CN205960632U - Converter protection circuit based on DSP and IPM module - Google Patents
Converter protection circuit based on DSP and IPM module Download PDFInfo
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- CN205960632U CN205960632U CN201620760332.4U CN201620760332U CN205960632U CN 205960632 U CN205960632 U CN 205960632U CN 201620760332 U CN201620760332 U CN 201620760332U CN 205960632 U CN205960632 U CN 205960632U
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Abstract
The utility model discloses a converter protection circuit based on DSP and IPM module, include: main control unit circuit, IPM module circuit, overvoltage crowbar, excess temperature protection circuit, current foldback circuit and trouble blockade circuit, this embodiment uses the DSP control chip TMS320LF2406 and the intelligent power module IPM module IRAMS10UP60B of IR company of TI company, and through sampling direct current busbar voltage, inside temperature and the current signal of IPM module transmits for main control unit TMS320LF2406, carries out data contrast and assay, and whether the judgement circuit overvoltage appears, excessively slowly unsafe condition such as overflow, if it is dangerous, main control unit sends and blockades signal FAULT and PDPINTA, wherein FAULT is used for blockadeing the SVPWM pulse of IPM module, PDPINTA blockades six way SVPWM pulses that TMS320LF2406 produced, TMS320LF2406 sends the IPM_EN signal and blockades 74AC244 simultaneously, the multi -azimuth based on the software and hardware has been realized, the protection of a plurality of closed -loop circuit, the safe and reliable operation of converter has been realized.
Description
Technical field
This utility model belong to converter resist technology field and in particular to be that one kind has over-pressed, excessively gentle excessively stream
The multifunctional protection circuit of protection.
Background technology
Converter is the controller being applied to the fields such as numerical control, elevator and automobile, and its performance concerns the safety of equipment,
Concern the safety of staff, thereby ensure that converter is most important using safety.At present, the control design case of converter is big
It is all based on DSP Master control chip more, and the design of the major loop of a lot of Small-power Inverter is all based on (SPM)
IPM module, it is integrated with three-phase inverter, protection circuit and drive circuit, has small volume, lightweight, design is simple, anti-dry
Many advantages, such as ability of disturbing is strong.
Content of the invention
For the technical conditions of existing main control and integrated package development, converter protection circuit described in the utility model
Fully apply master controller TMS320LF2406 and the feature of IPM module (SPM), first, adopt from major loop
Sample DC bus-bar voltage, second, the temperature of IPM module and current signal from IPM internal sample, and above signal fed back
Give master controller, through calculating and comparing, whether decision circuitry is over-pressed, excessively gentle excessively stream for main control, if circuit is over-pressed, mistake
Temperature or excessively stream, master controller sends locking signal FAULT and PDPINTA, and FAULT blocks six road SVPWM arteries and veins of IPM module
Punching, PDPINTA blocks the six road SVPWM pulses that TMS320LF2406 produces, and TMS320LF2406 sends IPM_EN signal simultaneously
Block 74AC244 output six road SVPWM pulses, therefore this protection circuit achieve multi-faceted based on software and hardware, multiple
Circuit closed loop is protected, and brings safety and facility to the use of converter.
