CN108390669A - With PHM functions can parallel configuration intelligent high side power switch - Google Patents
With PHM functions can parallel configuration intelligent high side power switch Download PDFInfo
- Publication number
- CN108390669A CN108390669A CN201611139666.0A CN201611139666A CN108390669A CN 108390669 A CN108390669 A CN 108390669A CN 201611139666 A CN201611139666 A CN 201611139666A CN 108390669 A CN108390669 A CN 108390669A
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- China
- Prior art keywords
- circuit
- control
- phm
- register
- high side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
Abstract
The invention belongs to IC design field, be related to it is a kind of with PHM functions can the intelligent high side power switch of parallel configuration include：P-channel MOSFET further includes voltage source, the charge pump of P-channel MOSFET, stream is driven to detect and control circuit, operating mode control/malfunction register and control logic circuit；Above-mentioned component integrates on the integrated.The features of the present invention：Complete integrated, powerful, small, the small power consumption of design, defencive function are perfect.Realize online configurable reliability and the safety that can greatly improve computer product and system of load.The present invention by the means of integrated circuit, by high side power switching technique, overcurrent-overvoltage overheat protective technology, serial communication technology, the equal Flow Technique of load be implemented in combination with PHM functions can the intelligent high side power of parallel configuration switch.Realize the perfect protection of power device, various fault modes and acquisition of information provide information for PHM, can configure online for different loads.
Description
Technical field
The invention belongs to IC design field, be related to it is a kind of with PHM functions can parallel configuration intelligent flash
Power switch.
Background technology
Under machine missile-borne environment, there are many load such as motor, valve equipment to need to control it by high side power switch
Opening and closing, the mode of mainstream is to select the power device of relevant parameter according to load, controlled by computer at present
P-channel MOSFET, relay or contactor realize that the function of tonic chord, auxiliary overvoltage and overcurrent protection circuit are protected, but this
The component that realization method needs is more, occupies that plate suqare is big, and reliability is not high, cannot achieve overheating protection, when failure, control
Computer processed can not also obtain fault mode, and it is used in parallel etc. to cannot achieve can configure for power-ourput device.
Invention content
The object of the present invention is to provide it is a kind of with PHM functions can parallel configuration intelligent high side power switch, can root
According to discrete magnitude output power option and installment to be treated in system, the driving of machine missile-borne computer and intelligent remote interface are realized
The online configurable Parallel opertation of unit interface driving.
Further, it realizes overvoltage protection, overcurrent protection, load open circuit detection, overheating protection, ground short circuit protection, obtain
Fault mode.
The present invention is the means by integrated circuit, by power conversion technology, high side power export technique, overcurrent-overvoltage mistake
Heat protection technology, serial communication technology, the equal Flow Technique of load combine realization with PHM functions can parallel configuration intelligence
It can high side power switch.
It is a kind of with PHM functions can parallel configuration intelligent high side power switch, including：Voltage source, P-channel
MOSFET, the charge pump of driving P-channel MOSFET, stream detect and control circuit, operating mode control/malfunction register
And control logic circuit；
External power supply Vbb is transformed to the working power V of integrated circuit by the voltage sourcelogic；
The P-channel MOSFET is the switching tube of output, realization can be required to be switched on or off according to control；
The charge pump is the driving source of P-channel switch mosfet pipe, for providing required driving electricity for switching tube
Pressure；
Operating mode control/malfunction the register, the guarantor for operating mode selection and various malfunctions
Deposit record；
The stream detects and controls circuit, for detect P-channel switch mosfet pipe actual loading electric current and
Flow control；
The control logic circuit is detected and controlled for controlling charge pump with the switch of driving switch pipe according to stream
The operating current size of testing result and operating mode the control P-channel switch mosfet pipe of circuit；
Above-mentioned component integrates on the integrated.
Operating mode refer to the present invention have PHM functions can the intelligent high side power of parallel configuration switch independent work
Make, or work with another high side power switch in parallel of the present invention, the quantity of parallel circuit is 2,3,4 ....
Further, further include overvoltage crowbar, current foldback circuit, load open-circuit detection circuit, overheating protection electricity
Road, ground short circuit protect circuit；
It within the overvoltage crowbar Clamping voltages to setting value, prevents external voltage excessively high, burns or breakdown potential
Road；
The current foldback circuit provides status information to control logic circuit when there is overcurrent, is closed with controlling
Disconnected P-channel switch mosfet pipe, while in a register by fault message record, for reading and analyzing；
The load open-circuit detection circuit realizes the detection of load open circuit state, while fault message is recorded in event
Hinder in status register, for reading and analyzing；
The overheating protection circuit, the temperature inside real-time measuring circuit put forward status information when being more than set temperature
Control logic circuit is supplied, P-channel switch mosfet pipe is turned off with control, while fault message is recorded into deposit of nonserviceabling
In device, for reading and analyzing；
The ground short circuit detection, realizes that the detection of shorted to earth state is provided status information to when shorted to earth
Control logic circuit turns off P-channel switch mosfet pipe with control, while fault message is recorded register of nonserviceabling
In, for reading and analyzing；
The control logic circuit, for being protected to the control of circuit under the various malfunctions of foregoing circuit；
Fault message presentation mode in operating mode control/malfunction register, first, passing through discrete magnitude interface ST
Output, another kind is exported by spi bus.
