module provided by the invention, by inside increase detection circuit, on bridge over-current control circuit and under
Bridge over-current control circuit, and sampling resistor is changed to built-in so that it, can be right when overcurrent occurs for intelligent power module driving load
Voltage signal on sampling resistor carries out Time-delayed Feedback during overcurrent, plays filtering to voltage noise with this, improves overcurrent inspection
The accuracy of survey, and bridge on its three-phase is controlled by upper bridge over-current control circuit and lower bridge over-current control circuit respectively in overcurrent
The all cut-offs of arm IGBT pipes and three-phase lower bridge arm IGBT pipes timesharing conducting, when can be to due to overcurrent the load of IPM module drives generate
Charge inducing carry out effective and safe and release, thus avoid residual charge and impact generated to IGBT pipes, improve IPM modules
Reliability.
Description of the drawings
Fig. 1 is the circuit structure diagram of intelligent power module in the prior art；
Fig. 2 is the circuit diagram of intelligent power module real work in the prior art；
Fig. 3 is the circuit structure diagram of intelligent power module of the present invention；
Fig. 4 is the particular circuit configurations figure of output regulation circuit in Fig. 3；
Fig. 5 is the specific enlarged drawing of Tu4Zhong A areas circuit；
Fig. 6 is the particular circuit configurations figure of delay circuit in Fig. 4；
Fig. 7 is the particular circuit configurations figure of time-sharing circuit in Fig. 4.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
With reference to Fig. 3, Fig. 3 is 4100 structure diagram of IPM modules that first embodiment of the invention provides, for the ease of saying
It is bright, it illustrates only and the relevant part of the embodiment of the present invention.
In the present embodiment, the IPM modules 4100 include three-phase on bridge arm IGBT pipe and three-phase lower bridge arm IGBT pipe and
Believe with each IGBT corresponding driving circuits of pipe and bridge arm control in bridge arm IGBT pipes on three-phase and three-phase lower bridge arm IGBT pipes
Number input terminal, the IPM modules 4100 further include over-current detection circuit 4302, upper bridge over-current control circuit 4304 and lower bridge and cross flow control
Circuit 4303 processed；
The control terminal of the lower bridge over-current control circuit 4303 of the first output terminal connection of over-current detection circuit 4302, over-current detection
The control terminal of the upper bridge over-current control circuit 4304 of second output terminal connection of circuit 4302, the three of upper bridge over-current control circuit 4304
A output terminal connects bridge arm IGBT on three-phase and manages corresponding driving circuit, three outputs of lower bridge over-current control circuit 4303 respectively
End connects three-phase lower bridge arm IGBT and manages corresponding driving circuit respectively, and upper bridge over-current control circuit 4304 and lower bridge cross flow control electricity
Three input terminals on road 4303 connect corresponding bridge arm control signal input respectively；
Over-current detection circuit 4302 is used to detect the current value of 4100 driving load of intelligent power module, when current value is more than
During predetermined current threshold, 4302 output protection signal of over-current detection circuit crosses flow control to upper bridge over-current control circuit 4304 and lower bridge
Circuit 4303 processed, to disconnect the connection of bridge arm control signal input and driving circuit corresponding to the signal of corresponding IGBT pipes,
And control bridge arm IGBT pipes cut-off on three-phase and each IGBT pipes timesharing in three-phase lower bridge arm IGBT pipes is controlled to turn on,
It is released with the charge inducing of the load driven to intelligent power module 4100.
As described in Figure 2, intelligent power module 4100 includes power driving circuit 4400 and for detecting intelligent power
The sampling resistor 4301 of the current value size of 4100 driving load of module, here sampling resistor 4301 be integrated in intelligent power mould
In block 4100, this certain sampling resistor 4301 can also be connected in intelligent power module 4100, wherein power driving circuit 4400
Power positive end VCC ends be generally 15V as low-pressure area power supply the anode VDD, VDD of intelligent power module 4100；
The first input end HIN1 of power driving circuit 4400 is as bridge arm input terminal in the U phases of intelligent power module 4100
UHIN, the second input terminal HIN2 of power driving circuit 4400 is as bridge arm input terminal in the V phases of intelligent power module 4100
VHIN, the 3rd input terminal HIN3 of power driving circuit 4400 is as bridge arm input terminal in the W phases of intelligent power module 4100
The U phase lower bridge arm input terminals of WHIN, the 4th input terminal LIN1 of power driving circuit 4400 as intelligent power module 4100
The V phase lower bridge arm input terminals of ULIN, the 5th input terminal LIN2 of power driving circuit 4400 as intelligent power module 4100
The W phase lower bridge arm input terminals of VLIN, the 6th input terminal LIN3 of power driving circuit 4400 as intelligent power module 4100
WLIN。
The U phase low reference voltages end of 7th output terminal ITRIP of power driving circuit 4400 and power driving circuit 4400
UN, the V phase low reference voltages end VN of power driving circuit 4400, power driving circuit 4400 W phase low reference voltages end WN, adopt
One end of sample resistance 4301 is connected, and as the abnormal feedback end ISO of intelligent power module 4100.