A kind of converter protection circuit based on DSP and IPM module, including：Main controller circuit, IPM modular circuit, mistake
Voltage protection circuit, thermal-shutdown circuit, current foldback circuit and fault lockout circuit；
Described main controller circuit and IPM modular circuit, overvoltage crowbar, thermal-shutdown circuit, overcurrent protection electricity
Road is connected with fault lockout circuit, and it is used for sampled voltage, electric current and temperature signal, contrasts by analysis, sends protection control
Signal；
Described IPM modular circuit and main controller circuit, thermal-shutdown circuit, current foldback circuit and fault block
Circuit is connected, and it is used for driving asynchronous machine, exports temperature and the corresponding voltage signal of electric current of IPM inside modules meanwhile；
Described overvoltage crowbar is connected with main controller circuit, and it is used for sample DC bus-bar voltage signal and reference
Voltage is compared, and controls the release of leadage circuit energy, thus reducing DC bus-bar voltage, protects inverter；
Described thermal-shutdown circuit and main controller circuit, IPM modular circuit is connected, and it is used for the temperature of IPM module
Degree signal feeds back to master controller, and in IPM module excess temperature, master controller sends signal block SVPWM pulse, protection module；
Described current foldback circuit is connected with main controller circuit, IPM modular circuit, and it is used for the electricity of IPM module
Stream signal feeds back to master controller, and in IPM module excessively stream, master controller blocks SVPWM pulse, protection module；
Described fault lockout circuit is connected with main controller circuit, IPM modular circuit, and it is used in DC bus-bar voltage
When over-pressed, IPM excessively gentle excessively stream when, master controller sends signal FAULT and PDPINTA, blocks SVPWM pulse, protection module；
Described main controller circuit includes DSP control chip U2 (TMS320LF2406), buffer chip U3
(74HC244)；Wherein：6th foot of U2 is connected with locking signal PDPINTA, and the 51st foot of U2 and IPM module enable signal IPM_
EN is connected, and the 79th foot of U2 is connected with current sampling signal I_DC_AD, the 77th foot of U2 and temperature sampling signal TEMP_AD phase
Even, the 74th foot of U2 is connected with DC bus-bar voltage sampled signal VDC_AD, the 28th foot of U2,31 feet, 33 feet, 36 feet, 37 feet
It is connected with the 2nd foot of U3,4 feet, 6 feet, 8 feet, 11 feet and 13 feet respectively with 39 feet, the 1st foot of U3 and 19 feet are simultaneously coupled to make
Can signal IPM_EN, the 18th foot of U3,16 feet, 14 feet, 12 feet, 9 feet and 7 feet respectively with signal UP, UN, VP, VN, WP and WN phase
Even, the 10th foot of U3 is connected with ground, and the 20th foot of U3 is connected with+5V power supply.
Described IPM modular circuit includes IPM module U1 (IRAMS10UP60B), ceramic condenser C1, C2 and C3, electrolysis electricity
Hold C4, C5 and C6, asynchronous machine IM；Wherein：13rd foot of U1,15 feet, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet and 22
Foot connects with signal TEMP_AD, UP, VP, WP, UN, VN, WN, FAULT (fault-signal) and IRP (current signal) respectively, U1's
14th foot and the connection of+15V power supply, the 7th foot of U1 and C1 one end, anode connection, the 8th foot of U1 and the C1 other end of C4, C4's
Negative terminal is connected to the U end of IM, the 4th foot of U1 and C2 one end, anode connection, the 5th foot of U1 and the C2 other end of C5, and C5's is negative
End is connected to V end, the 1st foot of U1 and C3 one end of IM, anode connection, the 2nd foot of U1 and the C3 other end of C6, and the negative terminal of C6 is even
It is connected to the W end of IM, the 10th foot of U1 and DC bus-bar voltage VPP connect, and the 12nd foot of U1 and ground connect.
Described overvoltage crowbar includes electrochemical capacitor C8, ceramic condenser C7 and C9, resistance R1～R7, voltage comparator
U4A (LM339), metal-oxide-semiconductor Q1, diode D1；Wherein：One end of the anode of C8 and R2, R3 is connected to DC bus-bar voltage VPP,
The negative terminal of C8 and the other end of R3, one end of R4 is connected to ground, the other end of R2, and one end of R1 and the other end of R4 are connected to
5th foot of U4A, the other end of R1 and one end of C7 are connected to signal VDC_AD, and the other end of C7 and ground connect, the 4th foot of U4A
Connect with basis reference voltage+2.5V, the 3rd foot of U4A and+15V power supply connect, the 12nd foot of U4A and ground connect, the 2nd of U4A the
One end connection, the other end of R5 and one end of R6, C9 of foot and R5, is connected to the grid of Q1, the other end of R6, C9 and the source of Q1
Pole is connected to ground, and one end of the drain electrode of Q1 and the negative electrode of D1, R7 connects, and the anode of D1 and the other end of R7 are connected to VPP.