The had feature of the present invention：
1, the present invention propose it is a kind of have improve defencive function and PHM functions can parallel configuration intelligent flash work(
Rate switching technique, the design is completely integrated, powerful, small, small power consumption, and defencive function is perfect.
2, the present invention is to realize load configurable key technology online, be realize computer automation power control and
The key of remote interface units intelligence power control.
3, the present invention can greatly improve reliability and the safety of machine missile-borne computer product and system.
4, it can realize that the complete preservation of power device, various fault modes and acquisition of information provide effective letter for PHM
Breath, can configure for different power terminations, technology hand is provided for adaptive interface and intelligent remote interface unit online
Section and physical basis.
Description of the drawings：
Fig. 1 is the schematic diagram that operating mode of the present invention is the work of two circuit in parallel
Specific implementation mode
It is a kind of with PHM functions can parallel configuration intelligent high side power switch, including：Voltage source, P-channel
MOSFET, the charge pump of driving P-channel MOSFET, stream detect and control circuit, operating mode control/malfunction register
And control logic circuit；
External power supply Vbb is transformed to the working power V of entire integrated circuit by the voltage sourcelogic；
The P-channel MOSFET is the switching tube of power output, realization can be required to be switched on or off according to control；
The charge pump is the driving source of P-channel switch mosfet pipe, for providing required driving electricity for switching tube
Pressure；
Operating mode control/malfunction the register, the guarantor for operating mode selection and various malfunctions
Deposit record；
The stream detects and controls circuit, for detect P-channel switch mosfet pipe actual loading electric current and
Flow control；
The control logic circuit is detected and controlled for controlling charge pump with the switch of driving switch pipe according to stream
The operating current size of testing result and operating mode the control P-channel switch mosfet pipe of circuit；
Above-mentioned component integrates on the integrated.
Operating mode refer to the present invention have PHM functions can the intelligent high side power of parallel configuration switch independent work
Make, or work with another high side power switch in parallel of the present invention, the quantity of parallel circuit is 2,3,4 ....
Further, further include overvoltage crowbar, current foldback circuit, load open-circuit detection circuit, overheating protection electricity
Road, ground short circuit detection circuit；
It within the overvoltage crowbar Clamping voltages to setting value, prevents external voltage excessively high, burns or breakdown potential
Road；
The current foldback circuit provides status information to control logic circuit when there is overcurrent, is closed with controlling
Disconnected P-channel switch mosfet pipe, while in a register by fault message record, for reading and analyzing；
The load open-circuit detection circuit realizes the detection of load open circuit state, while fault message is recorded in event
Hinder in status register, for reading and analyzing；
The overheating protection circuit, the temperature inside real-time measuring circuit put forward status information when being more than set temperature
Control logic circuit is supplied, P-channel switch mosfet pipe is turned off with control, while fault message is recorded into deposit of nonserviceabling
In device, for reading and analyzing；
The ground short circuit detection, realizes that the detection of shorted to earth state is provided status information to when shorted to earth
Control logic circuit turns off P-channel switch mosfet pipe with control, while fault message is recorded register of nonserviceabling
In, for reading and analyzing；
The control logic circuit, for being protected to the control of circuit under the various malfunctions of foregoing circuit；
Fault message presentation mode in operating mode control/malfunction register, first, passing through discrete magnitude interface ST
Output, another kind is exported by spi bus.