The power supply negative terminal GND of power driving circuit 4400 is connected with the other end of sampling resistor 4301, and as intelligent work(
The minimum voltage reference point N of rate module 4100, the U phases higher-pressure region power supply anode VB1 and capacitance of power driving circuit 4400
4133 one end is connected, and as the U phases higher-pressure region power supply anode UVB of intelligent power module 4100, power driving circuit
4400 U phases higher-pressure region power supply negative terminal VS1 is connected with the other end of capacitance 4133, and as intelligent power module 4100
U phases higher-pressure region power supply negative terminal UVS；The V phases higher-pressure region power supply anode VB2 of power driving circuit 4400 and capacitance 4132
One end be connected, and as the V phases higher-pressure region power supply anode VVB of intelligent power module 4100, power driving circuit 4400
V phases higher-pressure region power supply negative terminal VS2 be connected with the other end of capacitance 4132, and as the V phases of intelligent power module 4100
Higher-pressure region power supply negative terminal VVS；The W phases higher-pressure region power supply anode VB3 of power driving circuit 4400 and capacitance 4131
One end is connected, and as the W phases higher-pressure region power supply anode WVB of intelligent power module 4100, the W of power driving circuit 4400
Phase higher-pressure region power supply negative terminal VS3 is connected with the other end of capacitance 4131, and as the W phase high pressures of intelligent power module 4100
The highest of area power supply negative terminal WVS, the maximum voltage reference end P of power driving circuit 4400 as intelligent power module 4100
Voltage reference points P.
Inside power driving circuit 4400, voltage signal ITRIP takes over the input terminal of current detection circuit 4302；Overcurrent is examined
The control terminal of the lower bridge over-current control circuit 4303 of the first output termination of slowdown monitoring circuit 4302, the second of over-current detection circuit 4302 are defeated
Outlet connects the control terminal of bridge over-current control circuit 4304.
The first input end of the lower bridge over-current control circuit 4303 of LIN1 terminations of power driving circuit 4400,
Second input terminal of the lower bridge over-current control circuit 4303 of LIN2 terminations, the lower bridge over-current control circuit 4303 of LIN3 terminations
The 3rd input terminal, the first input end of bridge over-current control circuit 4304 in HIN1 terminations, bridge crosses flow control electricity in HIN2 terminations
Second input terminal on road 4304, the 3rd input terminal of bridge over-current control circuit 43034 in HIN3 terminations.
Specifically, over-current detection circuit 4302, upper bridge over-current control circuit 4304 and lower bridge over-current control circuit 4303
A kind of physical circuit based on said program as shown in figure 4, the amplification circuit diagram of further above-mentioned part can be found in Fig. 5,
Physical circuit is as follows：
Over-current detection circuit 4302 includes comparison module 10, time delay module 20 and output module 30；
10 input terminal of comparison module is 4302 input terminal of over-current detection circuit, and 10 output terminal of comparison module connects time delay module
20 input terminals, 20 output terminal of time delay module connection output module 30, two output terminals of output module 30 are over-current detection circuit
4302 output terminals；
The voltage signal for the intelligent power module driving load current value that 10 input terminal of comparison module inputs for detection
ITRIP, and compared with preset voltage value, output overcurrent signal is to time delay module 20 when more than preset voltage value, and passes through
Time delay module 20 is input to output module 30 after being delayed, and it is supreme to carry out level conversion output two-way protection signal through output module 30
Bridge over-current control circuit 4304 and lower bridge over-current control circuit 4303.
Further, a concrete application circuit as comparison module 10, comparison module 10 include comparator 4312, electricity
Potential source 4322；One end ground connection of voltage source 4322, the other end connect the in-phase input end of comparison module 10, the side of comparison module 10
It is 10 input terminal of comparison module to input terminal.
Time delay module 20 includes delay circuit 4342, the first NOT gate 4332 and the second NOT gate 4352；
First NOT gate, 4332 input terminal is 20 input terminal of time delay module, and 4332 output terminal of the first NOT gate connects delay circuit
4342 input terminals；
4342 output terminal of delay circuit connects 4352 input terminal of the second NOT gate, and 4352 output terminal of the second NOT gate is time delay module
20 output terminals.
Further, a concrete application circuit as delay circuit 4342, as shown in figure 5, delay circuit 4342 wraps
The 3rd NOT gate 43421, the 4th NOT gate 43422 and the first capacitance 43423 are included, delay circuit mainly passes through the first capacitance 4345 here
It charges and realizes delay function；
The input terminal of 3rd NOT gate 43421 be delay circuit 4342 input terminal, 43421 output terminal of the 3rd NOT gate and first
43422 one end of capacitance is connected to 43422 input terminal of the 4th NOT gate altogether, and 43422 output terminal of the 4th NOT gate exports for delay circuit 4342
End.
Output module 30 includes the 5th NOT gate 4362；
First output terminal OUT1 of output module 30 is connected to the input of the 5th NOT gate 4362 with 30 input terminal of output module altogether
End, 4362 output terminal of the 5th NOT gate are the second output terminal OUT2 of output module 30.
