CN212909334U - IPM driving device - Google Patents
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- CN212909334U CN212909334U CN202021017188.8U CN202021017188U CN212909334U CN 212909334 U CN212909334 U CN 212909334U CN 202021017188 U CN202021017188 U CN 202021017188U CN 212909334 U CN212909334 U CN 212909334U
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Abstract
The utility model provides an IPM driving device, which comprises a photoelectric isolation module, an IPM driving module, a voltage transformation module and a rectification module; the input end of the photoelectric isolation module is used as a signal access end, the output end of the photoelectric isolation module is electrically connected with the input end of the IPM driving module, the output end of the IPM driving module is electrically connected with the output end of the voltage transformation module, the output end of the voltage transformation module is electrically connected with the input end of the rectification module, the output end of the rectification module is used as a signal output end, the whole device is small in size and simple in circuit structure, multiple paths of input can be expanded only by connecting input signals at the input end of the IPM driving module, and the expandability is strong.
Description
Technical Field
The utility model relates to an intelligence power module technical field, concretely relates to IPM drive arrangement.
Background
At present, most of medium and high power DC/DC power supplies adopt IGBT and IGBT driving modules. Because the IGBT is large in size, high in price and poor in expandability, if the multi-path output needs to be expanded, the design cost is increased, and finally the whole packaging is large in size and low in stability.
IPM (Intelligent Power Module) is a Power-driven product combining Power electronics and integrated circuit technology. IPM integrates a power switching device and a high-voltage driving circuit, and has a fault detection circuit for overvoltage, overcurrent, and overheat. The method gains a bigger and bigger market with the advantages of high integration degree, high reliability and the like. It is suitable for frequency converter and various inverter of driving motor, and is one ideal power electronic device for frequency varying speed regulation, metallurgical machinery, electric traction, servo drive and frequency varying household appliance.
In the prior art, the high-power DC/DC power supply designed by the IGBT and the IGBT driving module is large in size, complex in circuit structure, difficult to expand multi-path input and output and poor in expansibility.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the shortcoming among the prior art, provide an IPM drive arrangement, scalability is strong, small, circuit structure is simple and stability is high.
The purpose of the utility model is realized through the following technical scheme:
an IPM driving device comprises a photoelectric isolation module, an IPM driving module, a voltage transformation module and a rectification module;
the input end of the photoelectric isolation module is used as a signal access end, the output end of the photoelectric isolation module is electrically connected with the input end of the IPM driving module, the output end of the IPM driving module is electrically connected with the output end of the voltage transformation module, the output end of the voltage transformation module is electrically connected with the input end of the rectification module, and the output end of the rectification module is used as a signal output end.
The beneficial effects of the utility model are that, regard the input of optoelectronic isolation module as the signal access end, play the effect of keeping apart, optoelectronic isolation module output electricity signals to IPM drive module, IPM drive module integrated power switch device and high-pressure drive circuit, and have the overvoltage, overcurrent and fault detection circuit such as overheated are exported, the electric current of going out carries out vary voltage and rectifies the back as drive power supply, the whole device is small, circuit structure is simple, extension multichannel input only need connect at IPM drive module's input signal can, scalability is strong.
Further, the optoelectronic isolation module includes a plurality of optoelectronic isolators, an input end of each optoelectronic isolator is used as a signal input end, an output end of each optoelectronic isolator is connected with an input end of the IPM driver module through a first resistor, and a connection between the first resistor and the input end of the IPM driver module is grounded through a first capacitor.
The photoelectric isolator has the advantages that the photoelectric isolator performs electric-optical-electric conversion on input signals, and the input end and the output end of the photoelectric isolator are isolated from each other, so that electric signal transmission has the characteristics of unidirectionality and the like, and therefore the photoelectric isolator has good electric insulation capacity and interference resistance.
Further, the IPM driver module includes a driver of model PSS25SA2FT, and an input port of the driver is connected with a plurality of sets of filter units.
The PSS25SA2FT driver integrates the overvoltage protection circuit and the overload protection circuit, is high in safety, small in size, light in weight and stable in performance, and is provided with a plurality of groups of filter circuits to reduce interference transmitted into the PSS25SA2FT driver.
