CN203014666U - Quick start gate driving device and control module thereof - Google Patents
Quick start gate driving device and control module thereof Download PDFInfo
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- CN203014666U CN203014666U CN2012207472743U CN201220747274U CN203014666U CN 203014666 U CN203014666 U CN 203014666U CN 2012207472743 U CN2012207472743 U CN 2012207472743U CN 201220747274 U CN201220747274 U CN 201220747274U CN 203014666 U CN203014666 U CN 203014666U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides a quick start gate driving device and a control module thereof. The gate driving device comprises: a control circuit which has a power supply port and is grounded via a first capacitor, wherein the control circuit generates a switch switching signal according to a voltage detection result of the power supply port; a transformer, wherein a dotted terminal of a primary winding of the transformer receives an input signal, an undotted terminal of an auxiliary winding of the transformer is connected to the power supply port through a first diode, a dotted terminal of the auxiliary winding is grounded, wherein a positive electrode of the first diode is connected with the undotted terminal of the auxiliary winding, a negative electrode of the first diode is connected with the power supply port; a switching tube of which an input terminal is connected with an undotted terminal of the primary winding; and a switching circuit used for switching a control terminal of the switching tube to receive an input signal or receive a driving signal outputted by the control circuit and switching an output terminal of the switching tube to connect a chip selection port of the control circuit or connect the power supply port of the control circuit under the control of the switch switching signal. The quick start gate driving device of the utility model can shorten starting time of the gate driving device.
Description
Technical field
The utility model relates to a kind of quick startup gate drive apparatus and control module thereof.
Background technology
Fig. 1 is traditional grid driving control system, comprise that resistance R 1, capacitor C 1, diode D1, resistance R 2, resistance R 3, transformer T1(comprise former limit winding, secondary winding and auxiliary winding), metal-oxide-semiconductor M1, resistance R 4, diode D2, output capacitance C2, LED lamp and control circuit 11.Wherein, a termination input voltage vin of resistance R 1, the other end of R1 is connected with an end of capacitor C 1, the end of diode D1 and the power port VCC of control circuit.The other end ground connection of capacitor C 1, the auxiliary winding of another termination transformer T1 of diode D1 and an end of resistance R 2, the other end ground connection of the auxiliary winding of transformer T1, the feedback port FB of the other end connection control circuit 11 of resistance R 2, and be connected with an end of resistance R 3, the other end ground connection of resistance R 3.The former limit winding one termination input voltage vin of transformer T1, the drain terminal of another termination metal-oxide-semiconductor M1, the driving signal output port DRV of the grid termination control circuit 11 of metal-oxide-semiconductor M1, the sheet of the source connection control circuit 11 of metal-oxide-semiconductor M1 selects port CS, and be connected with an end of resistance R 4, the other end ground connection of resistance R 4.The positive pole of one terminating diode D2 of the secondary winding of transformer T1, the negative pole of diode D2 connect the end of output capacitance C2, and are connected with an end of load LED lamp, and the another end of the other end of capacitor C 2 and load LED lamp is connected together, altogether.
Constant current driving control system shown in Figure 1, to control circuit 11 and drive circuitry, so the capacitance of capacitor C 1 is usually larger due to needs, makes system longer start-up time when starting, when particularly starting under 90V, tend to greater than 1S start-up time.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of quick startup gate drive apparatus and control module thereof, can shorten start-up time.
For solving the problems of the technologies described above, the utility model provides a kind of quick startup gate drive apparatus, comprising:
Control circuit, described control circuit has power port, and described power port is via the first capacity earth;
Transformer, the Same Name of Ends of its armature winding receives input signal, the different name end of its auxiliary winding is connected to described power port via the first diode, the Same Name of Ends ground connection of its auxiliary winding, wherein the positive pole of the first diode connects the different name end of described auxiliary winding, and the negative pole of described the first diode connects described power port;
Switching tube, its input connects the different name end of described armature winding;
Wherein, described control circuit also detects the voltage of described power port, and produces the switching over signal according to testing result; Described quick startup gate drive apparatus also comprises:
Switching circuit, under the control of described switching over signal, the control end of described switching tube is switched to the driving signal that receives described input signal or receive described control circuit output, the output of described switching tube is switched to the power port that the sheet that connects described control circuit selects port or connects described control circuit.
