CN221042654U - IGBT single tube driving circuit for driving servo motor - Google Patents
IGBT single tube driving circuit for driving servo motor Download PDFInfo
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- CN221042654U CN221042654U CN202323025472.6U CN202323025472U CN221042654U CN 221042654 U CN221042654 U CN 221042654U CN 202323025472 U CN202323025472 U CN 202323025472U CN 221042654 U CN221042654 U CN 221042654U
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- 239000003990 capacitor Substances 0.000 claims abstract description 120
- 238000001914 filtration Methods 0.000 claims description 4
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- 230000007935 neutral effect Effects 0.000 claims 1
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- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an IGBT single-tube driving circuit for driving a servo motor, which comprises a power supply circuit and an IGBT single-tube driving circuit main body, wherein the power supply circuit comprises a rectifier bridge circuit, a transformer T1, a rectifier filter circuit and a power supply circuit, the rectifier bridge circuit, the transformer T1, the rectifier filter circuit and the power supply circuit are electrically connected with the IGBT single-tube driving circuit main body, and the rectifier filter circuit is electrically connected with the power supply circuit; the IGBT single-tube driving circuit main body comprises a three-phase half-bridge driving chip U2, and a pin 1 of the three-phase half-bridge driving chip U2 is electrically connected with one end of a capacitor C11, one end of a capacitor C8 and a 15V power supply. According to the utility model, through the arrangement of the power supply circuit and the IGBT single-tube driving circuit main body, noise interference caused by the Miller effect can be improved, and protection measures can be taken and personnel fault signals can be reminded when overcurrent occurs, so that the risk of damage to the IGBT single-tube driving circuit can be effectively reduced.
Description
Technical Field
The utility model relates to the technical field of IGBT single-tube driving circuits, in particular to an IGBT single-tube driving circuit for driving a servo motor.
Background
The IGBT is a compound full-control voltage-driven power semiconductor device composed of MOS (insulated gate field effect transistor) and BJT (bipolar transistor), has high input impedance of the MOSFET and low conduction of GTR, and is widely applied in power electronics, and the switching characteristic and the safe working area of the IGBT change along with the change of a gate driving circuit, so that the performance of the driving circuit directly influences whether the IGBT can normally work or not, and the IGBT driving circuit needs to provide certain forward and reverse driving voltages to reliably turn on and off the IGBT; providing enough instantaneous driving power or instantaneous driving current to enable the IGBT to establish a gate control electric field timely and rapidly to conduct; the input delay time and the output delay time are as small as possible so as to improve the working efficiency, and the servo motor can be used for driving a servo motor;
When the IGBT single-tube driving circuit is in an overcurrent phenomenon in the use process, a protection measure is lacking, when the IGBT single-tube driving circuit is in short circuit or a motor winding is in short circuit, the current can rise to more than 4 times of rated current, and the voltage peak is very high at the moment, so that the IGBT single-tube driving circuit can be damaged; in addition, the anti-interference capability of the IGBT single-tube driving circuit in the use process is not ideal, the use requirement cannot be met, and the situation is combined, so that the IGBT single-tube driving circuit for driving the servo motor is provided.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides an IGBT single tube driving circuit for driving a servo motor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The IGBT single-tube driving circuit comprises a power circuit and an IGBT single-tube driving circuit main body, wherein the power circuit comprises a rectifier bridge circuit, a transformer T1, a rectifier filter circuit and a power supply circuit, the rectifier bridge circuit, the transformer T1, the rectifier filter circuit and the power supply circuit are electrically connected with the IGBT single-tube driving circuit main body, and the rectifier filter circuit is electrically connected with the power supply circuit;
The IGBT single tube driving circuit main body comprises an IPM chip U2, a pin 1 of the IPM chip U2 is electrically connected with one end of a capacitor C11, one end of a capacitor C8 and a 15V power supply, the other end of the capacitor C11 and the other end of the capacitor C8 are grounded, a pin 9 of the IPM chip U2 is electrically connected with one end of a capacitor C14, a pin 13 of the IPM chip U2 is electrically connected with one end of a resistor R7, the other end of the resistor R7 is electrically connected with one end of the capacitor C14, the other end of the capacitor C14 and a pin 12 of the IPM chip U2 are grounded, a pin 16 of the IPM chip U2 is electrically connected with one end of a resistor R8, the other end of the resistor R8 is electrically connected with one end of a resistor R10, one end of a capacitor C15 and a pin 1 of a triode Q2, the other end of the resistor R10, the other end of the resistor R9 and the other end of the capacitor C15 are electrically connected with a pin 3 of the triode Q2, the other end of the resistor R9 is electrically connected with one end of the resistor R11, the other end of the resistor R9 is also electrically connected with one end of the resistor R7, the other end of the resistor R11 is electrically connected with a power ground PGND, a pin 26 of the IPM chip U2 is electrically connected with one end of the resistor R5, a pin 27 of the IPM chip U2 is electrically connected with one end of the resistor R4, the other end of the resistor R4 is electrically connected with one end of the capacitor C13 and one end of the resistor R6, the other end of the resistor R4 is also electrically connected with the pin 1 of the triode Q1, the other end of the resistor R6, the other end of the resistor R5 and the pin 2 of the triode Q2 are all connected with the pin 3 of the triode Q1, the pin 2 of the triode Q1 is electrically connected with one end of the capacitor C10 and one end of the capacitor C9, the other end of the capacitor C10 and the other end of the capacitor C9 are all electrically connected with the power ground PGND, and a pin 28 of the IPM chip U2 is electrically connected with one end of the capacitor C12, the negative pole of diode D3 and bootstrap capacitor E1's one end, the other end of electric capacity C12, bootstrap capacitor E1's the other end all with the pin 26 electric connection of IPM chip U2, diode D3's positive pole electric connection has the one end of resistance R3, and the other end electric connection of resistance R3 has 15V power.