Further, each group of filtering units comprises a first polarity capacitor, a fifth diode and a second capacitor, wherein the anode of the first polarity capacitor is connected with the cathode of the fifth diode, the cathode of the first polarity capacitor is connected with the anode of the fifth diode, and the second capacitor is connected with the first polarity capacitor in parallel.
The first polarity capacitor and the fifth diode are connected in parallel in a reverse direction, when the first polarity capacitor and the second capacitor are charged, the fifth diode is high-resistance and does not influence the work of the first polarity capacitor and the second capacitor, when the first polarity capacitor and the second capacitor are discharged, the fifth diode is conducted, so that charges on the first polarity capacitor and the second capacitor are rapidly discharged, the situation that the more charges at two ends of the first polarity capacitor and the second capacitor are accumulated, the more the charges at two ends of the first polarity capacitor and the charges at two ends of the second capacitor influence the normal work of the circuit is avoided, and in addition, the first polarity capacitor and the second capacitor have a frequency wave effect.
Further, the voltage transformation module comprises a plurality of first voltage transformation units, a plurality of second voltage transformation units, a third wiring terminal, a fourth wiring terminal and an eighth capacitor;
the input ends of the first voltage transformation units are respectively connected with the output end of the driver, and the output ends of the first voltage transformation units are respectively connected with the rectification module;
the input ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the output end of the driver, the output ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the two poles of the eighth capacitor, and a plurality of second voltage transformation units are connected between the input ends of the third wiring terminal and the fourth wiring terminal.
The beneficial effect of adopting above-mentioned further scheme is that, because the output port quantity of driver is limited, set up first voltage unit and third binding post and fourth binding post at the output of driver and can directly be connected with rectifier module, and when the output that needs a lot more, only need increase the quantity of second vary voltage unit between third binding post and fourth binding post, again with rectifier module be connected can for it is convenient to expand multiplexed output, circuit structure is simple.
Further, the first voltage transformation unit comprises a first wiring terminal and a first high-frequency transformer, the input end of the first wiring terminal is connected with the output end of the driver, the first wiring terminal is connected with the first high-frequency transformer, and the output end of the first high-frequency transformer is connected with the input end of the rectification module.
The high-frequency transformer has the beneficial effects that the high-frequency transformer is adopted to transform the voltage and the current and also has the effects of safety isolation and interference suppression.
Further, the second voltage transformation unit comprises a third capacitor, a fourth capacitor, a second wiring terminal and a second high-frequency transformer;
the third capacitor and the fourth capacitor are connected in series and are respectively connected with the input ends of the third connecting terminal and the fourth connecting terminal;
the junction of the third capacitor and the fourth capacitor is connected with the input end of the second wiring terminal, the second wiring terminal is connected with the second high-frequency transformer, and the output end of the second high-frequency transformer is connected with the input end of the rectifier module.
The beneficial effect of adopting the above further scheme is that when the multi-path output needs to be expanded, only the second wiring terminal and the corresponding second high-frequency transformer need to be added at the joint of the third capacitor and the fourth capacitor, the second wiring terminal is connected with the second high-frequency transformer, and the output end of the second high-frequency transformer is connected with the input end of the rectifier module. Further, the rectifying module comprises a plurality of first rectifying units and a plurality of second rectifying units, the sum of the number of the first rectifying units and the number of the second rectifying units is the same as the sum of the number of the first voltage transformation units and the number of the second voltage transformation units, the input end of the first rectifying unit is electrically connected with the output end of the first voltage transformation unit, the output end of the first rectifying unit is used as a signal output end, the input end of the second rectifying unit is electrically connected with the output end of the second voltage transformation unit, and the output end of the second rectifying unit is used as a signal output end.
The further scheme has the advantages that the number of the rectifying units is the same as the sum of the number of the first voltage transformation units and the number of the second voltage transformation units, one rectifying unit is arranged at each of the output ends of the first high-frequency transformer and the second high-frequency transformer, and the output end of each rectifying unit is used as a signal output end.