According to an embodiment of the present utility model, described quick startup gate drive apparatus also comprises:
The first resistance, its first end receives described input signal;
The second diode, its negative pole connects the second end of described the first resistance, its plus earth;
According to an embodiment of the present utility model, described switching circuit comprises:
The first switch, its first end connects the second end of described the first resistance, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
Second switch, its first end receives described driving signal, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
The 3rd switch, its first end connects the output of described switching tube, and its second end connects described power port, and its control end receives described switching over signal;
The 4th switch, its first end connects the output of described switching tube, and its second end connects described and selects port, and its control end receives described switching over signal.
According to an embodiment of the present utility model, described switching circuit comprises:
The first switch, its first end connects the second end of described the first resistance, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
Second switch, its first end receives described driving signal, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
The 3rd switch, its first end connects the output of described switching tube, and its second end connects described power port via the 4th resistance, and its control end receives described switching over signal;
The 4th switch, its first end connects the output of described switching tube, and its second end connects described and selects port, and its control end receives described switching over signal.
According to an embodiment of the present utility model, described quick startup gate drive apparatus also comprises:
The second resistance, its first end connects the different name end of described auxiliary winding, and its second end connects the feedback port of described control circuit;
The 3rd resistance, its first end connects the second end of described the second resistance, its second end ground connection.
According to an embodiment of the present utility model, described is selected port via the 4th grounding through resistance.
According to an embodiment of the present utility model, described quick startup gate drive apparatus also comprises:
Output diode, its anodal different name end that connects the secondary winding of described transformer, the Same Name of Ends ground connection of described secondary winding;
Output capacitance, the one end connects the negative pole of described output diode, its second end ground connection, described output capacitance is configured in parallel with load.
The utility model also provides a kind of control module of quick startup gate drive apparatus, comprises the described control circuit of above any one and switching circuit.
Compared with prior art, the utlity model has following advantage:
In the quick startup gate drive apparatus of the utility model embodiment, adopt switching circuit to come the charging process of Switching power port, armature winding and switching tube by transformer when initially powering on charge to power port, charging current is larger, therefore toggle speed is very fast, and can realize the function identical with the gate driver circuit of routine when normal operation.Through checking, can be reduced to below 200mS the start-up time of the quick startup gate drive apparatus of the utility model embodiment, can satisfy quick startup requirement.
Description of drawings
Fig. 1 is the circuit diagram of a kind of gate drive apparatus of the prior art;
Fig. 2 is the circuit diagram of the quick startup gate drive apparatus of one embodiment of the present of invention;
Fig. 3 is the circuit diagram of the quick startup gate drive apparatus of an alternative embodiment of the invention.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiments and the drawings, but should not limit protection range of the present utility model with this.
With reference to figure 2, the quick startup gate drive apparatus of the present embodiment mainly comprises: control module 20, transformer T, switching tube M1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first diode D2, the second diode D1, output diode D3, output capacitance C2 and load 23.Control module 20 comprises control circuit 21 and switching circuit 22.Wherein, control circuit 21 comprises that power port (indicating in figure), driving signal output port DRI1, sheet select port cs, feedback port fb, switching over signal output port UVLO.Wherein, the power port of control circuit 21 is connected with the power port VCC of control module 20, driving signal output port DRI1, the switching over signal output port UVLO of control circuit 21 are connected with switching circuit 22, the sheet of control circuit 21 selects port cs to select port CS to be connected with the sheet of control module 20, and the feedback port fb of control circuit 21 is connected with the feedback port FB of control module 20.Need to prove, in order to simplify, the power port VCC of control module 20 is not connected with control circuit 21 in Fig. 2, but is electrically connected between the power port VCC of the power port that it will be appreciated by those skilled in the art that control circuit 21 and control module 20.