Preferably, the rectifier bridge circuit includes a chip BG1, a pin 1 of the chip BG1 is electrically connected with one end of a capacitor C5 and an input end of a voltage PV, the other end of the capacitor C5 and a pin 4 of the chip BG1 are electrically connected with a power ground PGND, an output end of the voltage PV is electrically connected with a pin 2 of a triode Q1, one end of a capacitor C9 and one end of a capacitor C10, a pin 2 of the chip BG1 is connected with a live wire of a mains supply, and a pin 3 of the chip BG1 is connected with a zero line of the mains supply.
Preferably, the rectifying and filtering circuit includes a diode D1, the pin 12 of the transformer T1 is electrically connected with the anode of the diode D1, the pin 12 of the transformer T1 is electrically connected with one end of a capacitor C2, the other end of the capacitor C2 is electrically connected with one end of a resistor R2, the pin 10 of the transformer T1 is electrically connected with one end of a capacitor C3, one end of the capacitor C1, one end of the resistor R1 and one end of a capacitor C4, the other end of the capacitor C3, the other end of the resistor R2 and the cathode of the diode D1 are electrically connected with one end of the same inductor L1, the other end of the inductor L1 is electrically connected with the other end of the capacitor C1, the other end of the resistor R1 and the other end of the capacitor C4, one end of the capacitor C4 and the pin 10 of the transformer T1 are grounded, the pin 6 of the transformer T1 is electrically connected with the output end of a voltage PV, the pin 4 of the transformer T1 is electrically connected with a power source PGND, and the other end of the capacitor C4 is electrically connected with a 24V power source.
Preferably, the power supply circuit includes a chip U1, a pin 1 of the chip U1 is electrically connected with a cathode of a diode D2 and a 24V power supply, an anode of the diode D2 is electrically connected with a pin 3 of the chip U1, a pin 2 of the chip U1 is electrically connected with one end of a capacitor C7 and one end of a capacitor C6, the pin 2 of the chip U1 is further grounded, the other end of the capacitor C7 is electrically connected with the other end of the capacitor C4, the other end of a resistor R1, the other end of the capacitor C1 and the other end of the inductor L1, and the other end of the capacitor C6 and the pin 3 of the chip U1 are electrically connected with the 15V power supply.
Preferably, the resistor R9 is a current sampling resistor.
Preferably, the resistor R4 is a gate driving resistor of an IGBT single tube.
Compared with the prior art, the utility model has the beneficial effects that:
1. Through the matching of the rectifier bridge circuit, the transformer T1, the rectifier filter circuit, the power supply circuit and the IGBT single-tube driving circuit body, noise interference caused by the Miller effect can be improved, protection measures can be taken and personnel fault signals can be reminded when overcurrent occurs, and the risk of damage to the IGBT single-tube driving circuit can be effectively reduced;
According to the utility model, through the arrangement of the power supply circuit and the IGBT single-tube driving circuit main body, noise interference caused by the Miller effect can be improved, and protection measures can be taken and personnel fault signals can be reminded when overcurrent occurs, so that the risk of damage to the IGBT single-tube driving circuit can be effectively reduced.