Further, a concrete application circuit as lower bridge over-current control circuit 4303, lower bridge over-current control circuit
4303 include the 6th NOT gate 4313, the 7th NOT gate 4353, time-sharing circuit 4363, the first analog switch 4373, the second analog switch
4383rd, the 3rd analog switch 4393, the first OR gate 4343, the second OR gate 4333 and the 3rd OR gate 4323；
The input terminal of 6th NOT gate 4313 be lower 4303 control terminal of bridge over-current control circuit, the output terminal of the 6th NOT gate 4313
Connect the input terminal of the 7th NOT gate 4353, the output terminal of the 6th NOT gate 4313 simultaneously respectively with the first analog switch 4373, second
Analog switch 4383 is connected with 4393 control terminal of the 3rd analog switch；
The lower bridge overcurrent of one end composition of first analog switch 4373, the second analog switch 4383 and the 3rd analog switch 4393
Three input terminals of control circuit 4303, the other end of the first analog switch 4373 connect an input terminal of the first OR gate 4343,
The other end of second analog switch 4383 connects an input terminal of the second OR gate 4333, and the other end of the 3rd analog switch 4393 connects
Connect an input terminal of the 3rd OR gate 4323；
The control terminal of the output terminal connection time-sharing circuit 4363 of 7th NOT gate 4353, three output terminals of time-sharing circuit 4363
Another input terminal of the first OR gate 4343, the second OR gate 4333 and the 3rd OR gate 4323 is connected respectively；
The lower bridge over-current control circuit of output terminal composition of first OR gate 4343, the second OR gate 4333 and the 3rd OR gate 4323
4303 three output terminals.
Optionally, as shown in fig. 7, time-sharing circuit 4363 includes signal electricity occurs for a kind of physical circuit of time-sharing circuit 4363
Road 43634, the 4th analog switch 43635, the first d type flip flop 43631, the second d type flip flop 43632 and 3d flip-flop
43633；
43634 output terminal of signal generating circuit connects one end of the 4th analog switch 43635, the 4th analog switch 43635
The other end connect the input end of clock of the first d type flip flop 43631, the second d type flip flop 43632 and 3d flip-flop 43633,
The control terminal of 4th analog switch 43635 is 4363 control terminal of time-sharing circuit；
The output terminal composition timesharing electricity of first d type flip flop 43631, the second d type flip flop 43632 and 3d flip-flop 43633
Three output terminals on road 4363,43631 output terminal of the first d type flip flop connect the data terminal of the second d type flip flop 43632, and the 2nd D is touched
The data terminal of 43632 output terminal of device connection 3d flip-flop 43633 is sent out, 43633 output terminal of 3d flip-flop connects the first D and touches
Send out the data terminal of device 43631.
Further, a concrete application circuit as upper bridge over-current control circuit 4304, upper bridge over-current control circuit
4304 include the 7th NOT gate 4314, first and door 4344, second and door 4334 and the 3rd and door 4324；
The input terminal of 7th NOT gate 4314 is upper 4304 control terminal of bridge over-current control circuit, the output terminal difference of NOT gate on the
Connect altogether with first and door 4344, second and door 4334 and the 3rd and an input terminal of door 4324, first with door 4344, second and door
4334 and the 3rd with three input terminals of the upper bridge over-current control circuit 4304 of another input terminal of door 4324 composition, first and door
4344th, second three output terminals for going up bridge over-current control circuit 4304 are formed with the output terminal of door 4334 and the 3rd and door 4324.
It, can be with what deserves to be explained is the circuit structure of above-mentioned delay circuit 4342 is only a kind of specific application circuit
It is that other application circuits are such as realized by counter delay circuit.
In physical circuit shown in Fig. 4, power driving circuit 4400 further include bridge arm IGBT pipes 4111 on three three-phases,
4112nd, 4113 and with bridge arm IGBT pipes are connected respectively on these three three-phases UH driving circuits 4101, VH driving circuits 4102
With WH driving circuits 4103, and power driving circuit 4400 further include three three-phase lower bridge arm IGBT pipes 4114,4115,4116 with
And UL driving circuits 4104, VL driving circuits 4105 and the WL driving circuits being connected respectively with these three three-phase lower bridge arm IGBT pipes
4106。
Specifically, the first output terminal of upper bridge over-current control circuit 4304 is connected with the input terminal of UH driving circuits 4101,
The second output terminal of upper bridge over-current control circuit 4304 is connected with the input terminal of VH driving circuits 4102, upper bridge over-current control circuit
4304 the 3rd output terminal is connected with the input terminal of WH driving circuits 4103, the first output terminal of lower bridge over-current control circuit 4303
It is connected with the input terminal of UL driving circuits 4104, second output terminal and the VL driving circuits 4105 of lower bridge over-current control circuit 4303
Input terminal be connected, the 3rd output terminal of lower bridge over-current control circuit 4303 is connected with the input terminal of WL driving circuits 4106.
Here, the six tunnels input of U, V, W three-phase of intelligent power module 4100 receives the input signal of 0V or 5V.
Low-pressure area power supply negative terminal COM of the GND ends of power driving circuit 4400 as intelligent power module 4100, and
With UH driving circuits 4101, VH driving circuits 4102, WH driving circuits 4103, UL driving circuits 4104, VL driving circuits 4105,
The low-pressure area power supply negative terminal of WL driving circuits 4106 is connected.
The VB1 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of UH driving circuits 4101
Power supply anode is connected, in one end of 4400 external connection capacitance 4131 of power driving circuit, and as intelligent power module
4100 U phases higher-pressure region power supply anode UVB.
The HO1 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the output terminal of UH driving circuits 4101
It is connected, is connected in 4400 outside of power driving circuit with the grid of bridge arm IGBT pipes 4121 in U phases.