Wherein, the power port of control circuit 21, drive signal output port DRI1, sheet select port cs, feedback port fb and the internal circuit relevant with these ports identical with control circuit of the prior art.With prior art similarly, control circuit 21 produces and drives signal and pass through to drive signal output port DRI1 output, the sheet of control circuit 21 selects the sheet of port cs and control module 20 to select port CS via the 4th resistance R s ground connection, and power port VCC is via the first capacitor C 1 ground connection.
In the present embodiment, control circuit 21 also detects the voltage of power port (being also the power port VCC of control module), and produce the switching over signal according to testing result, this switching over signal is used for the switching of control switch circuit 22 each on off states via switching over signal output port UVLO output.For example, can comprise comparator in control circuit 21, voltage for detection of power port VCC, when VCC voltage during higher than the first set point, switching over signal output port UVLO exports a default signal, and during lower than the second set point, the signal of switching over signal output port UVLO output overturns when VCC voltage, wherein, the first set point will be higher than the second set point.
In addition, control module 20 in the present embodiment also comprises port VST and port COMP, be connected to respectively port vst and the port comp of control circuit 21, its middle port VST receives input signal Vin via the first resistance R 1, and via the second electric capacity D1 ground connection, its middle port VST connects the negative pole of the second electric capacity D1, the plus earth of the second electric capacity D1.Port COMP is used for loop compensation via capacitor C 3 ground connection.
The Same Name of Ends of the armature winding L1 of transformer T receives input signal Vin, the input of the different name end connecting valve pipe M1 of armature winding L1.This switching tube M1 can be for example MOS transistor.
The Same Name of Ends ground connection of the secondary winding L 2 of transformer T, the different name end of secondary winding L 2 connects the positive pole of output diode D3, the negative pole of output diode D3 connects the end of output capacitance C2, the other end ground connection of output capacitance C2, and output capacitance C2 is configured in parallel with load 23.This load is such as being LED lamp etc.
The different name end of the auxiliary winding L 3 of transformer T is connected to power port VCC via the first diode D2, the Same Name of Ends ground connection of auxiliary winding L 3, wherein the positive pole of the first diode D2 connects the different name end of auxiliary winding L 3, and the negative pole of the first diode D2 connects power port VCC.In addition, the different name end of auxiliary winding L 3 connects the first end of the second resistance R 2, and the second end of the second resistance R 2 connects the first end of the 3rd resistance R 3, the second end ground connection of the 3rd resistance R 3.In addition, feedback port FB connects the first end of the 3rd resistance.
More specifically, at the voltage of power port VCC during less than default starting resistor (when just powering on), switching over signal control switch circuit 22 switches to reception input signal Vin with the control end DRI of switching tube M1, and be also the power port of control circuit 21 with the power port VCC(that the output SW of switching tube M1 switches to link control module 20), by armature winding L1 and switching tube M1, the first capacitor C 1 of power port VCC is charged; When the voltage of power port VCC reaches this starting resistor, switching over signal control switch circuit 22 switches to the control end DRI of switching tube M1 the driving signal of reception control circuit 21 outputs, and the output SW of switching tube M1 is switched to the sheet that connects control circuit 21 select port cs, whole gate drive apparatus recovers the routine work state.
As a nonrestrictive example, switching circuit 22 can comprise: the first K switch 1, its first end connects the second end of the first resistance R 1, the control end DRI of its second end connecting valve pipe M1, its control end receiving key switching signal (being connecting valve switching signal output UVLO); Second switch K2, its first end receive and drive signal (namely connect and drive signal output part DRI1), the control end DRI of its second end connecting valve pipe M1, its control end receiving key switching signal (being connecting valve switching signal output UVLO); The 3rd K switch 3, the output SW of its first end connecting valve pipe M1, its second end connects power port VCC, its control end receiving key switching signal (being connecting valve switching signal output UVLO); The 4th K switch 4, it is also that the sheet of control circuit 21 selects port cs that the output SW of its first end connecting valve pipe M1, its second end brace select port CS(), its control end receiving key switching signal (being connecting valve switching signal output UVLO).