The course of work is as follows：
Circuit enters initial reset pattern after the power is turned on, and register restores default value, and circuit defaults forbid exporting.It powers at this time
Voltage is compared by the threshold value with setting judges whether that input is normal, is such as less than the minimum voltage of prescribed threshold, circuit is then
It is constantly in reset state, circuit is forbidden exporting, if supply voltage is more than the threshold value, circuit power supply is normal.Circuit is logical
It crosses host interface to be communicated with host computer, host computer carries out the operating mode control register in circuit by universal serial bus
Configuration.Circuit carries out autonomous test pattern, each function module self-test (over-current detection, over-pressed detection, overheating detection, load in circuit
Open circuit detection, ground short circuit detection), testing result is stored in malfunction register, while to malfunction interface set.If from
Testing result is normal, then circuit enters normal work control driving output mode.If self-test result is faulty, P-channel
MOSFET forbids exporting, and then circuit enters malfunction elimination tupe, the malfunction word of read failure status register, root
Analysis investigation is carried out according to pre-defined malfunction.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (3)
1. it is a kind of with PHM functions can parallel configuration intelligent high side power switch, including：P-channel MOSFET, feature exist
In further including that voltage source, the charge pump of driving P-channel MOSFET, stream detect and control circuit, operating mode control/failure
Status register and control logic circuit；
External power supply Vbb is transformed to the working power V of integrated circuit by the voltage sourcelogic；
The P-channel MOSFET is the switching tube of output, realization can be required to be switched on or off according to control；
The charge pump is the driving source of P-channel switch mosfet pipe, for providing required driving voltage for switching tube；
Operating mode control/malfunction the register is remembered for operating mode selection and the preservation of various malfunctions
Record；
The stream detects and controls circuit, the actual loading electric current for detecting P-channel switch mosfet pipe and equal flow control
System；
The control logic circuit is detected for controlling charge pump to drive the switch of P-channel switch mosfet pipe according to stream
The operating current size of P-channel switch mosfet pipe is controlled with the testing result and operating mode of control circuit；
Above-mentioned component integrates on the integrated.
2. it is according to claim 1 with PHM functions can parallel configuration intelligent high side power switch, feature exists
In, further include overvoltage crowbar, current foldback circuit, load open-circuit detection circuit, overheating protection circuit, ground short circuit protection electricity
Road；
It within the overvoltage crowbar Clamping voltages to setting value, prevents external voltage excessively high, burns or puncture circuit；
The current foldback circuit provides status information to control logic circuit when there is overcurrent, to control shutdown P
Channel mosfet switching tube, while in a register by fault message record, for reading and analyzing；
The load open-circuit detection circuit realizes the detection of load open circuit state, while fault message is recorded in failure shape
In state register, for reading and analyzing；
The overheating protection circuit, the temperature inside real-time measuring circuit provide status information to when being more than set temperature
Control logic circuit turns off P-channel switch mosfet pipe with control, while fault message is recorded register of nonserviceabling
In, for reading and analyzing；
The ground short circuit protection, realizes that the detection of shorted to earth state provides status information to control when shorted to earth
Logic circuit turns off P-channel switch mosfet pipe with control, while fault message being recorded in register of nonserviceabling, and supplies
It reads and analyzes；
The control logic circuit, for being protected to the control of circuit under the various malfunctions of foregoing circuit.
3. it is according to claim 1 or 2 with PHM functions can parallel configuration intelligent high side power switch, feature
It is, the fault message presentation mode in operating mode control/malfunction register, first, defeated by discrete magnitude interface ST
Go out, another kind is exported by spi bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139666.0A CN108390669A (en) | 2016-12-12 | 2016-12-12 | With PHM functions can parallel configuration intelligent high side power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139666.0A CN108390669A (en) | 2016-12-12 | 2016-12-12 | With PHM functions can parallel configuration intelligent high side power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108390669A true CN108390669A (en) | 2018-08-10 |
Family
ID=63075836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611139666.0A Pending CN108390669A (en) | 2016-12-12 | 2016-12-12 | With PHM functions can parallel configuration intelligent high side power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108390669A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1988633A1 (en) * | 2007-05-03 | 2008-11-05 | Honeywell International Inc. | Integrated gate driver for controlling and protecting power modules |
| US7977821B2 (en) * | 2007-05-10 | 2011-07-12 | Honeywell International Inc. | High power density switch module with improved thermal management and packaging |
| CN203117691U (en) * | 2013-01-21 | 2013-08-07 | 中国人民解放军63963部队 | An intelligent power module and a high-voltage power switch |
| CN204258628U (en) * | 2014-11-14 | 2015-04-08 | 深圳市高健实业股份有限公司 | A kind of booster circuit of the efficient high power be applied in electronic cigarette |
| CN105281572A (en) * | 2014-07-24 | 2016-01-27 | 英飞凌科技股份有限公司 | High side switch with current limit feedback |
-
2016
- 2016-12-12 CN CN201611139666.0A patent/CN108390669A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1988633A1 (en) * | 2007-05-03 | 2008-11-05 | Honeywell International Inc. | Integrated gate driver for controlling and protecting power modules |
| US7977821B2 (en) * | 2007-05-10 | 2011-07-12 | Honeywell International Inc. | High power density switch module with improved thermal management and packaging |
| CN203117691U (en) * | 2013-01-21 | 2013-08-07 | 中国人民解放军63963部队 | An intelligent power module and a high-voltage power switch |
| CN105281572A (en) * | 2014-07-24 | 2016-01-27 | 英飞凌科技股份有限公司 | High side switch with current limit feedback |
| CN204258628U (en) * | 2014-11-14 | 2015-04-08 | 深圳市高健实业股份有限公司 | A kind of booster circuit of the efficient high power be applied in electronic cigarette |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180810 |
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| RJ01 | Rejection of invention patent application after publication |