Further, the first rectifying unit comprises a first diode, a second diode and a first inductor;
the anode of the first diode is connected with one end of the secondary coil of the first high-frequency transformer, and the anode of the second diode is connected with the other end of the secondary coil of the first high-frequency transformer;
the negative electrode of the first diode is connected with the negative electrode of the second diode, one end of the first inductor is connected with the negative electrode of the second diode, and the other end of the first inductor is connected with a center tap of the secondary coil of the first high-frequency transformer.
The first diode and the second diode are respectively connected with the secondary coil of the first high-frequency transformer to play a role in rectification, and the first inductor is connected in parallel with two ends of the first diode and the second diode, so that a loop can be provided for a self-inductance current generated when the first inductor circuit is disconnected, other elements are prevented from being broken down, and a protection effect is achieved.
Further, the second rectifying unit comprises a third diode, a fourth diode and a second inductor;
the anode of the third diode is connected with one end of the secondary coil of the second high-frequency transformer, and the anode of the fourth diode is connected with the other end of the secondary coil of the second high-frequency transformer;
and the cathode of the third diode is connected with the cathode of the fourth diode, one end of the second inductor is connected with the cathode of the fourth diode, and the other end of the second inductor is connected with a center tap of the secondary coil of the second high-frequency transformer.
The third diode and the fourth diode are respectively connected with the secondary coil of the second high-frequency transformer to play a role in rectification, the second inductor is connected in parallel with two ends of the third diode and the fourth diode, and the third diode and the fourth diode can provide a loop for self-inductance current generated when the circuit of the second inductor is disconnected, so that other elements are prevented from being broken down, and a protection effect is achieved.
Drawings
FIG. 1 is a block diagram of an embodiment of the present invention;
fig. 2 is a circuit diagram of an IPM driver module and a transformer module according to an embodiment of the present invention;
fig. 3 is a circuit diagram of an optoelectronic isolation module according to an embodiment of the present invention;
fig. 4 is a circuit structure diagram of the first rectifying unit of the present invention;
fig. 5 is a circuit diagram of a second rectifying unit according to the present invention.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Example 1
As shown in fig. 1, an IPM driving apparatus includes a photovoltaic isolation module, an IPM driving module, a voltage transformation module and a rectification module;
the input end of the photoelectric isolation module is used as a signal access end, the output end of the photoelectric isolation module is electrically connected with the input end of the IPM driving module, the output end of the IPM driving module is electrically connected with the output end of the voltage transformation module, the output end of the voltage transformation module is electrically connected with the input end of the rectification module, and the output end of the rectification module is used as a signal output end.
The input end of the photoelectric isolation module is used as a signal access end to play an isolation role, the photoelectric isolation module outputs an electric signal to the IPM drive module, the IPM drive module integrates a power switch device and a high-voltage drive circuit and has the functions of overvoltage, overcurrent, overheat and other fault detection circuit outputs, the output current is used as a drive power supply after being transformed and rectified, the whole device is small in size and simple in circuit structure, the input signal only needs to be connected at the input end of the IPM drive module for expanding multipath input, and the expandability is strong.
The photoelectric isolation module comprises a plurality of photoelectric isolators, the input end of each photoelectric isolator is used as a signal input end, the output end of each photoelectric isolator is connected with the input end of the IPM driving module through a first resistor, and the connection position of the first resistor and the input end of the IPM driving module is grounded through a first capacitor.
The photoelectric isolator performs electric-optical-electric conversion on an input signal, and the input end and the output end of the photoelectric isolator are mutually isolated, so that the electric signal transmission has the characteristics of unidirectionality and the like, and the photoelectric isolator has good electric insulation capacity and interference resistance.
In specific implementation, as shown in fig. 2 and fig. 3, in this embodiment, six inputs are provided, a PWM signal is input, the model of the optoelectronic isolator is 6N136, and a fairchild 6N136 optoelectronic isolator provided by shenzhen smart core technologies ltd is used, where the first resistor includes: r170, R171, R175, R177, R178, R179; the first capacitor includes: c184, C191, C200, C208, C206, C207;
the IPM drive module comprises a driver with the model number of PSS25SA2FT, and the input port of the driver is connected with a plurality of groups of filter units.