As shown in Figure 3, switching circuit can also be another circuit structure, be with switching circuit difference shown in Figure 2, the 3rd K switch 3, the output SW of its first end connecting valve pipe M1, its second end connects an end of the 4th resistance, and the other end of the 4th resistance connects power port VCC, its control end receiving key switching signal (being connecting valve switching signal output UVLO).
Those skilled in the art are to be understood that, switching circuit 22 can also adopt other any suitable particular circuit configurations, as long as can realize following functions: under the control of switching over signal, the control end DRI of switching tube M1 is switched to the driving signal that receives input signal Vin or reception control circuit 21 outputs, the output SW of switching tube M1 is switched to the power port that the sheet that connects control circuit 21 selects port cs or connects control circuit 21.
the operation principle of quick startup gate drive apparatus shown in Figure 2 is as follows: when system initially powers on, the first resistance R 1 current flowing, carry out voltage stabilizing by the second diode D1, control circuit 21 detects the voltage of power port VCC, before the voltage of power port VCC rises to default starting resistor, switching over signal controlling the first K switch 1 is open-minded, second switch K2 disconnects, the 3rd K switch 3 is open-minded, the 4th K switch 4 disconnects, switching tube M1 conducting, input signal Vin is by the armature winding L1 of transformer T, switching tube M1 and the 3rd K switch 3 are given power port VCC quick charge, when the voltage of power port VCC charges to starting resistor, switching over signal controlling the first K switch 1 disconnects, second switch K2 conducting, the 3rd K switch 3 disconnects, the 4th K switch 4 conductings, control circuit 21 reception feedback port FB and sheet select the signal of port CS, and the capacitor C 3 by port COMP is carried out loop compensation.So far, this starts fast gate drive apparatus and completes start-up course, begins normal operation.
To sum up, the quick startup gate drive apparatus of the present embodiment is when initially powering on, be connected to the capacitor C 1 of power port VCC by primary winding L 1 and switching tube M1 charging, charging current can arrange larger, toggle speed is very fast, and the same with the gate drive apparatus of routine when normal operation.Therefore can obtain very fast start-up time, can be reduced to start-up time below 200mS, can satisfy quick startup requirement.
Although the utility model with preferred embodiment openly as above; but it is not to limit the utility model; any those skilled in the art are not within breaking away from spirit and scope of the present utility model; can make possible change and modification, therefore protection range of the present utility model should be as the criterion with the scope that the utility model claim is defined.
Claims (8)
1. one kind starts gate drive apparatus fast, comprising:
Control circuit, described control circuit has power port, and described power port is via the first capacity earth;
Transformer, the Same Name of Ends of its armature winding receives input signal, the different name end of its auxiliary winding is connected to described power port via the first diode, the Same Name of Ends ground connection of its auxiliary winding, wherein the positive pole of the first diode connects the different name end of described auxiliary winding, and the negative pole of described the first diode connects described power port;
Switching tube, its input connects the different name end of described armature winding;
It is characterized in that, described control circuit also detects the voltage of described power port, and produces the switching over signal according to testing result; Described quick startup gate drive apparatus also comprises:
Switching circuit, under the control of described switching over signal, the control end of described switching tube is switched to the driving signal that receives described input signal or receive described control circuit output, the output of described switching tube is switched to the power port that the sheet that connects described control circuit selects port or connects described control circuit.
2. quick startup gate drive apparatus according to claim 1, is characterized in that, also comprises:
The first resistance, its first end receives described input signal;
The second diode, its negative pole connects the second end of described the first resistance, its plus earth.
3. quick startup gate drive apparatus according to claim 2, is characterized in that, described switching circuit comprises:
The first switch, its first end connects the second end of described the first resistance, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
Second switch, its first end receives described driving signal, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
The 3rd switch, its first end connects the output of described switching tube, and its second end connects described power port, and its control end receives described switching over signal;
The 4th switch, its first end connects the output of described switching tube, and its second end connects described and selects port, and its control end receives described switching over signal.