Described thermal-shutdown circuit includes resistance R8, ceramic condenser C10, C11；Wherein：One end of resistance R8 and power supply+
3.3V connects, and the other end of R8 and one end of C11 are connected to signal TEMP_AD, and the other end of C11 and one end of C10 are connected to
Ground, the other end of C10 and+15V power supply connect.
Described current foldback circuit includes resistance R11～R14, ceramic condenser C12 and C13, operational amplifier U5B
(LM358), diode D2；Wherein：One end of one end of resistance R11 and C12 is connected to current signal ITR, and resistance R11's is another
5th foot of end and U5B connects, and one end of the other end of C12 and resistance R12 is connected to ground, the other end of R12 and one end of R13
Be connected to the 6th foot of U5B, the other end of R13 and one end of R14, the 1st foot of D2 is connected to the 7th foot of U5B, the 2nd foot of D2 and
Ground connects, and the 3rd foot of D2 and+3.3V connect, and one end of the other end of R14 and electric capacity C13 is connected to signal I_DC_AD, electric capacity
The other end of C13 and ground connect.
Described fault lockout circuit includes resistance R16～R19, ceramic condenser C14, audion T2；Wherein：Resistance R16
One end and signal IPM_EN connect, the other end of resistance R16 and one end of C14 are connected to the base stage of T2, the other end of C14,
The emitter stage of one end of R19 and T2 is connected to ground, and the colelctor electrode of T2 and one end of R17, R18 are connected to signal FAULT, R17's
The other end and+5V connect, and the other end of R18 and the other end of R19 are connected to signal PDPINTA.
This utility model is a kind of fully to apply master controller based on the converter protection circuit of DSP and IPM module
The feature of TMS320LF2406 and IPM module (SPM), has up-sampled DC bus-bar voltage from major loop respectively, from
IPM inside modules have been sampled its temperature and current signal, and above signal feedback is given master controller, and main control is through calculating
With compare, whether decision circuitry over-pressed, excessively gentle excessively stream, if circuit is over-pressed, excess temperature or excessively stream, master controller sends block
Signal FAULT and PDPINTA, has blocked the six road SVPWM pulses that the work of IPM module and TMS320LF2406 produce respectively,
Protect module and motor.Therefore this protection circuit achieves multi-faceted based on software and hardware, multiple closed loop circuit protection, gives
The use of converter brings safety and facility.
Brief description
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of main controller circuit.
Fig. 3 is the structural representation of IPM modular circuit.
Fig. 4 is the structural representation of overvoltage crowbar.
Fig. 5 is the structural representation of thermal-shutdown circuit.
Fig. 6 is the structural representation of current foldback circuit.
Fig. 7 is the structural representation of fault lockout circuit.
Specific embodiment
In order to more specifically describe this utility model, below in conjunction with the accompanying drawings and specific embodiment is to of the present utility model
Technical scheme is described in detail.