The PSS25SA2FT driver integrates an overvoltage protection circuit and an overload protection circuit, is high in safety, small in size, light in weight and stable in performance, and is provided with a plurality of groups of filter circuits to reduce interference transmitted into the PSS25SA2FT driver.
Each group of filtering units comprises a first polarity capacitor, a fifth diode and a second capacitor, wherein the anode of the first polarity capacitor is connected with the cathode of the fifth diode, the cathode of the first polarity capacitor is connected with the anode of the fifth diode, and the second capacitor is connected with the first polarity capacitor in parallel.
The first polarity capacitor and the fifth diode are connected in parallel in an opposite direction, when the first polarity capacitor and the second capacitor are charged, the fifth diode is high-resistance and does not affect the work of the first polarity capacitor and the second capacitor, when the first polarity capacitor and the second capacitor are discharged, the fifth diode is conducted, so that charges on the first polarity capacitor and the second capacitor are rapidly discharged, the situation that the more charges at two ends of the first polarity capacitor and the second capacitor are accumulated, the more the charges at two ends of the first polarity capacitor and the second capacitor affect the normal work of the circuit is avoided, and in addition, the first polarity capacitor and the second capacitor have a frequency wave effect.
In practical implementation, as shown in fig. 2, the PSS25SA2FT driver uses a mitsubishi PSS25SA2FT driver provided by shenzhen wireless core technologies ltd, and the first polarity capacitor includes: c189, C193, C203; the fifth diode includes: d39, D40, D42; the second capacitor includes: c190, C194 and C204.
The voltage transformation module comprises a plurality of first voltage transformation units, a plurality of second voltage transformation units, a third wiring terminal, a fourth wiring terminal and an eighth capacitor;
the input ends of the first voltage transformation units are respectively connected with the output end of the driver, and the output ends of the first voltage transformation units are respectively connected with the rectification module;
the input ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the output end of the driver, the output ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the two poles of the eighth capacitor, and a plurality of second voltage transformation units are connected between the input ends of the third wiring terminal box and the fourth wiring terminal.
Because the output port quantity of driver is limited, set up first voltage unit and third binding post and fourth binding post at the output of driver and can directly be connected with rectifier module, and when the output that needs a lot more, only need increase the quantity of second vary voltage unit between third binding post and fourth binding post, be connected with rectifier module again can for it is convenient to expand multichannel output, and circuit structure is simple.
In a specific implementation, as shown in fig. 2, the third connection terminal is a fourth connection terminal J12J 7, where the third connection terminal can be directly connected to the positive electrode of the power supply, the fourth connection terminal can be directly connected to the negative electrode of the power supply, or the third connection terminal and the fourth connection terminal can be connected to two ends of the eighth capacitor.
The first transforming unit comprises a first connecting terminal and a first high-frequency transformer T1, the input end of the first connecting terminal is connected with the output end of the driver, the first connecting terminal is connected with the first high-frequency transformer T1, and the output end of the first high-frequency transformer T1 is connected with the input end of the rectifying module.
The high-frequency transformer is adopted to transform voltage and current and also has the functions of safety isolation and interference suppression.
In specific implementation, as shown in fig. 2, in this embodiment, the output is 6 paths, the number of the first transforming units is 3, and the number of the second transforming units is 3, so that the first connection terminal includes: j8, J10, J13, each terminal being connected to a first high-frequency transformer T1.
The second transformation unit comprises a third capacitor, a fourth capacitor, a second wiring terminal and a second high-frequency transformer T2;
the third capacitor and the fourth capacitor are connected in series and are respectively connected with the input ends of the two third wiring terminals;
the junction of the third capacitor and the fourth capacitor is connected with the input end of a second connecting terminal, the second connecting terminal is connected with a second high-frequency transformer T2, and the output end of the second high-frequency transformer T2 is connected with the input end of the rectifying module.
