CN107861019A - A kind of detecting system and detection method of H bridges - Google Patents
A kind of detecting system and detection method of H bridges Download PDFInfo
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- CN107861019A CN107861019A CN201711180446.7A CN201711180446A CN107861019A CN 107861019 A CN107861019 A CN 107861019A CN 201711180446 A CN201711180446 A CN 201711180446A CN 107861019 A CN107861019 A CN 107861019A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
Abstract
The invention discloses a kind of detecting system and method for H bridges.The present invention provides a kind of detecting system and detection method of H bridges, and the detecting system of H bridges includes pulse-generating circuit, the first sampling resistor, the second sampling resistor and current potential comparison circuit, and circuit structure is simple and can realize the detection of the connection status of H bridges；After pulse-generating circuit produces the power cathode end of the H bridges of pulse input the first, whether the power cathode end that the first H bridges are detected by current potential comparison circuit is consistent with the current potential at the power cathode end of the 2nd H bridges, to judge the connection status of the first H bridges and the 2nd H bridges, the connection status inspection method of H bridges is efficient and convenient, and testing result is accurate.
Description
Technical field
The present invention relates to motor Qu Donglingyu, more particularly, to a kind of detecting system and detection method of H bridges.
Background technology
In motor driving, motor is driven using H bridges inside driving chip, drives a stepper motor to need two
Individual H bridges, a brush direct current motor is driven to need a H bridge.Now in order to increase driving force of the H bridges to motor, by two H
It is used for driving same motor after bridge parallel connection, so as to increase driving current, the driving force to motor is increased, in such case
Under, delay is produced because signal transmission path is different, two H bridges can be caused to gang up phenomenon so that two H bridges do not have
Effect is together in parallel, and can not realize the normal application in parallel of H bridges, it is therefore desirable to and whether detect two H bridges in parallel, and according to detecting
Whether result in parallel is further is handled.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide a kind of detecting system and detection method of H bridges, use
Whether it is application in parallel in detecting two H bridges.
The technical solution adopted in the present invention is：A kind of detecting system of H bridges, the detecting system of the H bridges include the first H
Bridge, the 2nd H bridges, pulse-generating circuit, the first sampling resistor, the second sampling resistor and current potential comparison circuit, the first H bridges,
2nd H bridges are used to motor, be it is to be detected whether two H bridges in parallel, the first H bridges, the 2nd H bridges and motor company
Connect；The output end of the pulse-generating circuit is connected with the power cathode end of the first H bridges, for exporting transient pulse to the first H
The power cathode end of bridge；The power cathode end of the first H bridges is grounded by the first sampling resistor, the power supply of the 2nd H bridges
Negative pole end is grounded by the second sampling resistor；The ungrounded end (i.e. the power cathode end of the first H bridges) of first sampling resistor,
The ungrounded end (i.e. the power cathode end of the 2nd H bridges) of second sampling resistor is connected with the input of current potential comparison circuit；It is described
Current potential comparison circuit is used for when transient pulse is input to the power cathode end of the first H bridges, detects the power cathode end of the first H bridges
It is whether consistent with the current potential at the power cathode end of the 2nd H bridges, to judge the connection status of the first H bridges and the 2nd H bridges.
Further, the first H bridges include the first NMOS tube, the second NMOS tube, the 3rd NMOS tube and the 4th NMOS tube,
The drain electrode of first NMOS tube, the drain electrode of the second NMOS tube are connected as the power positive end of the first H bridges with positive source, institute
The source electrode for stating the first NMOS tube is connected with the drain electrode of the 3rd NMOS tube, the source electrode of second NMOS tube and the leakage of the 4th NMOS tube
Pole connects, the power cathode end of the source electrode, the source electrode of the 4th NMOS tube of the 3rd NMOS tube as the first H bridges.
Further, the 2nd H bridges include the 5th NMOS tube, the 6th NMOS tube, the 7th NMOS tube and the 8th NMOS tube,
The drain electrode of 5th NMOS tube, the drain electrode of the 6th NMOS tube are connected as the power positive end of the 2nd H bridges with positive source, institute
The source electrode for stating the 5th NMOS tube is connected with the drain electrode of the 7th NMOS tube, the source electrode of the 6th NMOS tube and the leakage of the 8th NMOS tube
Pole connects, the power cathode end of the source electrode, the source electrode of the 8th NMOS tube of the 7th NMOS tube as the 2nd H bridges.