Drawings
Fig. 1 is a circuit diagram of a rectifier bridge circuit of an IGBT single tube driving circuit for servo motor driving according to the present utility model;
Fig. 2 is a circuit diagram of a connection between a transformer T1 and a rectifying and filtering circuit of an IGBT single tube driving circuit for driving a servo motor according to the present utility model;
Fig. 3 is a circuit diagram of a power supply circuit of an IGBT single tube driving circuit for servo motor driving according to the present utility model;
fig. 4 is a circuit diagram of an IGBT single tube driving circuit main body of an IGBT single tube driving circuit for servo motor driving according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, an IGBT single tube driving circuit for driving a servo motor includes a power supply circuit and an IGBT single tube driving circuit main body, the power supply circuit includes a rectifier bridge circuit, a transformer T1, a rectifier filter circuit, and a power supply circuit, the rectifier bridge circuit, the transformer T1, the rectifier filter circuit, and the power supply circuit are all electrically connected with the IGBT single tube driving circuit main body, and the rectifier filter circuit is electrically connected with the power supply circuit;
The IGBT single tube driving circuit main body comprises an IPM chip U2, wherein the IPM chip U2 is used for driving an IGBT single tube, a pin 1 of the IPM chip U2 is electrically connected with one end of a capacitor C11, one end of a capacitor C8 and a 15V power supply, the other end of the capacitor C11 and the other end of the capacitor C8 are grounded, a pin 9 of the IPM chip U2 is electrically connected with one end of a capacitor C14, a pin 13 of the IPM chip U2 is electrically connected with one end of a resistor R7, the other end of the resistor R7 is electrically connected with one end of the capacitor C14, the other end of the capacitor C14 and the pin 12 of the IPM chip U2 are grounded, a pin 16 of the IPM chip U2 is electrically connected with one end of a resistor R8, the other end of the resistor R8 is electrically connected with one end of a resistor R10, one end of the capacitor C15 and the pin 1 of a triode Q2, the other end of the resistor R10 is electrically connected with one end of a resistor R9, wherein the resistor R9 is a current sampling resistor, the other end of the resistor R10, one end of the resistor R9 and the other end of the capacitor C15 are electrically connected with the pin 3 of the triode Q2, the other end of the resistor R9 is electrically connected with one end of the resistor R11, the other end of the resistor R9 is also electrically connected with one end of the resistor R7, the other end of the resistor R11 is electrically connected with the power ground PGND, the pin 26 of the IPM chip U2 is electrically connected with one end of the resistor R5, the pin 27 of the IPM chip U2 is electrically connected with one end of the resistor R4, wherein the resistor R4 is a grid driving resistor of an IGBT single tube, the resistance value can be adjusted according to different IGBT tube parameters, the other end of the resistor R4 is electrically connected with one end of the capacitor C13 and one end of the resistor R6, the capacitor C13 is an input capacitor, the capacitance value needs to be adjusted according to different IGBT tube parameters, the other end of the resistor R4 is also electrically connected with the pin 1 of the triode Q1, the other end of the capacitor C13, the other end of the resistor R6, the other end of the resistor R5 and the pin 2 of the triode Q2 are both connected with the pin 3 of the triode Q1, the pin 2 of the triode Q1 is electrically connected with one end of the capacitor C10 and one end of the capacitor C9, the other end of the capacitor C10 and the other end of the capacitor C9 are both electrically connected with the power ground PGND, the pin 28 of the IPM chip U2 is electrically connected with one end of the capacitor C12, the negative electrode of the diode D3 and one end of the bootstrap capacitor E1, the other end of the capacitor C12 and the other end of the bootstrap capacitor E1 are both electrically connected with the pin 26 of the IPM chip U2, the positive electrode of the diode D3 is electrically connected with one end of the resistor R3, and the other end of the resistor R3 is electrically connected with a 15V power supply;
The rectifier bridge circuit comprises a chip BG1, wherein a pin 1 of the chip BG1 is electrically connected with one end of a capacitor C5 and an input end of a voltage PV, the other end of the capacitor C5 and a pin 4 of the chip BG1 are electrically connected with a power ground PGND, an output end of the voltage PV is electrically connected with a pin 2 of a triode Q1, one end of a capacitor C9 and one end of a capacitor C10, a pin 2 of the chip BG1 is connected with a live wire of a mains supply, and a pin 3 of the chip BG1 is connected with a zero wire of the mains supply;
The rectifying and filtering circuit comprises a diode D1, a pin 12 of a transformer T1 is electrically connected with the anode of the diode D1, a pin 12 of the transformer T1 is also electrically connected with one end of a capacitor C2, the other end of the capacitor C2 is electrically connected with one end of a resistor R2, a pin 10 of the transformer T1 is electrically connected with one end of a capacitor C3, one end of the capacitor C1, one end of the resistor R1 and one end of a capacitor C4, the other end of the capacitor C3, the other end of the resistor R2 and the cathode of the diode D1 are electrically connected with one end of the same inductor L1, the other end of the inductor L1 is electrically connected with the other end of the capacitor C1, the other end of the resistor R1 and the other end of the capacitor C4, one end of the capacitor C4 and the pin 10 of the transformer T1 are grounded, a pin 6 of the transformer T1 is electrically connected with the output end of a voltage PV, a pin 4 of the transformer T1 is electrically connected with a power supply PGND, and the other end of the capacitor C4 is electrically connected with a 24V power supply;