The VS1 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of UH driving circuits 4101
Power supply negative terminal is connected, in 4400 outside of power driving circuit and the emitter-base bandgap grading of IGBT pipes 4121, the anode of FRD pipes 4111, U phases
The collector of lower bridge arm IGBT pipes 4124, the cathode of FRD pipes 4114, the other end of capacitance 4131 are connected, and as intelligent power
The U phases higher-pressure region power supply negative terminal UVS of module 4100.
The VB2 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of VH driving circuits 4102
Power supply anode is connected, in one end of 4400 external connection capacitance 4132 of power driving circuit, as intelligent power module
4100 U phases higher-pressure region power supply anode VVB.
The HO2 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the output terminal of VH driving circuits 4102
It is connected, is connected in 4400 outside of power driving circuit with the grid of bridge arm IGBT pipes 4122 in V phases.
The VS2 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of VH driving circuits 4102
Power supply negative terminal is connected, in 4400 outside of power driving circuit and the emitter-base bandgap grading of IGBT pipes 4122, the anode of FRD pipes 4112, V phases
The collector of lower bridge arm IGBT pipes 4125, the cathode of FRD pipes 4115, the other end of capacitance 4132 are connected, and as intelligent power
The V phases higher-pressure region power supply negative terminal VVS of module 4100.
The VB3 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of WH driving circuits 4103
Power supply anode is connected, in one end of 4400 external connection capacitance 4133 of power driving circuit, as intelligent power module
4100 W phases higher-pressure region power supply anode WVB.
The HO3 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the output terminal of WH driving circuits 4103
It is connected, is connected in 4400 outside of power driving circuit with the grid of bridge arm IGBT pipes 4123 in W phases.
The VS3 ends of power driving circuit 4400 are in 4400 inside of power driving circuit and the higher-pressure region of WH driving circuits 4103
Power supply negative terminal is connected, in 4400 outside of power driving circuit and the emitter-base bandgap grading of IGBT pipes 4123, the anode of FRD pipes 4113, W phases
The collector of lower bridge arm IGBT pipes 4126, the cathode of FRD pipes 4116, the other end of capacitance 4133 are connected, and as intelligent power
The W phases higher-pressure region power supply negative terminal WVS of module 4100.
The LO1 ends of power driving circuit 4400 are connected with the grid of IGBT pipes 4124, the LO2 ends of power driving circuit 4400
It is connected with the grid of IGBT pipes 4125, the LO3 ends of power driving circuit 4400 are connected with the grid of IGBT pipes 4126.
The emitter-base bandgap grading of IGBT pipes 4124 is connected with the anode of FRD pipes 4114, and as the low electricity of U phases of intelligent power module 4100
The emitter-base bandgap grading of pressure reference edge UN, IGBT pipe 4125 is connected with the anode of FRD pipes 4115, and as the V phases of intelligent power module 4100
The emitter-base bandgap grading of low reference voltage end VN, IGBT pipe 4126 is connected with the anode of FRD pipes 4116, and as intelligent power module 4100
W phase low reference voltages end WN.
The collector of IGBT pipes 4121, the cathode of FRD pipes 4111, the collector of IGBT pipes 4122, the moon of FRD pipes 4112
Pole, the collector of IGBT pipes 4123, the cathode of FRD pipes 4113 are connected, and the high voltage as intelligent power module 4100 inputs
P, P is held generally to meet 300V, UN, VN, WN are connected, and connect the ISO ends of intelligent power module 4100 altogether simultaneously, and supply terminals is as work(
The voltage signal ITRIP ends of rate driving circuit 4400, inside power driving circuit 4400, voltage signal ITRIP termination electric currents
The input terminal of detection circuit 4302.
The effect of above-mentioned power driving circuit 4400 is：
VDD is the power supply anode of power driving circuit 4400, and GND is that the power supply of power driving circuit 4400 is born
End；VDD-GND voltages are generally 15V；
VB1 and VS1 is respectively the anode and cathode of the power supply of U phases higher-pressure region, and HO1 is the output terminal of U phases higher-pressure region, VB2
It is respectively the anode and cathode of the power supply of V phases higher-pressure region with VS2, HO2 is the output terminal of V phases higher-pressure region, and VB3 and VS3 are respectively U
The anode and cathode of the power supply of phase higher-pressure region, HO3 are the output terminal of W phases higher-pressure region, and LO1, LO2, LO3 are respectively U phases, V phases, W
The output terminal of phase low-pressure area.
