CN108631554A - A kind of circuit of automatic adjusument output driving ability - Google Patents
A kind of circuit of automatic adjusument output driving ability Download PDFInfo
- Publication number
- CN108631554A CN108631554A CN201810264275.4A CN201810264275A CN108631554A CN 108631554 A CN108631554 A CN 108631554A CN 201810264275 A CN201810264275 A CN 201810264275A CN 108631554 A CN108631554 A CN 108631554A
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- Prior art keywords
- gate
- circuit
- charging
- discharge
- adjustable
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Classifications
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- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of circuits of automatic adjusument output driving ability, including adjustable charging current/resistance equivalent circuit, adjustable discharge current/resistance equivalent circuit, driving output charging and discharging velocity checking circuits, charging control circuit and charge/discharge control circuit；During GATE is connected, charging control circuit conducting, charge/discharge control circuit shutdown, adjustable charging current/resistance equivalent circuit is charged and discharged the charging ramp of velocity checking circuits detection GATE to GATE chargings, driving output, and exports CTRP；During GATE is turned off, charging control circuit shutdown, charge/discharge control circuit is connected, and adjustable discharge current/resistance equivalent circuit discharges to GATE, detects the electric discharge slope of GATE, and export CTRN.The present invention solves the problems, such as that driving circuit cannot change output driving ability automatically with variation of the power with tube core and circuit application plate parasitic parameter.
Description
Technical field
The present invention relates to switch power source driving circuit, especially a kind of circuit of automatic adjusument output driving ability.
Background technology
With the rapid development of switch power technology, the requirement to related switch power supply product is also higher and higher.Such as：It wants
Ask chip integration higher, chip reliability are stronger, chip it is compatible it is wider, chip operation performance is more preferable and widely answers
With range etc..
Switch power source driving circuit design at present is one for chip operation efficiency and conduct radiation compatibility and needs to roll over
It is middle to consider the problems of：It is existing for the working efficiency and conduct radiation compatibility issue present in product of the built-in power with tube core
There are actuation techniques generally driving capability to be used to match the one-to-one method of tube core with power, main disadvantage is that for difference
Power with tube core require different editions driving capability, to cause chip version excessive, it has not been convenient to production and stock；For
Working efficiency and conduct radiation compatibility issue, existing actuation techniques present in product of the external power with tube core generally use
Increase different size of resistance between application peripheral driver and power are with tube core.Since traditional actuation techniques cannot be with work(
Variation of the rate with tube core and circuit application plate parasitic parameter and change output driving ability automatically, therefore significantly limit core
The compatibility and application range of piece.
Invention content
The goal of the invention of the present invention is：In view of the above problems, a kind of automatic adjusument output driving energy is provided
The circuit of power, the circuit can drive according to different power with tube core and the automatic adjustment output of circuit application plate parasitic parameter
Kinetic force.
The technical solution adopted by the present invention is as follows：
A kind of circuit of automatic adjusument output driving ability of the present invention, including it is adjustable charging current/resistance equivalent circuit, adjustable
Discharge current/resistance equivalent circuit, driving output are charged and discharged velocity checking circuits, charging control circuit and control of discharge electricity
Road；
The charging control circuit, for during drive output signal GATE conductings, conducting to carry out charge control；Driving output
During signal GATE shutdowns, shutdown；
The charge/discharge control circuit, for during drive output signal GATE conductings, turning off；Drive output signal GATE shutdowns
Period, conducting carry out control of discharge；
Adjustable charging current/the resistance equivalent circuit, for during drive output signal GATE conductings, charging to GATE；
Adjustable discharge current/the resistance equivalent circuit, for during drive output signal GATE shutdowns, discharging GATE；
The driving output is charged and discharged velocity checking circuits, for detecting adjustable charging current/resistance equivalent circuit pair
The charging ramp of GATE, and adjust the charging rate of GATE；Detect electric discharge of the adjustable discharge current/resistance equivalent circuit to GATE
Slope, and adjust the velocity of discharge of GATE.
Preferably, the driving output is charged and discharged velocity checking circuits output control signal CTRP and CTRN.
Preferably, the control signal CTRP controls adjustable charging current/equivalent resistance according to the charging ramp of GATE
Circuit adjusts drive output signal GATE charging currents.
Preferably, the control signal CTRN controls adjustable discharge current/equivalent resistance according to the electric discharge slope of GATE
Circuit adjusts drive output signal GATE discharge currents.
Preferably, the tune of the adjustable charging current/resistance equivalent circuit and adjustable discharge current/resistance equivalent circuit
The mode of section driving output current includes current regulation or resistance adjustment.