Further, the current potential comparison circuit includes potential comparator, the ungrounded end of first sampling resistor,
The ungrounded end of two sampling resistors and the input of potential comparator connect.
Further, when the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is equal, institute
Potential comparator output high level signal is stated, the first H bridges and the 2nd H bridges are applications in parallel；The power supply of the first H bridges is born
When the current potential at extreme and the 2nd H bridges power cathode end is unequal, the potential comparator output low level signal, described first
H bridges and the non-application in parallel of the 2nd H bridges.
Further, the current potential comparison circuit also includes single-chip microcomputer and testing result Tip element, and the current potential compares
The output end of device and the input of single-chip microcomputer connect, and the output end of the single-chip microcomputer connects with the input of testing result Tip element
Connect.
Further, the testing result Tip element is indicator lamp and/or voice-output unit and/or display unit.
Another technical scheme of the present invention is：A kind of detection method of H bridges, the detection applied to described H bridges
System, comprise the following steps,
Transient pulse is produced using pulse-generating circuit and inputs the power cathode end of the first H bridges；
When the transient pulse is input to the power cathode end of the first H bridges, the first H bridges are detected using current potential comparison circuit
Power cathode end it is whether consistent with the current potential at the power cathode end of the 2nd H bridges, to judge the connection of the first H bridges and the 2nd H bridges
State.
Further, when the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is equal, institute
Current potential comparison circuit output high level signal is stated, the first H bridges and the 2nd H bridges are applications in parallel；The power supply of the first H bridges
When the current potential at the power cathode end of negative pole end and the 2nd H bridges is unequal, the current potential comparison circuit exports low level signal, described
First H bridges and the non-application in parallel of the 2nd H bridges.
Further, the detection method of the H bridges also includes step：
Export judged result.
The beneficial effects of the invention are as follows：
The present invention a kind of detecting system and detection method of H bridges, the detecting system of H bridges include pulse-generating circuit, first
Sampling resistor, the second sampling resistor and current potential comparison circuit, circuit structure is simple and can realize the connection status inspection of two H bridges
Survey；After pulse-generating circuit produces the power cathode end of the H bridges of pulse input the first, the first H bridges are detected by current potential comparison circuit
Power cathode end it is whether consistent with the current potential at the power cathode end of the 2nd H bridges, to judge the connection of the first H bridges and the 2nd H bridges
State, the connection status inspection method of H bridges is efficient and convenient, and testing result is accurate.
Brief description of the drawings
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is an a kind of specific embodiment schematic diagram of the detecting system of H bridges of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
A kind of detecting system of H bridges, with reference to figure 1, Fig. 1 is an a kind of specific embodiment of the detecting system of H bridges of the present invention
Schematic diagram, the detecting systems of H bridges include the first H bridges, the 2nd H bridges, pulse-generating circuit (not shown), the first sampling resistor R1,
Second sampling resistor R2 and current potential comparison circuit, the first H bridges and the 2nd H bridges are relative concept, they be it is to be detected whether simultaneously
Two H bridges of connection, in the present embodiment, the first H bridges are A, and the 2nd H bridges are B, and the first H bridges A, the 2nd H bridges B are used to motor,
First H bridges, the 2nd H bridges and motor connection；The output end of pulse-generating circuit is connected with the first H bridges A power cathode end, is used for
Transient pulse is exported to the first H bridges A power cathode end；First H bridges A power cathode end is connect by the first sampling resistor R1
Ground, the 2nd H bridges B power cathode end are grounded by the second sampling resistor R2；First sampling resistor R1 ungrounded end (i.e. first
H bridges A power cathode end), the second sampling resistor R2 ungrounded end (i.e. the 2nd H bridges B power cathode end) is compared with current potential
The input connection of circuit；Current potential comparison circuit is used for when transient pulse is input to the first H bridges A power cathode end, detection
Whether the first H bridges A power cathode end is consistent with the current potential at the 2nd H bridges B power cathode end, to judge the first H bridges A and second
H bridges B connection status.Wherein, transient pulse be input to the 2nd H bridges B power cathode end it is also feasible, in the present embodiment, instantaneously
Pulse input is to the 2nd H bridges B power cathode end, and current potential comparison circuit detects the first H bridges A power cathode end (i.e. A1 points)
With the current potential at the 2nd H bridges B power cathode end (i.e. B1 points) to judge the first H bridges A and the 2nd H bridges B connection status.