4. quick startup gate drive apparatus according to claim 2, is characterized in that, described switching circuit comprises:
The first switch, its first end connects the second end of described the first resistance, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
Second switch, its first end receives described driving signal, and its second end connects the control end of described switching tube, and its control end receives described switching over signal;
The 3rd switch, its first end connects the output of described switching tube, and its second end connects described power port via the 4th resistance, and its control end receives described switching over signal;
The 4th switch, its first end connects the output of described switching tube, and its second end connects described and selects port, and its control end receives described switching over signal.
5. quick startup gate drive apparatus according to claim 1, is characterized in that, also comprises:
The second resistance, its first end connects the different name end of described auxiliary winding, and its second end connects the feedback port of described control circuit;
The 3rd resistance, its first end connects the second end of described the second resistance, its second end ground connection.
6. quick startup gate drive apparatus according to claim 1, is characterized in that, described is selected port via the 4th grounding through resistance.
7. quick startup gate drive apparatus according to claim 1, is characterized in that, also comprises:
Output diode, its anodal different name end that connects the secondary winding of described transformer, the Same Name of Ends ground connection of described secondary winding;
Output capacitance, the one end connects the negative pole of described output diode, its second end ground connection, described output capacitance is configured in parallel with load.
8. a control module that starts fast gate drive apparatus, is characterized in that, comprises the described control circuit of any one and switching circuit in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207472743U CN203014666U (en) | 2012-12-28 | 2012-12-28 | Quick start gate driving device and control module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207472743U CN203014666U (en) | 2012-12-28 | 2012-12-28 | Quick start gate driving device and control module thereof |
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| Publication Number | Publication Date |
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| CN203014666U true CN203014666U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012207472743U Withdrawn - After Issue CN203014666U (en) | 2012-12-28 | 2012-12-28 | Quick start gate driving device and control module thereof |
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| CN (1) | CN203014666U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983752A (en) * | 2012-12-28 | 2013-03-20 | 杭州士兰微电子股份有限公司 | Quick-start gate driving device and control module thereof |
| CN104242623A (en) * | 2014-09-05 | 2014-12-24 | 中南民族大学 | Quick start method and quick start control circuit of switching power supply |
| CN105790564A (en) * | 2016-04-13 | 2016-07-20 | 深圳市赢新光电发展有限公司 | Starting circuit and switch power supply |
| CN108599100A (en) * | 2018-07-10 | 2018-09-28 | 上海艾为电子技术股份有限公司 | A kind of ON-OFF control circuit and load switch |
| CN109194109A (en) * | 2018-09-27 | 2019-01-11 | 广州金升阳科技有限公司 | A kind of compensation circuit |
-
2012
- 2012-12-28 CN CN2012207472743U patent/CN203014666U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983752A (en) * | 2012-12-28 | 2013-03-20 | 杭州士兰微电子股份有限公司 | Quick-start gate driving device and control module thereof |
| CN104242623A (en) * | 2014-09-05 | 2014-12-24 | 中南民族大学 | Quick start method and quick start control circuit of switching power supply |
| CN105790564A (en) * | 2016-04-13 | 2016-07-20 | 深圳市赢新光电发展有限公司 | Starting circuit and switch power supply |
| CN105790564B (en) * | 2016-04-13 | 2018-05-08 | 深圳茂硕电子科技有限公司 | A kind of start-up circuit and Switching Power Supply |
| CN108599100A (en) * | 2018-07-10 | 2018-09-28 | 上海艾为电子技术股份有限公司 | A kind of ON-OFF control circuit and load switch |
| CN108599100B (en) * | 2018-07-10 | 2024-02-09 | 上海艾为电子技术股份有限公司 | Switch control circuit and load switch |
| CN109194109A (en) * | 2018-09-27 | 2019-01-11 | 广州金升阳科技有限公司 | A kind of compensation circuit |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150318 |
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| RGAV | Abandon patent right to avoid regrant |