Preferably, the driving output is charged and discharged velocity checking circuits, comparison voltage is detected using the set time
The method of time difference is compared in difference or fixed voltage detection, to detect the charging ramp and electric discharge slope of drive output signal GATE.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：With conventional ADS driving technology phase
Than the scope of application of the present invention is wider, improves Switching Power Supply working efficiency and conduct radiation compatibility, and further simplify drive
It is dynamic to apply plate circuit design.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is a kind of electrical block diagram of automatic adjusument output driving ability of the present invention.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
This specification（Including any accessory claim, abstract）Disclosed in any feature, unless specifically stated,
It is replaced by other equivalent or with similar purpose alternative features.That is, unless specifically stated, each feature is a series of
An example in equivalent or similar characteristics.
Such as Fig. 1, the present invention a kind of circuit of automatic adjusument output driving ability, including adjustable charging current/resistance etc.
Imitate circuit 1, adjustable discharge current/resistance equivalent circuit 2, driving output charging and discharging velocity checking circuits 3, charge control electricity
Road 4 and charge/discharge control circuit 5；
During logical signal PWM control drive output signal GATE conductings, charging control circuit 4 is connected, charge/discharge control circuit 5
Shutdown charges to GATE by adjustable charging current/resistance equivalent circuit 1, and driving output is charged and discharged velocity checking circuits
The charging ramp of 3 detection drive output signal GATE, and export control signal CTRP；
Driving output be charged and discharged velocity checking circuits 3, both may be used the set time detection comparison voltage it is poor, can also adopt
The method for comparing the time difference with fixed voltage detection, to detect the charging ramp of drive output signal GATE；When using fixed
Between detection comparison voltage difference method when, if voltage difference is less than the voltage set by detection circuit within the set time,
It is determined as that charging rate is slower, vice versa；When the method for comparing the time difference using fixed voltage detection, if in identical electricity
Under pressure differential the time used it is shorter illustrate that charging rate is faster, vice versa.
If the charging rate of drive output signal GATE is too fast, controls signal CTRP and control adjustable charging current/electricity
Equivalent circuit 1 is hindered, reduces drive output signal GATE charging current abilities, to reduce the charging ramp of output signal GATE；
If the charging rate of drive output signal GATE is excessively slow, controls signal CTRP and control adjustable charging current/resistance etc.
Circuit 1 is imitated, increases drive output signal GATE charging current abilities, to increase the charging ramp of output signal GATE.
During logical signal PWM control drive output signal GATE shutdowns, charging control circuit 4 turns off, control of discharge
Circuit 5 is connected, and is discharged GATE by adjustable discharge current/resistance equivalent circuit 2, driving output is charged and discharged speed inspection
Slowdown monitoring circuit 3 detects the electric discharge slope of drive output signal GATE, and exports control signal CTRN；
Driving output be charged and discharged velocity checking circuits 3, both may be used the set time detection comparison voltage it is poor, can also consolidate
Constant voltage detects the method for comparing the time difference, to detect the electric discharge slope of drive output signal GATE；
If the velocity of discharge of drive output signal GATE is too fast, controls signal CTRN and control adjustable discharge current/resistance etc.
Circuit 2 is imitated, reduces drive output signal GATE discharge current abilities, to reduce the electric discharge slope of output signal GATE；
If the velocity of discharge of drive output signal GATE is excessively slow, controls signal CTRN and control adjustable discharge current/resistance etc.
Circuit 2 is imitated, increases drive output signal GATE discharge current abilities, to increase the electric discharge slope of output signal GATE.
Adjustable charging current/resistance equivalent circuit 1 and adjustable discharge current/resistance equivalent circuit 2, both can be with the shape of electric current
Formula is adjusted, can also the form of resistance adjust, two kinds of regulative modes can reach the effect of automatic adjusument output driving ability
Fruit.
The circuit of automatic adjusument output driving ability of the present invention can be answered according to different power with tube core and circuit
It is charged and discharged ability with plate parasitic parameter automatic adjustment output driving.
The invention is not limited in specific implementation modes above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (6)
1. a kind of circuit of automatic adjusument output driving ability, it is characterised in that：Including adjustable charging current/equivalent resistance electricity
Road（1）, adjustable discharge current/resistance equivalent circuit（2）, driving output be charged and discharged velocity checking circuits（3）, charge control
Circuit（4）And charge/discharge control circuit（5）；
The charging control circuit（4）, for during drive output signal GATE conductings, conducting to carry out charge control；It is driving
During dynamic output signal GATE shutdowns, shutdown；
The charge/discharge control circuit（5）, for during drive output signal GATE conductings, turning off；In drive output signal
During GATE is turned off, conducting carries out control of discharge；
Adjustable charging current/the resistance equivalent circuit（1）, for during drive output signal GATE conductings, being filled to GATE
Electricity；
Adjustable discharge current/the resistance equivalent circuit（2）, for during drive output signal GATE shutdowns, being put to GATE
Electricity；
The driving output is charged and discharged velocity checking circuits（3）, for detecting adjustable charging current/resistance equivalent circuit
（1）To the charging ramp of GATE, and adjust the charging rate of GATE；Detect adjustable discharge current/resistance equivalent circuit（2）It is right
The electric discharge slope of GATE, and adjust the velocity of discharge of GATE.