The power supply circuit comprises a chip U1, a pin 1 of the chip U1 is electrically connected with a cathode of a diode D2 and a 24V power supply, wherein the diode D2 provides a reverse loop, the IPM chip U2 can be prevented from being damaged by reverse current, an anode of the diode D2 is electrically connected with a pin 3 of the chip U1, a pin 2 of the chip U1 is electrically connected with one end of a capacitor C7 and one end of a capacitor C6, the pin 2 of the chip U1 is also grounded, the other end of the capacitor C7 is electrically connected with the other end of a capacitor C4, the other end of a resistor R1, the other end of the capacitor C1 and the other end of an inductor L1, and the other end of the capacitor C6 and the pin 3 of the chip U1 are electrically connected with the 15V power supply; according to the utility model, through the arrangement of the power supply circuit and the IGBT single-tube driving circuit main body, noise interference caused by the Miller effect can be improved, and protection measures can be taken and personnel fault signals can be reminded when overcurrent occurs, so that the risk of damage to the IGBT single-tube driving circuit can be effectively reduced.
Working principle: when the intelligent power supply is used, an external 220V power supply is connected into an IGBT single-tube driving circuit main body through a voltage matching voltage PV generated after passing through a chip BG1 and a capacitor C5 in a rectifier bridge circuit, then the power supply voltage matching voltage PV passes through a transformer T1 and a rectifier filter circuit to generate 24V voltage, the 24V voltage passes through the chip U1 to generate a 15V low-noise voltage source, the 15V low-noise voltage source is used as a power supply of an IPM chip U2, the IPM chip U2 is used for driving the IGBT single-tube driving circuit main body, and meanwhile, a diode D2 provides a reverse loop, so that the reverse current can be prevented from damaging the IPM chip U2;
After passing through the current limiting resistor R3 and the diode D3, the 15V low-noise voltage source charges the bootstrap capacitor E1, and meanwhile, noise interference caused by the Miller effect can be improved by adjusting the resistor R4 and the capacitor C13;
Meanwhile, the resistance value of the resistor R4 can be adjusted according to different IGBT parameters, the capacitance value of the capacitor C13 needs to be adjusted according to different IGBT parameters, the triode Q1 and the triode Q2 respectively form a driving circuit of an upper bridge and a lower bridge, when voltage is input to the IPM chip U2, corresponding phase voltage can be output, meanwhile, corresponding overcurrent protection current can be set by changing the resistance value of the resistor R11, and a fault signal can be output by the pin 8 of the IPM chip U2 during overcurrent, so that protection measures can be taken during overcurrent and personnel fault signals can be reminded.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The IGBT single-tube driving circuit for driving the servo motor comprises a power supply circuit and an IGBT single-tube driving circuit main body, and is characterized in that the power supply circuit comprises a rectifier bridge circuit, a transformer T1, a rectifier filter circuit and a power supply circuit, wherein the rectifier bridge circuit, the transformer T1, the rectifier filter circuit and the power supply circuit are electrically connected with the IGBT single-tube driving circuit main body, and the rectifier filter circuit is electrically connected with the power supply circuit;
The IGBT single tube driving circuit main body comprises an IPM chip U2, a pin 1 of the IPM chip U2 is electrically connected with one end of a capacitor C11, one end of a capacitor C8 and a 15V power supply, the other end of the capacitor C11 and the other end of the capacitor C8 are grounded, a pin 9 of the IPM chip U2 is electrically connected with one end of a capacitor C14, a pin 13 of the IPM chip U2 is electrically connected with one end of a resistor R7, the other end of the resistor R7 is electrically connected with one end of the capacitor C14, the other end of the capacitor C14 and a pin 12 of the IPM chip U2 are grounded, a pin 16 of the IPM chip U2 is electrically connected with one end of a resistor R8, the other end of the resistor R8 is electrically connected with one end of a resistor R10, one end of a capacitor C15 and a pin 1 of a triode Q2, the other end of the resistor R10, the other end of the resistor R9 and the other end of the capacitor C15 are electrically connected with a pin 3 of the triode Q2, the other end of the resistor R9 is electrically connected with one end of the resistor R11, the other end of the resistor R9 is also electrically connected with one end of the resistor R7, the other end of the resistor R11 is electrically connected with a power ground PGND, a pin 26 of the IPM chip U2 is electrically connected with one end of the resistor R5, a pin 27 of the IPM chip U2 is electrically connected with one end of the resistor R4, the other end of the resistor R4 is electrically connected with one end of the capacitor C13 and one end of the resistor R6, the other end of the resistor R4 is also electrically connected with the pin 1 of the triode Q1, the other end of the resistor R6, the other end of the resistor R5 and the pin 2 of the triode Q2 are all connected with the pin 3 of the triode Q1, the pin 2 of the triode Q1 is electrically connected with one end of the capacitor C10 and one end of the capacitor C9, the other end of the capacitor C10 and the other end of the capacitor C9 are all electrically connected with the power ground PGND, and a pin 28 of the IPM chip U2 is electrically connected with one end of the capacitor C12, the negative pole of diode D3 and bootstrap capacitor E1's one end, the other end of electric capacity C12, bootstrap capacitor E1's the other end all with the pin 26 electric connection of IPM chip U2, diode D3's positive pole electric connection has the one end of resistance R3, and the other end electric connection of resistance R3 has 15V power.