Operation principle based on above-mentioned Fig. 4 and Fig. 5 circuits is as follows：
When 4100 driving load of intelligent power module works normally, U phase low reference voltages end UN, V phase low-voltage ginseng
It is normal to examine end VN and W phase low reference voltages end WN output currents, at this time so that voltage of the output current on sampling resistor 4301
Normally, i.e. the voltage of voltage signal ITRIP is normal, therefore the voltage of ITRIP is less than the voltage of voltage source 4322, voltage comparator
4312 output terminal is high level, this high level passes through after the first NOT gate 4332,4342 and second NOT gate 4352 of delay circuit
First the first output terminal OUT1 output first via output high level signal, and through the second output terminal OUT2 of the 5th NOT gate 4362
The second road low level signal is exported, at this moment：
First output terminal of current detection circuit 4302 is high level, the second output terminal of current detection circuit 4302 is low
Level；Then the 6th NOT gate 4313 exports low level to the control terminal of time-sharing circuit 4363, puts the Enable Pin of time-sharing circuit 4363
It is low not work, meanwhile, the 6th NOT gate 4313 output low level becomes high level output to the first simulation through the 7th NOT gate 4353 again
Switching the 4373, second analog switch 4383, the control terminal of the 3rd analog switch 4393 so that these three analog switches are connected, under
Three input end signals of bridge over-current control circuit 4303 cross flow control through being input to lower bridge through above three analog switch respectively
One input terminal of three OR gates 4343,4333 and 4323 of circuit 4303, and since time-sharing circuit 4363 does not work, three of them is defeated
Outlet exports low level to another input terminal in above three OR gate 4343,4333 and 4323, the 8th NOT gate 4314 output high level
To three and door of upper bridge over-current control circuit 4304, it is apparent from by OR gate and with the logical relation of door：
At this point, make the level of the first output terminal of lower bridge over-current control circuit 4303 and lower bridge over-current control circuit 4303
The level of first input end is consistent, and the level of the second output terminal of lower bridge over-current control circuit 4303 is made to cross flow control electricity with lower bridge
The level of second input terminal on road 4303 is consistent, makes the level of the 3rd output terminal of lower bridge over-current control circuit 4303 and lower bridge mistake
The level of 3rd input terminal of flow control circuit 4303 is consistent；Make the level of the first output terminal of bridge over-current control circuit 4304
It is consistent with the level of the first input end of upper bridge over-current control circuit 4304, the second output terminal of upper bridge over-current control circuit 4304
Level it is consistent with the level of the second input terminal of upper bridge over-current control circuit 4304, the 3rd of upper bridge over-current control circuit 4304 the
The level of output terminal is consistent with the level of the 3rd input terminal of upper bridge over-current control circuit 4304.
By input terminal HIN1, HIN2, HIN3 and LIN1, the 0 of LIN2, LIN3 or 5V logic input signal pass to respectively it is defeated
Outlet HO1, HO2, HO3 and LO1, LO2, LO3, wherein HO1 be the logic output signal of VS1 or VS1+15V, HO2 be VS2 or
Logic output signal, the HO3 of VS2+15V are the logic output signal of VS3 or VS3+15V, and LO1, LO2, LO3 are patrolling for 0 or 15V
Collect output signal；
It should be noted that the input signal of same phase cannot be high level simultaneously, i.e., HIN1 and LIN1, HIN2 and
LIN2, HIN3 and LIN3 cannot be high level simultaneously.
When the current value of 4100 driving load of intelligent power module is excessive, then its U phase low reference voltages end UN, V phase is low
Voltage Reference end VN and W phase low reference voltages end WN output currents correspond to increase, at this time so that output current is in sampling resistor
Voltage rise on 4301, i.e. the voltage rise of voltage signal ITRIP so that
The voltage of ITRIP is more than the voltage of voltage source 4322, and the output terminal of voltage comparator 4312 is low level, at this moment：
It starts to work by delay circuit 4342, the low level signal of the output of voltage comparator 4312 is through the first NOT gate
4332nd, start to discharge to the first capacitance 43423 after the 3rd NOT gate 43421 so that under voltage on the first capacitance 43423 is gradual
Drop, when its voltage drops to the trigger voltage of 43422 input terminal of the 4th NOT gate, the high electricity of 43422 output terminal of the 4th NOT gate output
Ordinary mail number, and first via output low level signal is exported through first the first output terminal OUT1 after the second NOT gate 4352, and pass through
The second output terminal OUT2 of 5th NOT gate 4362 exports the second road high level signal, at this moment：
The first output terminal of current detection circuit 4302 be low level, the second output terminal of current detection circuit 4302 is
High level；Then the 6th NOT gate 4313 exports high level to the control terminal of time-sharing circuit 4363, makes the Enable Pin of time-sharing circuit 4363
Effectively start to work, meanwhile, the 6th NOT gate 4313 output high level becomes low level output to first through the 7th NOT gate 4353 again
Analog switch 4373, the second analog switch 4383, the control terminal of the 3rd analog switch 4393 so that these three analog switches break
It opens, three OR gates 4343 of three input end signals of lower bridge over-current control circuit 4303 and lower bridge over-current control circuit 4303,
4333 and 4323 input terminal all disconnects, and 4363 concrete operating principle of time-sharing circuit is as follows at this time：
Since the control terminal of time-sharing circuit 4363 causes its 4th analog switch 43635 to connect for high level, signal occurs
The pulse signal that circuit 43634 exports is input to the first d type flip flop 43631, the second d type flip flop 43632 and 3d flip-flop
43633 input end of clock, from the operation principle of d type flip flop, in the rising edge of first pulse, 3d flip-flop
43633 export high level first, this high level maintains realization identical with the high level of pulse signal, if the height such as pulse signal
Level time is 500ns, then it is also 500ns that 3d flip-flop 43633, which exports high level time, and in first pulse signal
For low level when, the output of 3d flip-flop 43633 is low level；And in second pulse signal rising edge to during high level,
First d type flip flop 43631 exports the output high level of same time, then in the 3rd pulse signal rising edge to high period
Between, the second d type flip flop 43632 exports the output high level of same time, above-mentioned every so with the continuous loading of pulse signal
A d type flip flop is sequentially output high level.