2. the circuit of automatic adjusument output driving ability as described in claim 1, it is characterised in that：The driving output is filled
Electricity and velocity of discharge detection circuit（3）Output control signal CTRP and CTRN.
3. the circuit of automatic adjusument output driving ability as claimed in claim 2, it is characterised in that：The control signal
CTRP controls adjustable charging current/resistance equivalent circuit according to the charging ramp of GATE（1）, adjust drive output signal GATE
Charging current.
4. the circuit of automatic adjusument output driving ability as claimed in claim 2, it is characterised in that：The control signal
CTRN controls adjustable discharge current/resistance equivalent circuit according to the electric discharge slope of GATE（2）, adjust drive output signal GATE
Discharge current.
5. the circuit of automatic adjusument output driving ability as described in claim 1, it is characterised in that：The adjustable charging electricity
Stream/resistance equivalent circuit（1）With adjustable discharge current/resistance equivalent circuit（2）The mode for adjusting driving output current includes electricity
Stream adjusts or resistance adjustment.
6. the circuit of automatic adjusument output driving ability as described in claim 1, it is characterised in that：The driving output is filled
Electricity and velocity of discharge detection circuit（3）, the time difference is compared using set time detection comparison voltage difference or fixed voltage detection
Method, to detect the charging ramp and electric discharge slope of drive output signal GATE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264275.4A CN108631554B (en) | 2018-03-28 | 2018-03-28 | A kind of circuit of automatic adjusument output driving ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264275.4A CN108631554B (en) | 2018-03-28 | 2018-03-28 | A kind of circuit of automatic adjusument output driving ability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108631554A true CN108631554A (en) | 2018-10-09 |
| CN108631554B CN108631554B (en) | 2019-11-15 |
Family
ID=63696570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264275.4A Active CN108631554B (en) | 2018-03-28 | 2018-03-28 | A kind of circuit of automatic adjusument output driving ability |
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| Country | Link |
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| CN (1) | CN108631554B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116795452A (en) * | 2023-07-20 | 2023-09-22 | 龙芯中科(北京)信息技术有限公司 | Method, device and equipment for determining compatibility of driving program |
| CN114594817B (en) * | 2020-12-07 | 2023-10-27 | 中移物联网有限公司 | Circuit and method for adjusting driving capability of input/output chip |
Citations (6)
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| CN1518222A (en) * | 2003-01-21 | 2004-08-04 | ��֥��������ҵϵͳ��ʽ���� | Grid drive circuit |
| CN102237781A (en) * | 2010-05-06 | 2011-11-09 | Ls产电株式会社 | Switching gate driver |
| CN105099163A (en) * | 2014-05-07 | 2015-11-25 | 中航（重庆）微电子有限公司 | Circuit and method for improving EMI and switching noises |
| CN106505839A (en) * | 2016-11-15 | 2017-03-15 | 华中科技大学 | A kind of IGBT device drive circuit and method for reducing closing loss |
| US20180034459A1 (en) * | 2016-07-26 | 2018-02-01 | Hyundai Autron Co., Ltd. | Isolated gate driver and a power device driving system including the same |
| CN107809171A (en) * | 2016-09-09 | 2018-03-16 | 苏州力生美半导体有限公司 | The driving method and drive circuit of Switching Power Supply and its power switch pipe |
-
2018
- 2018-03-28 CN CN201810264275.4A patent/CN108631554B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1518222A (en) * | 2003-01-21 | 2004-08-04 | ��֥��������ҵϵͳ��ʽ���� | Grid drive circuit |
| CN102237781A (en) * | 2010-05-06 | 2011-11-09 | Ls产电株式会社 | Switching gate driver |
| CN105099163A (en) * | 2014-05-07 | 2015-11-25 | 中航（重庆）微电子有限公司 | Circuit and method for improving EMI and switching noises |
| US20180034459A1 (en) * | 2016-07-26 | 2018-02-01 | Hyundai Autron Co., Ltd. | Isolated gate driver and a power device driving system including the same |
| CN107809171A (en) * | 2016-09-09 | 2018-03-16 | 苏州力生美半导体有限公司 | The driving method and drive circuit of Switching Power Supply and its power switch pipe |
| CN106505839A (en) * | 2016-11-15 | 2017-03-15 | 华中科技大学 | A kind of IGBT device drive circuit and method for reducing closing loss |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594817B (en) * | 2020-12-07 | 2023-10-27 | 中移物联网有限公司 | Circuit and method for adjusting driving capability of input/output chip |
| CN116795452A (en) * | 2023-07-20 | 2023-09-22 | 龙芯中科(北京)信息技术有限公司 | Method, device and equipment for determining compatibility of driving program |
| CN116795452B (en) * | 2023-07-20 | 2024-04-02 | 龙芯中科(北京)信息技术有限公司 | Method, device and equipment for determining compatibility of driving program |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108631554B (en) | 2019-11-15 |
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