As shown in figure 1, a kind of converter protection circuit based on DSP and IPM module, including：Main controller circuit, IPM
Modular circuit, overvoltage crowbar, thermal-shutdown circuit, current foldback circuit and fault lockout circuit；
Main controller circuit and IPM modular circuit, overvoltage crowbar, thermal-shutdown circuit, current foldback circuit and event
Barrier lockout circuit is connected, and it is used for sampled voltage, electric current and temperature signal, contrasts by analysis, sends protection control signal；This
In embodiment, main controller circuit includes DSP control chip U2 (TMS320LF2406), buffer chip U3 (74HC244)；
Wherein：6th foot of U2 is connected with locking signal PDPINTA, and the 51st foot of U2 enables signal IPM_EN with IPM module and is connected, U2
The 79th foot be connected with current sampling signal I_DC_AD, the 77th foot of U2 is connected with temperature sampling signal TEMP_AD, the of U2
74 feet are connected with DC bus-bar voltage sampled signal VDC_AD, and the 28th foot of U2,31 feet, 33 feet, 36 feet, 37 feet and 39 feet are respectively
It is connected with the 2nd foot of U3,4 feet, 6 feet, 8 feet, 11 feet and 13 feet, the 1st foot of U3 and 19 feet are simultaneously coupled to enable signal IPM_
18th foot of EN, U3,16 feet, 14 feet, 12 feet, 9 feet and 7 feet are connected with WN with signal UP, UN, VP, VN, WP respectively, and the of U3
10 feet are connected with ground, and the 20th foot of U3 is connected with+5V power supply.
IPM modular circuit and main controller circuit, thermal-shutdown circuit, current foldback circuit and fault lockout circuit phase
Even, it is used for driving asynchronous machine, exports temperature and the corresponding voltage signal of electric current of IPM inside modules meanwhile；This embodiment party
In formula, IPM modular circuit includes IPM module U1 (IRAMS10UP60B), ceramic condenser C1, C2 and C3, electrochemical capacitor C4, C5 and
C6, asynchronous machine IM；Wherein：13rd foot of U1,15 feet, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet and 22 feet respectively and
Signal TEMP_AD, UP, VP, WP, UN, VN, WN, FAULT (fault-signal) and IRP (current signal) connect, the 14th foot of U1 and
The connection of+15V power supply, the 7th foot of U1 and C1 one end, anode connection, the 8th foot of U1 and the C1 other end of C4, the negative terminal of C4 connects
In the U end of IM, the 4th foot of U1 and C2 one end, anode connection, the 5th foot of U1 and the C2 other end of C5, the negative terminal of C5 is connected to IM
V end, the 1st foot of U1 and C3 one end, the anode of C6 connects, the 2nd foot of U1 and the C3 other end, and the negative terminal of C6 is connected to the W of IM
End, the 10th foot of U1 and DC bus-bar voltage VPP connect, and the 12nd foot of U1 and ground connect.
Overvoltage crowbar is connected with main controller circuit, and it is used for sampling DC bus-bar voltage signal and reference voltage enters
Row compares, and controls the release of leadage circuit energy, thus reducing DC bus-bar voltage, protects inverter；In present embodiment, mistake
Voltage protection circuit includes electrochemical capacitor C8, ceramic condenser C7 and C9, resistance R1～R7, voltage comparator U4A (LM339), metal-oxide-semiconductor
Q1, diode D1；Wherein：One end of the anode of C8 and R2, R3 is connected to DC bus-bar voltage VPP, and the negative terminal of C8 and R3's is another
One end, one end of R4 is connected to ground, the other end of R2, and one end of R1 and the other end of R4 are connected to the 5th foot of U4A, and R1's is another
One end of one end and C7 is connected to signal VDC_AD, and the other end of C7 and ground connect, and the 4th foot of U4A and basis reference voltage+
2.5V connects, and the 3rd foot of U4A and+15V power supply connect, and the 12nd foot of U4A and ground connect, and one end of the 2nd foot of U4A and R5 is even
Connect, the other end of R5 and one end of R6, C9 are connected to the grid of Q1, the other end of R6, C9 and the source electrode of Q1 are connected to ground, Q1's
The negative electrode of drain electrode and D1, one end of R7 connect, and the anode of D1 and the other end of R7 are connected to VPP.