And due to the work of time-sharing circuit 4363, the first output terminal exports the height of a lasting preset time such as 500ns
Level；In the meantime, other two output terminal is low level；Then a lasting preset time is exported such as in second output terminal
The high level of 500ns；In the meantime, other two output terminal is low level；Then the 3rd output terminal export one continue it is pre-
If time such as the high level of 500ns；In the meantime, other two output terminal is low level；And so on, until time-sharing circuit
4363 Enable Pin is invalid.
7th NOT gate 4314 exports low level；Then NOT gate 4313 exports high level to the three of lower bridge over-current control circuit 4303
A OR gate, NOT gate 4314 export low level to three and door of upper bridge over-current control circuit 4304, the logic by OR gate and with door
Relation is apparent from,
So as to it make the first input end of lower bridge over-current control circuit 4303, second output terminal, the 3rd input terminal every upper
It states twice of preset time such as 1000ns and exports the high level that a duration is above-mentioned preset time such as 500ns；Manage IGBT
4124th, IGBT pipes 4125,4126 alternate conduction of IGBT pipes above-mentioned preset time such as 500ns, therefore lower bridge over-current control circuit
4303 the first output terminal, second output terminal, the 3rd output terminal form discharge loop to N respectively, at this time to intelligent power module
The charge inducing of the load of 4100 drivings carries out timesharing and releases.
Regardless of which kind of electricity the first input end of upper bridge over-current control circuit 4304, the second input terminal, the 3rd input terminal are
Flat, the first output terminal, second output terminal, the 3rd output terminal of upper bridge over-current control circuit 4304 are all low level；Therefore upper bridge
First output terminal of over-current control circuit 4304, second output terminal, the low level of the 3rd output terminal make HO1, HO2, HO3 output low
Level, so that IGBT pipes 4121, IGBT pipes 4122, IGBT pipes 4123 end.
Specifically, by taking a kind of intelligent power module of 15A as an example, sampling resistor 4301 can be designed as 33m Ω, voltage source
4322 voltage can be designed as 0.5V, then：
When the electric current that sampling resistor 4301 flows through is less than 15A, the voltage of ITRIP is less than the voltage of voltage source 4322；
When the electric current that sampling resistor 4301 flows through is more than 15A, the voltage of ITRIP is more than the voltage of voltage source 4322.
Pass through above-mentioned analysis, when overcurrent occurs for 4100 driving load of intelligent power module, over-current detection circuit
4302 can through internal delay time circuit 4342 into the control signal of line delay ability output protection, and when protecting control thirdly phase
The all cut-offs and three-phase lower bridge arm IGBT pipes of upper bridge arm IGBT pipes all turn on, therefore by above-mentioned built-in and right to sampling resistor 4301
The hysteresis that voltage signal ITRIP reacts during overcurrent, is conducive to the filtering of noise, reduces the generation of unnecessary shutdown, and work as overcurrent
During generation, current detection circuit 4302 makes the output for the power driving circuit 4400 that the input signal of upper and lower bridge cannot all transmit
End, and make three output terminals of lower bridge of power driving circuit 4400 for intermittent high level so that three IGBT pipes intervals of lower bridge
Property conducting, make three output terminals of upper bridge of power driving circuit 4400 for low level so that the three IGBT pipes cut-offs of lower bridge, under
Three IGBT pipes of bridge, which are respectively turned on, forms discharge loop, and the residual charge of inductive load is made to be released, is avoided on again
Residual charge is to impact caused by intelligent power module 4100 when electric, and significantly reduce that intelligent power module is subject to micro-damage can
Energy property, also, three IGBT pipes are to be respectively turned on, and the charge of load end is made slowly to release from three IGBT pipes respectively, is made each
The IGBT pipes of electric discharge have the sufficient time to radiate, and improve the long-term reliability of intelligent power module, reduce intelligence
The risk that power module is burnt in long-term work for improving the security and robustness of frequency conversion system, promotes frequency-conversion domestic electric appliances
Popularization and application play an important role.
The IPM modules 4100 of the embodiment of the present invention by inside increase detection circuit 4302, on bridge over-current control circuit
4304 and lower bridge over-current control circuit 4303, and sampling resistor 4301 is changed to built-in so that when intelligent power module 4100 is driven
When overcurrent occurs for dynamic load, voltage signal when can be to overcurrent on sampling resistor 4301 carries out Time-delayed Feedback, is played with this to electricity
The filtering of noise is pressed, the accuracy of over-current detection is improved, and passes through upper bridge over-current control circuit 4304 and lower bridge in overcurrent
Over-current control circuit 4303 controls all cut-offs of bridge arm IGBT pipes and three-phase lower bridge arm IGBT pipes timesharing conducting, energy on its three-phase respectively
The charge inducing that the load that IPM modules 4100 drive during to due to overcurrent generates carries out releasing for effective and safe, thus avoids
Residual charge generates impact to IGBT pipes, improves 4100 reliability of IPM modules.