In the present invention, a kind of detecting system of H bridges includes the first H bridges, the 2nd H bridges, pulse-generating circuit, the first sampling electricity
Resistance, the second sampling resistor and current potential comparison circuit；Pulse-generating circuit is used to export transient pulse to the power cathode of the first H bridges
End, current potential comparison circuit are used for when transient pulse is input to the power cathode end of the first H bridges, and the power supply of the first H bridges of detection is born
It is extreme whether consistent with the current potential at the power cathode end of the 2nd H bridges, to judge the connection status of the first H bridges and the 2nd H bridges, when the
When the current potential at the power cathode end of one H bridges and the power cathode end of the 2nd H bridges is equal, the output of current potential comparison circuit is high, the first H
Bridge and the 2nd H bridges are applications in parallel, and the motor that the first H bridges and the 2nd H bridges drive is same motor；The power supply of first H bridges is born
When the current potential at extreme and the 2nd H bridges power cathode end is unequal, the output of current potential comparison circuit is low, the first H bridges and the 2nd H bridges
Non- application in parallel, the present invention not only realizes to be detected to two the in parallel of H bridges, and the structure of detecting system is simple.
As the further improvement of technical scheme, with reference to figure 1, the first H bridges A includes the first NMOS tube Q1, the second NMOS tube
Q2, the 3rd NMOS tube Q3 and the 4th NMOS tube Q4, the first NMOS tube Q1 drain electrode, the second NMOS tube Q2 drain electrode are as the first H
Bridge A power positive end is connected with positive source Vm, and the first NMOS tube Q1 source electrode is connected with the 3rd NMOS tube Q3 drain electrode, the
Two NMOS tube Q2 source electrode is connected with the 4th NMOS tube Q4 drain electrode, the 3rd NMOS tube Q3 source electrode, the 4th NMOS tube Q4 source
Power cathode end of the pole as the first H bridges A；
2nd H bridges B includes the 5th NMOS tube Q5, the 6th NMOS tube Q6, the 7th NMOS tube Q7 and the 8th NMOS tube Q8, and the 5th
NMOS tube Q5 drain electrode, the 6th NMOS tube Q6 drain electrode are connected as the 2nd H bridges B power positive end with positive source Vm, the
Five NMOS tube Q5 source electrode is connected with the 7th NMOS tube Q7 drain electrode, the leakage of the 6th NMOS tube Q6 source electrode and the 8th NMOS tube Q8
Pole connects, the power cathode end of the 7th NMOS tube Q7 source electrode, the 8th NMOS tube Q8 source electrode as the 2nd H bridges B.
In addition, the break-make that a metal-oxide-semiconductor control circuit is used to control the NMOS tube of above-mentioned two H bridges is also set up, first
NMOS tube Q1 grid, the second NMOS tube Q2 grid, the 3rd NMOS tube Q3 grid, the 4th NMOS tube Q4 grid, the 5th
NMOS tube Q5 grid, the 6th NMOS tube Q6 grid, the 7th NMOS tube Q7 grid, the 8th NMOS tube Q8 grid and MOS
Pipe control circuit connects.
As the further improvement of technical scheme, above-mentioned NMOS tube can be replaced using triode.
As the further improvement of technical scheme, current potential comparison circuit includes potential comparator (i.e. voltage comparator) and used
In data processing and the single-chip microcomputer judged, the ungrounded end of the first sampling resistor, the ungrounded end of the second sampling resistor and current potential
The input connection of comparator, the output end of potential comparator and the input of single-chip microcomputer connect.Potential comparator is used for comparing
The power cathode end of first H bridges and the current potential at the power cathode end of the 2nd H bridges, the data that detection is obtained are sent into single-chip microcomputer and carried out
Processing.