Thermal-shutdown circuit and main controller circuit, IPM modular circuit is connected, and it is used for the temperature signal of IPM module
Feed back to master controller, in IPM module excess temperature, master controller sends signal block SVPWM pulse, protection module；This enforcement
In mode, thermal-shutdown circuit includes resistance R8, ceramic condenser C10, C11；Wherein：One end of resistance R8 and power supply+3.3V are even
Connect, the other end of R8 and one end of C11 are connected to signal TEMP_AD, and the other end of C11 and one end of C10 are connected to ground, C10
The other end and+15V power supply connect.
Current foldback circuit is connected with main controller circuit, IPM modular circuit, and it is used for the current signal of IPM module
Feed back to master controller, in IPM module excessively stream, master controller blocks SVPWM pulse, protection module；In present embodiment, mistake
Stream protection circuit includes resistance R11～R14, ceramic condenser C12 and C13, operational amplifier U5B (LM358), diode D2；Its
In：One end of one end of resistance R11 and C12 is connected to current signal ITR, and the 5th foot of the other end of resistance R11 and U5B connects,
One end of the other end of C12 and resistance R12 is connected to ground, and the other end of R12 and one end of R13 are connected to the 6th foot of U5B, R13
The other end and R14 one end, the 1st foot of D2 is connected to the 7th foot of U5B, and the 2nd foot of D2 and ground connect, the 3rd foot of D2 and+
3.3V connects, and one end of the other end of R14 and electric capacity C13 is connected to signal I_DC_AD, and the other end of electric capacity C13 and ground connect.
Fault lockout circuit is connected with main controller circuit, IPM modular circuit, and it is used in DC bus-bar voltage overvoltage
When, IPM excessively gentle excessively stream when, master controller sends signal FAULT and PDPINTA, blocks SVPWM pulse, protection module；This reality
Apply in mode, fault lockout circuit includes resistance R16～R19, ceramic condenser C14, audion T2；Wherein：One end of resistance R16
Connect with signal IPM_EN, the other end of resistance R16 and one end of C14 are connected to the base stage of T2, the other end of C14, the one of R19
End, the emitter stage of T2 is connected to ground, and one end of the colelctor electrode of T2 and R17, R18 connects, and the other end of R17 and+5V connect, R18
The other end and one end of R19 be connected to signal PDPINTA.
Present embodiment fully applies master controller TMS320LF2406 and the spy of IPM module (SPM)
Point, first, up-sample DC bus-bar voltage from major loop, second, the temperature of IPM module and electric current from IPM internal sample
Signal, and above signal feedback is given master controller, main control through calculating and comparing, decision circuitry whether overvoltage, excess temperature
And excessively stream, if circuit is over-pressed, excess temperature or excessively stream, master controller sends locking signal FAULT and PDPINTA, and FAULT blocks
Six road SVPWM pulses of IPM module, PDPINTA blocks the six road SVPWM pulses that TMS320LF2406 produces, simultaneously
TMS320LF2406 send IPM_EN signal block 74AC244, therefore this protection circuit achieve multi-faceted based on software and hardware,
Multiple closed loop circuit protection, brings safety and facility to the use of converter.