When the multi-path output needs to be expanded, only a second connection terminal and a corresponding second high-frequency transformer T2 need to be added at the connection position of the third capacitor and the fourth capacitor, the second connection terminal is connected with the second high-frequency transformer T2, and the output end of the second high-frequency transformer T2 is connected with the input end of the rectifying module.
In specific implementation, as shown in fig. 2, the second connection terminal includes: j9, J11, J14, each terminal being connected to a second high frequency transformer T2, the third capacitor comprising: c185, C186, C187; the fourth capacitor includes: c195, C196, C197.
The rectifying module comprises a plurality of first rectifying units and a plurality of second rectifying units, the sum of the number of the first rectifying units and the number of the second rectifying units is the same as the sum of the number of the first voltage transformation units and the number of the second voltage transformation units, the input end of the first rectifying unit is electrically connected with the output end of the first voltage transformation unit, the output end of the first rectifying unit is used as a signal output end, the input end of the second rectifying unit is electrically connected with the output end of the second voltage transformation unit, and the output end of the second rectifying unit is used as a signal output end.
The sum of the number of the first rectifying units and the number of the second rectifying units is the same as the sum of the number of the first transforming units and the number of the second transforming units, the first rectifying unit or the second rectifying unit is arranged at the output end of each of the first high-frequency transformer T1 and the second high-frequency transformer T2, and the output end of each of the first rectifying unit or the second rectifying unit is used as a signal output end.
In specific implementation, as shown in fig. 4, the first rectifying unit includes a first diode D1, a second diode D2, and a first inductor L1;
an anode of the first diode D1 is connected to one end of the secondary coil of the first high-frequency transformer T1, and an anode of the second diode D2 is connected to the other end of the secondary coil of the first high-frequency transformer T1;
the cathode of the first diode D1 and the cathode of the second diode D2 are connected to each other, one end of a first inductor L1 is connected to the cathode of the second diode D2, and the other end of the first inductor L1 is connected to the center tap of the secondary winding of the first high-frequency transformer T1.
The first diode D1 and the second diode D2 are respectively connected to the secondary winding of the first high frequency transformer T1 for rectification, and then the first inductor L1 is connected in parallel to the two ends of the first diode D1 and the second diode D2, and the first diode D1 and the second diode D2 can provide a loop for the self-inductance current generated when the circuit of the first inductor L1 is disconnected, so as to prevent the breakdown of other components and protect the components.
In specific implementation, as shown in fig. 5, the second rectifying unit includes a third diode D3, a fourth diode D4, and a second inductor L2;
an anode of the third diode D3 is connected to one end of the secondary coil of the second high-frequency transformer T2, and an anode of the fourth diode D4 is connected to the other end of the secondary coil of the second high-frequency transformer T2;
a cathode of the third diode D3 and a cathode of the fourth diode D4 are connected to each other, one end of the second inductor L2 is connected to a cathode of the fourth diode D4, and the other end of the second inductor L2 is connected to a center tap of a secondary winding of the second high-frequency transformer T2.
The third diode D3 and the fourth diode D4 are respectively connected to the secondary winding of the second high-frequency transformer T2 for rectification, and the second inductor L2 is connected in parallel to two ends of the third diode D3 and the fourth diode D4, and the third diode D3 and the fourth diode D4 can provide a loop for the self-inductance current generated when the circuit of the second inductor L2 is disconnected, so as to prevent other components from being broken down, and thus, the protection function is achieved.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The IPM driving device is characterized by comprising a photoelectric isolation module, an IPM driving module, a voltage transformation module and a rectification module;
the input end of the photoelectric isolation module is used as a signal access end, the output end of the photoelectric isolation module is electrically connected with the input end of the IPM driving module, the output end of the IPM driving module is electrically connected with the output end of the voltage transformation module, the output end of the voltage transformation module is electrically connected with the input end of the rectification module, and the output end of the rectification module is used as a signal output end.
2. The IPM driver apparatus of claim 1, wherein the optoelectronic isolation module includes a plurality of optoelectronic isolators, an input end of each optoelectronic isolator is used as a signal input end, an output end of each optoelectronic isolator is connected to the input end of the IPM driver module through a first resistor, and a connection between the first resistor and the input end of the IPM driver module is grounded through a first capacitor.