2. The IGBT single tube driving circuit for driving a servo motor according to claim 1, wherein the rectifier bridge circuit comprises a chip BG1, a pin 1 of the chip BG1 is electrically connected with one end of a capacitor C5 and an input end of a voltage PV, the other end of the capacitor C5 and a pin 4 of the chip BG1 are electrically connected with a power ground PGND, an output end of the voltage PV is electrically connected with a pin 2 of a triode Q1, one end of a capacitor C9 and one end of a capacitor C10, a pin 2 of the chip BG1 is connected with a live wire of a mains supply, and a pin 3 of the chip BG1 is connected with a neutral wire of the mains supply.
3. The IGBT single tube driving circuit for driving a servo motor according to claim 1, wherein the rectifying and filtering circuit includes a diode D1, a pin 12 of the transformer T1 is electrically connected to an anode of the diode D1, a pin 12 of the transformer T1 is further electrically connected to one end of a capacitor C2, the other end of the capacitor C2 is electrically connected to one end of a resistor R2, a pin 10 of the transformer T1 is electrically connected to one end of a capacitor C3, one end of the capacitor C1, one end of the resistor R1 and one end of the capacitor C4, the other end of the capacitor C3, the other end of the resistor R2 and a cathode of the diode D1 are electrically connected to one end of the same inductor L1, the other end of the inductor L1 is electrically connected to the other end of the capacitor C1, the other end of the resistor R1 and the other end of the capacitor C4, the pin 10 of the transformer T1 is grounded, the pin 6 of the transformer T1 is electrically connected to an output end of the voltage PV, the pin 4 of the transformer T1 is electrically connected to a power source PGND, and the other end of the capacitor C4 is electrically connected to a 24V power source.
4. The IGBT single tube driving circuit for driving a servo motor according to claim 3, wherein the power supply circuit comprises a chip U1, a pin 1 of the chip U1 is electrically connected with a cathode of a diode D2 and a 24V power supply, an anode of the diode D2 is electrically connected with a pin 3 of the chip U1, a pin 2 of the chip U1 is electrically connected with one end of a capacitor C7 and one end of a capacitor C6, the pin 2 of the chip U1 is further grounded, the other end of the capacitor C7 is electrically connected with the other end of the capacitor C4, the other end of the resistor R1, the other end of the capacitor C1 and the other end of the inductor L1, and the other end of the capacitor C6 and the pin 3 of the chip U1 are electrically connected with a 15V power supply.
5. An IGBT single tube drive circuit for a servo motor drive according to claim 1, wherein the resistor R9 is a current sampling resistor.
6. An IGBT single tube driving circuit for servo motor driving according to claim 1, wherein the resistor R4 is a gate driving resistor of an IGBT single tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025472.6U CN221042654U (en) | 2023-11-09 | 2023-11-09 | IGBT single tube driving circuit for driving servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323025472.6U CN221042654U (en) | 2023-11-09 | 2023-11-09 | IGBT single tube driving circuit for driving servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221042654U true CN221042654U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323025472.6U Active CN221042654U (en) | 2023-11-09 | 2023-11-09 | IGBT single tube driving circuit for driving servo motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221042654U (en) |
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2023
- 2023-11-09 CN CN202323025472.6U patent/CN221042654U/en active Active
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