Claims (1)
1. a kind of converter protection circuit based on DSP and IPM module, including：Main controller circuit, IPM modular circuit, overvoltage
Protection circuit, thermal-shutdown circuit, current foldback circuit and fault lockout circuit；It is characterized in that：
Described main controller circuit and IPM modular circuit, overvoltage crowbar, thermal-shutdown circuit, current foldback circuit and
Fault lockout circuit is connected, and it is used for sampled voltage, electric current and temperature signal, contrasts by analysis, sends protection control signal；
Described IPM modular circuit and main controller circuit, thermal-shutdown circuit, current foldback circuit and fault lockout circuit phase
Even, it is used for driving asynchronous machine, exports temperature and the corresponding voltage signal of electric current of IPM inside modules meanwhile；
Described overvoltage crowbar is connected with main controller circuit, and it is used for sample DC bus-bar voltage signal and reference voltage
Being compared, control the release of leadage circuit energy, thus reducing DC bus-bar voltage, protecting inverter；
Described thermal-shutdown circuit and main controller circuit, IPM modular circuit is connected, and it is used for the temperature letter of IPM module
Number feed back to master controller, in IPM module excess temperature, master controller sends signal block SVPWM pulse, protection module；
Described current foldback circuit is connected with main controller circuit, IPM modular circuit, and it is used for the electric current letter of IPM module
Number feed back to master controller, in IPM module excessively stream, master controller blocks SVPWM pulse, protection module；
Described fault lockout circuit is connected with main controller circuit, IPM modular circuit, and it is used in DC bus-bar voltage overvoltage
When, IPM excessively gentle excessively stream when, master controller sends signal FAULT and PDPINTA, blocks SVPWM pulse, protection module；
Described main controller circuit includes DSP control chip U2, buffer chip U3；Wherein：6th foot of U2 and locking signal
PDPINTA is connected, and the 51st foot of U2 and IPM module enable signal IPM_EN and be connected, the 79th foot of U2 and current sampling signal I_
DC_AD is connected, and the 77th foot of U2 is connected with temperature sampling signal TEMP-AD, and the 74th foot of U2 and DC bus-bar voltage sampling are believed
Number VDC_AD is connected, the 28th foot of U2,31 feet, 33 feet, 36 feet, 37 feet and 39 feet respectively with the 2nd foot of U3,4 feet, 6 feet, 8 feet,
11 feet and 13 feet are connected, and the 1st foot of U3 and 19 feet are simultaneously coupled to enable signal IPM_EN, the 18th foot of U3,16 feet, 14 feet,
12 feet, 9 feet and 7 feet are connected with WN with signal UP, UN, VP, VN, WP respectively, the 10th foot of U3 with ground be connected, the 20th foot of U3 and
+ 5V power supply is connected.
Described IPM modular circuit includes IPM module U1, ceramic condenser C1, C2 and C3, electrochemical capacitor C4, C5 and C6, asynchronous electricity
Machine IM；Wherein：13rd foot of U1,15 feet, 16 feet, 17 feet, 18 feet, 19 feet, 20 feet, 21 feet and 22 feet respectively with signal TEMP_
AD, UP, VP, WP, UN, VN, WN, FAULT and IRP connection, the 14th foot of U1 and the connection of+15V power supply, the 7th foot of U1 and C1 mono-
End, anode connection, the 8th foot of U1 and the C1 other end of C4, the negative terminal of C4 is connected to the U end of IM, the 4th foot of U1 and C2 one end,
Anode connection, the 5th foot of U1 and the C2 other end of C5, the negative terminal of C5 is connected to the V end of IM, the 1st foot of U1 and C3 one end, C6's
Anode connection, the 2nd foot of U1 and the C3 other end, the negative terminal of C6 is connected to the W end of IM, the 10th foot of U1 and DC bus-bar voltage
VPP connects, and the 12nd foot of U1 and ground connect.
Described overvoltage crowbar includes electrochemical capacitor C8, ceramic condenser C7 and C9, resistance R1～R7, voltage comparator U4A,
Metal-oxide-semiconductor Q1, diode D1；Wherein：One end of the anode of C8 and R2, R3 is connected to DC bus-bar voltage VPP, the negative terminal of C8 and R3
The other end, one end of R4 is connected to ground, the other end of R2, and one end of R1 and the other end of R4 are connected to the 5th foot of U4A, R1
The other end and C7 one end be connected to signal VDC_AD, the C7 other end and ground connect, the 4th foot of U4A and basis reference voltage+
2.5V connects, and the 3rd foot of U4A and+15V power supply connect, and the 12nd foot of U4A and ground connect, and one end of the 2nd foot of U4A and R5 is even
Connect, the other end of R5 and one end of R6, C9 are connected to the grid of Q1, the other end of R6, C9 and the source electrode of Q1 are connected to ground, Q1's
The negative electrode of drain electrode and D1, one end of R7 connect, and the anode of D1 and the other end of R7 are connected to VPP.