3. An IPM driver apparatus according to claim 2, wherein said IPM driver module comprises a driver model PSS25SA2FT, and a plurality of sets of filter units are connected to an input port of said driver.
4. An IPM drive as claimed in claim 3, wherein each group of said filter units comprises a first polarity capacitor, a fifth diode and a second capacitor, an anode of said first polarity capacitor is connected to a cathode of said fifth diode, a cathode of said first polarity capacitor is connected to an anode of said fifth diode, and said second capacitor is connected in parallel with said first polarity capacitor.
5. An IPM drive apparatus as claimed in claim 3 or 4, wherein said transformer module comprises a plurality of first transformer units, a plurality of second transformer units, a third terminal, a fourth terminal and an eighth capacitor;
the input ends of the first voltage transformation units are respectively connected with the output end of the IPM drive module, and the output ends of the first voltage transformation units are respectively connected with the rectifier module;
the input ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the output end of the driver, the output ends of the third wiring terminal and the fourth wiring terminal are respectively connected with the two poles of the eighth capacitor, and a plurality of second voltage transformation units are connected between the input ends of the third wiring terminal and the fourth wiring terminal.
6. An IPM driver according to claim 5, wherein said first transformer unit includes a first connection terminal and a first high frequency transformer, an input terminal of said first connection terminal is connected to an output terminal of said driver, said first connection terminal is connected to said first high frequency transformer, and an output terminal of said first high frequency transformer is connected to an input terminal of said rectifier module.
7. An IPM driving apparatus according to claim 6, wherein said second transformer unit includes a third capacitor, a fourth capacitor, a second connection terminal and a second high frequency transformer;
the third capacitor and the fourth capacitor are connected in series and are respectively connected with the input ends of the third connecting terminal and the fourth connecting terminal;
the junction of the third capacitor and the fourth capacitor is connected with the input end of the second wiring terminal, the second wiring terminal is connected with the second high-frequency transformer, and the output end of the second high-frequency transformer is connected with the input end of the rectifier module.
8. The IPM driver according to claim 7, wherein the rectifier module includes a plurality of first rectifier units and a plurality of second rectifier units, a sum of the numbers of the first rectifier units and the second rectifier units is equal to a sum of the numbers of the first transformer units and the second transformer units, an input terminal of the first rectifier unit is electrically connected to an output terminal of the first transformer unit, an output terminal of the first rectifier unit serves as a signal output terminal, an input terminal of the second rectifier unit is electrically connected to an output terminal of the second transformer unit, and an output terminal of the second rectifier unit serves as a signal output terminal.
9. The IPM driving apparatus of claim 8, wherein the first rectifying unit includes a first diode, a second diode and a first inductor;
the anode of the first diode is connected with one end of the secondary coil of the first high-frequency transformer, and the anode of the second diode is connected with the other end of the secondary coil of the first high-frequency transformer;
the negative electrode of the first diode is connected with the negative electrode of the second diode, one end of the first inductor is connected with the negative electrode of the second diode, and the other end of the first inductor is connected with a center tap of the secondary coil of the first high-frequency transformer.
10. An IPM driver according to claim 9, wherein said second rectifying unit includes a third diode, a fourth diode and a second inductor;
the anode of the third diode is connected with one end of the secondary coil of the second high-frequency transformer, and the anode of the fourth diode is connected with the other end of the secondary coil of the second high-frequency transformer;
and the cathode of the third diode is connected with the cathode of the fourth diode, one end of the second inductor is connected with the cathode of the fourth diode, and the other end of the second inductor is connected with a center tap of the secondary coil of the second high-frequency transformer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021017188.8U CN212909334U (en) | 2020-06-05 | 2020-06-05 | IPM driving device |
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|---|---|---|---|
| CN202021017188.8U CN212909334U (en) | 2020-06-05 | 2020-06-05 | IPM driving device |
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| CN212909334U true CN212909334U (en) | 2021-04-06 |
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