The present invention also provides a kind of controller of air conditioner, controller of air conditioner is used to implement what air conditioner correlation was responsible for
Control, specifically, for transducer air conditioning, controller of air conditioner can be divided into the control of indoor unit part and outdoor machine part
Device, indoor machine controller realize the driving to indoor unit blower motor, the operation of wind guide strip even load, outdoor unit control realization pair
Compressor, outdoor fan motor, the driving of four-way valve even load operation, wherein outdoor controller include above-mentioned IPM modules,
For the driving to compressor operating, if outdoor fan motor is DC fan, further includes and be used for inside outdoor controller
The above-mentioned IPM modules of DC fan are driven, if agreeing to that indoor fan motor is DC fan, are also wrapped inside indoor controller
Include to drive the above-mentioned IPM modules of DC fan.Its IPM modules specific embodiment and effect can refer to above-mentioned implementation
Example, details are not described herein.
The present invention also provides a kind of air conditioner, air conditioner includes above-mentioned controller of air conditioner.
In the description of this specification, the description meaning of reference term " first embodiment ", " second embodiment ", " example " etc.
Refer to reference to specific method, device or the feature that the embodiment or example describe be contained at least one embodiment of the present invention or
In example.In the present specification, a schematic expression of the above terms does not necessarily refer to the same embodiment or example.And
And specific features, method, apparatus or the feature of description can be in any one or more of the embodiments or examples with suitable sides
Formula combines.In addition, without conflicting with each other, those skilled in the art can be real by the difference described in this specification
It applies example or example and different embodiments or exemplary feature is combined and combines.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of intelligent power module, including bridge arm IGBT pipes on three-phase and three-phase lower bridge arm IGBT pipes and with the three-phase
Each IGBT manages corresponding driving circuit and the input of bridge arm control signal in upper bridge arm IGBT pipes and three-phase lower bridge arm IGBT pipes
End, which is characterized in that the intelligent power module further includes over-current detection circuit, upper bridge over-current control circuit and lower bridge and crosses flow control
Circuit processed；
First output terminal of the over-current detection circuit connects the control terminal of the lower bridge over-current control circuit, the over-current detection
The second output terminal of circuit connects the control terminal of the upper bridge over-current control circuit, and three of the upper bridge over-current control circuit are defeated
Outlet connects bridge arm IGBT on the three-phase and manages corresponding driving circuit, three outputs of the lower bridge over-current control circuit respectively
End connects the three-phase lower bridge arm IGBT and manages corresponding driving circuit, the upper bridge over-current control circuit and the lower bridge mistake respectively
Three input terminals of flow control circuit connect corresponding bridge arm control signal input respectively；
The over-current detection circuit is used to detect the current value of the intelligent power module driving load, when the current value is more than
During predetermined current threshold, the over-current detection circuit output protection signal to the upper bridge over-current control circuit and the lower bridge mistake
Flow control circuit to disconnect the connection of corresponding IGBT pipes corresponding bridge arm control signal input and driving circuit, and controls
Bridge arm IGBT pipes end and control three IGBT pipes timesharing conducting in the three-phase lower bridge arm IGBT pipes on the three-phase,
It is released with the charge inducing of the load driven to the intelligent power module.
2. intelligent power module as described in claim 1, which is characterized in that the over-current detection circuit include comparison module,
Time delay module and output module；
The comparison module input terminal is over-current detection circuit input terminal, the comparison module output terminal connection time delay module input
End, the time delay module output terminal connect the output module, and two output terminals of the output module are the over-current detection
Circuit output end；
The voltage signal for the intelligent power module driving load current value that the comparison module input terminal inputs for detection,
And compared with preset voltage value, output overcurrent signal is to the time delay module when more than the preset voltage value, and passes through
The output module is input to after the time delay module delay, level conversion output two-way protection letter is carried out through the output module
Number to the upper bridge over-current control circuit and the lower bridge over-current control circuit.
3. intelligent power module as claimed in claim 2, which is characterized in that the comparison module includes comparator, voltage source；
One end ground connection of the voltage source, the other end connect the in-phase input end of the comparison module, the comparison module it is anti-
It is the comparison module input terminal to input terminal.
4. intelligent power module as claimed in claim 2, which is characterized in that the time delay module includes delay circuit, first
NOT gate and the second NOT gate；
The first NOT gate input terminal is the time delay module input terminal, and the first non-gate output terminal connects the delay circuit
Input terminal；
The delay circuit output terminal connects the second NOT gate input terminal, and the second non-gate output terminal is the time delay module
Output terminal.
5. intelligent power module as claimed in claim 2, which is characterized in that the output module includes the 5th NOT gate；
First output terminal of the output module is connected to the input terminal of the 5th NOT gate, institute with the output module input terminal altogether
State the second output terminal that the 5th non-gate output terminal is the output module.
6. intelligent power module as described in claim 1, which is characterized in that it is non-that the lower bridge over-current control circuit includes the 6th
Door, the 7th NOT gate, time-sharing circuit, the first analog switch, the second analog switch, the 3rd analog switch, the first OR gate, the second OR gate
With the 3rd OR gate；
The input terminal of 6th NOT gate is the lower bridge over-current control circuit control terminal, and the output terminal of the 6th NOT gate connects
The input terminal of 7th NOT gate, the output terminal of the 6th NOT gate are simulated simultaneously with first analog switch, second respectively
Switch is connected with the 3rd analog switch control terminal；
One end of first analog switch, the second analog switch and the 3rd analog switch forms the lower bridge over-current control circuit
Three input terminals, the other end of first analog switch connects an input terminal of first OR gate, second simulation
The other end of switch connects an input terminal of second OR gate, the other end connection the described 3rd of the 3rd analog switch or
One input terminal of door；
The output terminal of 7th NOT gate connects the control terminal of the time-sharing circuit, three output terminals difference of the time-sharing circuit
Connect another input terminal of first OR gate, the second OR gate and the 3rd OR gate；
The output terminal of first OR gate, the second OR gate and the 3rd OR gate forms three outputs of the lower bridge over-current control circuit
End.