As the further improvement of technical scheme, current potential comparison circuit also includes testing result Tip element, single-chip microcomputer
Output end is connected with the input of testing result Tip element.Testing result Tip element is indicator lamp and/or voice output list
Member and/or display unit, indicator lamp can be realized using LED, by controlling LED to show different colors to represent not
With testing result, for example, green light represents testing result to be application in parallel by, two H bridges, red light represent testing result as
Not by the non-application in parallel of two H bridges；And voice-output unit is then directly by testing result using audible devices such as loudspeakers
Speech play output is carried out, facilitates user directly to know testing result；Display unit is then directly will detection using display screen
As a result shown, such as display printed words " parallel connection " or " non-parallel connection "；It is it is in fact possible to single using three kinds of testing result promptings
Member one kind therein is used to realize testing result output or be combined with each other.
In the present invention, based on the detecting system of above-mentioned H bridges, a kind of detection method of H bridges is also provided, comprised the following steps,
Transient pulse is produced using pulse-generating circuit and inputs the power cathode end of the first H bridges；
When transient pulse is input to the power cathode end of the first H bridges, the electricity of the first H bridges is detected using current potential comparison circuit
Whether the current potential at the power cathode end of source negative pole end and the 2nd H bridges is consistent, to judge the connection status of the first H bridges and the 2nd H bridges.
In the present embodiment, with reference to figure 1, pulse-generating circuit produces transient pulse and inputs the 2nd H bridges B power cathode
End, i.e. the 8th NMOS tube Q8 source electrode；Current potential comparison circuit detects the power cathode end of the first H bridges and the power supply of the 2nd H bridges is born
Extreme current potential；When the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is equal, the first H bridges and second
H bridges are applications in parallel；When the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is unequal, the first H bridges
With the non-application in parallel of the 2nd H bridges.As shown in figure 1, in the present embodiment, current potential comparison circuit obtains the 4th NMOS tube Q4 source electrode
The current potential of (i.e. A1 points), the 7th NMOS tube Q7 source electrode (i.e. B1 points)；And judge four NMOS tube Q4 source electrode, the 7th NMOS tube Q7
Source electrode current potential it is whether equal, when the current potential of B1 points is equal with the current potential of A1 points, show the first H bridges and the 2nd H bridges for simultaneously
Connection application.
In fact, two H bridges of the first H bridges and the 2nd H bridges may be provided in the motor circuit of chip internal, the present invention
At the electric moment on chip, add a transient pulse in the B1 points of the 2nd H bridges, raise its current potential, it is then more electric by current potential
The current potential of the current potential of road detection B1 points and the respective point A1 of the first H bridges, when 2 current potentials are equal, two H bridges successes are in parallel；It is no
Then, two H bridges are not together in parallel, parallel connection failure；The connection status inspection method of the H bridges of the present invention is efficient and convenient, and detects
As a result it is accurate.
As the further improvement of technical scheme, the detection method of H bridges also includes step：
Export judged result.
First method, different colors can be shown by LED to export different judged results, i.e. detection knot
Fruit, for example, green light represents testing result as by the way that two H bridges are applications in parallel, and red light represents testing result as not by two
The non-application in parallel of individual H bridges；Second method, testing result is directly subjected to speech play output, facilitates user directly to know
Testing result；A kind of last method is that testing result directly carried out into display output, such as display printed words " parallel connection " or " non-simultaneously
Connection "；It is in fact possible to testing result is exported or combined to reality to realize using one kind in three kinds of methods
It is existing.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent variations on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of detecting system of H bridges, the detecting system of the H bridges includes the first H bridges and the 2nd H bridges, the first H bridges,
Two H bridges are used to motor, the first H bridges, the 2nd H bridges and the motor connection；Characterized in that,
It is more electric that the detecting system of the H bridges also includes pulse-generating circuit, the first sampling resistor, the second sampling resistor and current potential
Road；The output end of the pulse-generating circuit is connected with the power cathode end of the first H bridges, for exporting transient pulse to the first H
The power cathode end of bridge；The power cathode end of the first H bridges is grounded by the first sampling resistor, the power supply of the 2nd H bridges
Negative pole end is grounded by the second sampling resistor；The ungrounded end of first sampling resistor, the ungrounded end of the second sampling resistor
It is connected with the input of current potential comparison circuit；The current potential comparison circuit is used for when transient pulse is input to the power supply of the first H bridges
During negative pole end, whether with the current potential at the power cathode end of twoth H bridge consistent, to judge the if detecting the power cathode end of the first H bridges
The connection status of one H bridges and the 2nd H bridges.