Described thermal-shutdown circuit includes resistance R8, ceramic condenser C10, C11；Wherein：One end of resistance R8 and power supply+3.3V
Connect, the other end of R8 and one end of C11 are connected to signal TEMP_AD, and the other end of C11 and one end of C10 are connected to ground,
The other end of C10 and+15V power supply connect.
Described current foldback circuit includes resistance R11～R14, ceramic condenser C12 and C13, operational amplifier U5B, diode
D2；Wherein：One end of one end of resistance R11 and C12 is connected to current signal ITR, the 5th foot of the other end of resistance R11 and U5B
Connect, one end of the other end of C12 and resistance R12 is connected to ground, and the other end of R12 and one end of R13 are connected to the 6th of U5B
Foot, the other end of R13 and one end of R14, the 1st foot of D2 is connected to the 7th foot of U5B, and the 2nd foot of D2 and ground connect, and the 3rd of D2 the
Foot and+3.3V connect, and one end of the other end of R14 and electric capacity C13 is connected to signal I_DC_AD, the other end of electric capacity C13 and
Ground connects.
Described fault lockout circuit includes resistance R16～R19, ceramic condenser C14, audion T2；Wherein：The one of resistance R16
End and signal IPM_EN connect, and the other end of resistance R16 and one end of C14 are connected to the base stage of T2, the other end of C14, R19's
The emitter stage of one end and T2 is connected to ground, and one end of the colelctor electrode of T2 and R17, R18 connects signal FAULT, the other end of R17 and
+ 5V connects, and the other end of R18 and the other end of R19 are connected to signal PDPINTA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760332.4U CN205960632U (en) | 2016-07-11 | 2016-07-11 | Converter protection circuit based on DSP and IPM module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620760332.4U CN205960632U (en) | 2016-07-11 | 2016-07-11 | Converter protection circuit based on DSP and IPM module |
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| Publication Number | Publication Date |
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| CN205960632U true CN205960632U (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620760332.4U Expired - Fee Related CN205960632U (en) | 2016-07-11 | 2016-07-11 | Converter protection circuit based on DSP and IPM module |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786393A (en) * | 2017-03-29 | 2017-05-31 | 深圳市奥地特电气技术有限公司 | A kind of current foldback circuit of AD200 frequency converters |
| CN109799721A (en) * | 2019-01-31 | 2019-05-24 | 海信（山东）空调有限公司 | A kind of control circuit of household electrical appliance, control method and household electrical appliance |
| CN112578773A (en) * | 2020-12-30 | 2021-03-30 | 南京康尼电子科技有限公司 | IPM fault detection and protection device and method for rail vehicle door control |
| CN116093888A (en) * | 2023-04-08 | 2023-05-09 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
-
2016
- 2016-07-11 CN CN201620760332.4U patent/CN205960632U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786393A (en) * | 2017-03-29 | 2017-05-31 | 深圳市奥地特电气技术有限公司 | A kind of current foldback circuit of AD200 frequency converters |
| CN109799721A (en) * | 2019-01-31 | 2019-05-24 | 海信（山东）空调有限公司 | A kind of control circuit of household electrical appliance, control method and household electrical appliance |
| CN109799721B (en) * | 2019-01-31 | 2021-12-14 | 海信（山东）空调有限公司 | Control circuit and control method of household appliance and household appliance |
| CN112578773A (en) * | 2020-12-30 | 2021-03-30 | 南京康尼电子科技有限公司 | IPM fault detection and protection device and method for rail vehicle door control |
| CN116093888A (en) * | 2023-04-08 | 2023-05-09 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
| CN116093888B (en) * | 2023-04-08 | 2023-08-18 | 辰星（天津）自动化设备有限公司 | Industrial robot power module protection system |
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