7. intelligent power module as claimed in claim 6, which is characterized in that the time-sharing circuit include signal generating circuit,
4th analog switch, the first d type flip flop, the second d type flip flop and 3d flip-flop；
The signal generating circuit output terminal connects one end of the 4th analog switch, the other end of the 4th analog switch
Connect the input end of clock of first d type flip flop, the second d type flip flop and 3d flip-flop, the control of the 4th analog switch
End processed is the time-sharing circuit control terminal；
Three of the output terminal composition time-sharing circuit of first d type flip flop, the second d type flip flop and 3d flip-flop are defeated
Outlet, the first d type flip flop output terminal connect the data terminal of second d type flip flop, and the second d type flip flop output terminal connects
The data terminal of the 3d flip-flop is connect, the 3d flip-flop output terminal connects the data terminal of first d type flip flop.
8. intelligent power module as described in claim 1, which is characterized in that it is non-that the upper bridge over-current control circuit includes the 8th
Door, first with door, second with door and the 3rd and door；
The input terminal of 8th NOT gate is the upper bridge over-current control circuit control terminal, the output terminal difference of NOT gate on described the
Connect altogether with an input terminal of door with door and the 3rd with described first and door, second, described first with door, second with door and the 3rd with
Another input terminal of door forms three input terminals of the upper bridge over-current control circuit, described first with door, second with door and the
Three form three output terminals of the upper bridge over-current control circuit with the output terminal of door.
9. a kind of controller of air conditioner, the controller of air conditioner includes the intelligent power mould as described in claim 1 to 8 is any
Block.
10. a kind of air conditioner, including controller of air conditioner as claimed in claim 9.
Priority Applications (2)
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| CN201810057592.9A CN108063435B (en) | 2018-01-19 | 2018-01-19 | Intelligent power module, air conditioner controller and air conditioner |
| PCT/CN2018/097657 WO2019140882A1 (en) | 2018-01-19 | 2018-07-27 | Intelligent power module, air conditioner controller, and air conditioner |
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| CN201810057592.9A CN108063435B (en) | 2018-01-19 | 2018-01-19 | Intelligent power module, air conditioner controller and air conditioner |
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| CN108063435B CN108063435B (en) | 2020-01-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019140882A1 (en) * | 2018-01-19 | 2019-07-25 | 广东美的制冷设备有限公司 | Intelligent power module, air conditioner controller, and air conditioner |
| CN110601554A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN112731249A (en) * | 2020-12-30 | 2021-04-30 | 海信（山东）冰箱有限公司 | Electronic equipment and detection method |
| CN113556079A (en) * | 2020-04-01 | 2021-10-26 | 富士电机株式会社 | Motor driving device, motor driving method, and computer-readable medium having motor driving program recorded thereon |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007228714A (en) * | 2006-02-23 | 2007-09-06 | Mitsubishi Electric Corp | Power converter |
| CN201873396U (en) * | 2010-04-28 | 2011-06-22 | 杰佛伦西威自动化科技(上海)有限公司 | Elevator control system with controlled rectifier |
| CN105514941A (en) * | 2015-12-31 | 2016-04-20 | 联合汽车电子有限公司 | Electric vehicle inverter protective device and method |
| CN205509478U (en) * | 2015-12-31 | 2016-08-24 | 联合汽车电子有限公司 | Electric automobile dc -to -ac converter protection device |
-
2018
- 2018-01-19 CN CN201810057592.9A patent/CN108063435B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007228714A (en) * | 2006-02-23 | 2007-09-06 | Mitsubishi Electric Corp | Power converter |
| CN201873396U (en) * | 2010-04-28 | 2011-06-22 | 杰佛伦西威自动化科技(上海)有限公司 | Elevator control system with controlled rectifier |
| CN105514941A (en) * | 2015-12-31 | 2016-04-20 | 联合汽车电子有限公司 | Electric vehicle inverter protective device and method |
| CN205509478U (en) * | 2015-12-31 | 2016-08-24 | 联合汽车电子有限公司 | Electric automobile dc -to -ac converter protection device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019140882A1 (en) * | 2018-01-19 | 2019-07-25 | 广东美的制冷设备有限公司 | Intelligent power module, air conditioner controller, and air conditioner |
| CN110601554A (en) * | 2018-06-13 | 2019-12-20 | 重庆美的制冷设备有限公司 | High-integration intelligent power module and electrical equipment |
| CN113556079A (en) * | 2020-04-01 | 2021-10-26 | 富士电机株式会社 | Motor driving device, motor driving method, and computer-readable medium having motor driving program recorded thereon |
| CN113556079B (en) * | 2020-04-01 | 2023-12-26 | 富士电机株式会社 | Motor driving device, motor driving method, and computer-readable medium |
| CN112731249A (en) * | 2020-12-30 | 2021-04-30 | 海信（山东）冰箱有限公司 | Electronic equipment and detection method |
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| CN108063435B (en) | 2020-01-14 |
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