2. the detecting system of H bridges according to claim 1, it is characterised in that the first H bridges include the first NMOS tube,
Second NMOS tube, the 3rd NMOS tube and the 4th NMOS tube, the drain electrode of first NMOS tube, the drain electrode of the second NMOS tube are as
The power positive end of one H bridges is connected with positive source, and the source electrode of first NMOS tube is connected with the drain electrode of the 3rd NMOS tube, institute
The source electrode for stating the second NMOS tube is connected with the drain electrode of the 4th NMOS tube, the source electrode of the 3rd NMOS tube, the source of the 4th NMOS tube
Power cathode end of the pole as the first H bridges.
3. the detecting system of H bridges according to claim 1, it is characterised in that the 2nd H bridges include the 5th NMOS tube,
6th NMOS tube, the 7th NMOS tube and the 8th NMOS tube, the drain electrode of the 5th NMOS tube, the drain electrode of the 6th NMOS tube are as
The power positive end of two H bridges is connected with positive source, and the source electrode of the 5th NMOS tube is connected with the drain electrode of the 7th NMOS tube, institute
The source electrode for stating the 6th NMOS tube is connected with the drain electrode of the 8th NMOS tube, the source electrode of the 7th NMOS tube, the source of the 8th NMOS tube
Power cathode end of the pole as the 2nd H bridges.
4. the detecting system of the H bridges according to any one of claims 1 to 3, it is characterised in that the current potential comparison circuit bag
Include potential comparator, the ungrounded end of first sampling resistor, the ungrounded end of the second sampling resistor and potential comparator
Input connects.
5. the detecting system of H bridges according to claim 4, it is characterised in that the current potential comparison circuit also includes monolithic
Machine and testing result Tip element, the output end of the potential comparator and the input of single-chip microcomputer connect, the single-chip microcomputer
Output end is connected with the input of testing result Tip element.
6. the detecting system of H bridges according to claim 5, it is characterised in that the testing result Tip element is instruction
Lamp and/or voice-output unit and/or display unit.
7. the detecting system of H bridges according to claim 4, it is characterised in that the power cathode end of the first H bridges and
When the current potential at the power cathode end of two H bridges is equal, the potential comparator exports high level signal, the first H bridges and the 2nd H
Bridge is application in parallel；It is described when the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is unequal
Potential comparator exports low level signal, the non-application in parallel of the first H bridges and the 2nd H bridges.
A kind of 8. detection method of H bridges, it is characterised in that the detection system applied to the H bridges described in any one of claim 1 to 7
System, comprises the following steps,
Transient pulse is produced using pulse-generating circuit and inputs the power cathode end of the first H bridges；
When the transient pulse is input to the power cathode end of the first H bridges, the electricity of the first H bridges is detected using current potential comparison circuit
Whether the current potential at the power cathode end of source negative pole end and the 2nd H bridges is consistent, to judge the connection status of the first H bridges and the 2nd H bridges.
9. the detection method of H bridges according to claim 8, it is characterised in that the power cathode end of the first H bridges and
When the current potential at the power cathode end of two H bridges is equal, the current potential comparison circuit exports high level signal, the first H bridges and the
Two H bridges are applications in parallel；When the current potential at the power cathode end of the first H bridges and the power cathode end of the 2nd H bridges is unequal, institute
State current potential comparison circuit output low level signal, the non-application in parallel of the first H bridges and the 2nd H bridges.
10. the detection method of H bridges according to claim 8 or claim 9, it is characterised in that the detection method of the H bridges also includes
Step：
Export judged result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180446.7A CN107861019B (en) | 2017-11-23 | 2017-11-23 | H-bridge detection system and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711180446.7A CN107861019B (en) | 2017-11-23 | 2017-11-23 | H-bridge detection system and detection method |
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| CN107861019B CN107861019B (en) | 2023-09-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596875A (en) * | 2018-12-04 | 2019-04-09 | 国网湖北省电力有限公司电力科学研究院 | A kind of detection method and device for H bridge power unit output voltage waveforms exception |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791358A (en) * | 1985-09-11 | 1988-12-13 | U.S. Philips Corporation | Integrated circuits, carriers therefor and testing apparatus and method for the foregoing |
| US5070292A (en) * | 1989-11-13 | 1991-12-03 | Performance Controls, Inc. | Pulse-width modulated circuit for driving a load |
| US5428522A (en) * | 1992-08-17 | 1995-06-27 | Kaman Electromagnetics Corporation | Four quadrant unipolar pulse width modulated inverter |
| US5760591A (en) * | 1992-06-18 | 1998-06-02 | Shin-Ichiro Matsuda | Method of and apparatus for determining an electric wiring state |
| JP2009005460A (en) * | 2007-06-20 | 2009-01-08 | Tokai Rika Co Ltd | Load drive control circuit |
| US20140204643A1 (en) * | 2013-01-18 | 2014-07-24 | General Electric Company | Control scheme for current balancing between parallel bridge circuits |
| CN104467506A (en) * | 2014-12-11 | 2015-03-25 | 山东大学 | Efficient H-bridge photovoltaic inverter based on voltage and current polarity detection |
| CN105703651A (en) * | 2016-03-11 | 2016-06-22 | 中国计量学院 | Grid-connected inverter parallel system and control method |
| DE102016202990B3 (en) * | 2016-02-25 | 2017-07-13 | Conti Temic Microelectronic Gmbh | Method and circuit for checking the connection state of phase current lines |
| CN207488418U (en) * | 2017-11-23 | 2018-06-12 | 深圳市巴丁微电子有限公司 | A kind of detecting system of H bridges |
| US20200041557A1 (en) * | 2015-06-15 | 2020-02-06 | Continental Automotive France | Device for detecting a short circuit of an h bridge |
-
2017
- 2017-11-23 CN CN201711180446.7A patent/CN107861019B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791358A (en) * | 1985-09-11 | 1988-12-13 | U.S. Philips Corporation | Integrated circuits, carriers therefor and testing apparatus and method for the foregoing |
| US5070292A (en) * | 1989-11-13 | 1991-12-03 | Performance Controls, Inc. | Pulse-width modulated circuit for driving a load |
| US5760591A (en) * | 1992-06-18 | 1998-06-02 | Shin-Ichiro Matsuda | Method of and apparatus for determining an electric wiring state |
| US5428522A (en) * | 1992-08-17 | 1995-06-27 | Kaman Electromagnetics Corporation | Four quadrant unipolar pulse width modulated inverter |
| JP2009005460A (en) * | 2007-06-20 | 2009-01-08 | Tokai Rika Co Ltd | Load drive control circuit |
| US20140204643A1 (en) * | 2013-01-18 | 2014-07-24 | General Electric Company | Control scheme for current balancing between parallel bridge circuits |
| CN104467506A (en) * | 2014-12-11 | 2015-03-25 | 山东大学 | Efficient H-bridge photovoltaic inverter based on voltage and current polarity detection |
| US20200041557A1 (en) * | 2015-06-15 | 2020-02-06 | Continental Automotive France | Device for detecting a short circuit of an h bridge |
| DE102016202990B3 (en) * | 2016-02-25 | 2017-07-13 | Conti Temic Microelectronic Gmbh | Method and circuit for checking the connection state of phase current lines |
| CN105703651A (en) * | 2016-03-11 | 2016-06-22 | 中国计量学院 | Grid-connected inverter parallel system and control method |
| CN207488418U (en) * | 2017-11-23 | 2018-06-12 | 深圳市巴丁微电子有限公司 | A kind of detecting system of H bridges |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596875A (en) * | 2018-12-04 | 2019-04-09 | 国网湖北省电力有限公司电力科学研究院 | A kind of detection method and device for H bridge power unit output voltage waveforms exception |
| CN109596875B (en) * | 2018-12-04 | 2023-08-18 | 国网湖北省电力有限公司电力科学研究院 | Method and device for detecting waveform abnormality of output voltage of H-bridge power unit |
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| Publication number | Publication date |
|---|---|
| CN107861019B (en) | 2023-09-05 |
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