CN201550035U - IGBT drive circuit in alternating-current chopper circuit - Google Patents
IGBT drive circuit in alternating-current chopper circuit Download PDFInfo
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- CN201550035U CN201550035U CN 200920277665 CN200920277665U CN201550035U CN 201550035 U CN201550035 U CN 201550035U CN 200920277665 CN200920277665 CN 200920277665 CN 200920277665 U CN200920277665 U CN 200920277665U CN 201550035 U CN201550035 U CN 201550035U
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- drive circuit
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Abstract
The utility model relates to an IGBT drive circuit capable of directly supplying alternating current and used in an alternating-current chopper circuit. The IGBT drive circuit comprises a chopper IGBT, a freewheeling diode IGBT, an AC/DC conversion circuit, a direct-current voltage stabilizing circuit, an HCPL316J drive circuit, a power amplifying circuit, a zero cross detection circuit and a logic control circuit, wherein the AC/DC conversion circuit supplies power to the HCPL316J drive circuit and the logic control circuit through the direct-current voltage stabilizing circuit; and the zero cross detection circuit provides digital logic for the logic control circuit, the logic control circuit outputs a logic control signal to the HCPL316J drive circuit, and the HCPL316J drive circuit respectively drives the chopper IGBT and the freewheeling diode IGBT after through the power amplifying circuit. The utility model has the advantages of convenient power supply, security, reliability, intelligent control, compact circuit structure and reasonable layout, and has higher differential mode rejection and common mode rejection, thereby improving the reliability of the circuit.
Description
Technical field:
The utility model relates to the drive circuit in the electric power system, is specifically related in a kind of AC chopping circuit the directly IGBT drive circuit of Alternating Current Power Supply.
Background technology:
The IGBT drive circuit has been widely used in the every field of power electronic equipment, and for example Switching Power Supply, motor-driven, reactive power compensation and harmonic wave suppress.Important unusually because of its status, the design of drive circuit of IGBT is the key of the reliable and stable operation of device usually.At present in circuit such as AC chopping, need separately to the IGBT drive circuit carries out external dc power power supply design, in the limited device in space, be unfavorable for intensifying, increased volume and cost.
The utility model content:
The purpose of this utility model is to provide a kind of also can realize driven management in the occasion of having only ac power supply, and integrated ac zero-crossing point detection, particularly in the AC chopping circuit, also can realize the IGBT drive circuit of the driving pulse control of positive-negative half-cycle, the utility model IGBT driving circuit structure compactness, rationally distributed, control intelligence.
For achieving the above object, the utility model proposes the IGBT drive circuit in a kind of AC chopping circuit, it comprises copped wave IGBT and afterflow IGBT, it is characterized in that: this circuit also comprises the AC/DC change-over circuit, direct current regulation circuit, HCPL316J drive circuit, power amplification circuit, zero cross detection circuit and logic control circuit;
Described AC/DC change-over circuit and power connection, and by direct current regulation circuit to HCLP316J drive circuit and logic control circuit stable power-supplying;
Described zero cross detection circuit and AC power are connected, and provide Digital Logic to logic control circuit, described logic control circuit is to HCLP316J drive circuit output logic control signal, and described HLP316J drive circuit drives copped wave IGBT and afterflow IGBT respectively behind power amplification circuit.
An optimal technical scheme of the present utility model is: the described AC/DC change-over circuit of the IGBT drive circuit in a kind of AC chopping circuit comprises, AC power, high-frequency pulse transformer, ON-OFF control circuit, described AC power are converted to the galvanic current source after by high-frequency pulse transformer and ON-OFF control circuit rectification, filtering.
Another optimal technical scheme of the utility model is: the described zero cross detection circuit of IGBT drive circuit is realized the zero passage detection of alternating voltage in a kind of AC chopping circuit, for logic control circuit provides Digital Logic information, realize exchanging reliably positive-negative half-cycle output control.
The utility model optimal technical scheme again is: the described logic control circuit of IGBT drive circuit is realized the logic control of whole drive circuit in a kind of AC chopping circuit.
The utility model the 4th optimal technical scheme is: the described HCPL316J drive circuit of the IGBT drive circuit in a kind of AC chopping circuit mainly finishes output control by the HCPL316J chip for driving and protection detects.
The utility model the 5th optimal technical scheme is: the described zero cross detection circuit of the IGBT drive circuit in a kind of AC chopping circuit is arranged between described AC/DC change-over circuit and the logic control circuit, described direct current regulation circuit is symmetricly set on described AC/DC change-over circuit both sides, and described HCLP316J drive circuit and power amplification circuit are symmetricly set on described zero cross detection circuit and logic control circuit both sides.
The utility model beneficial effect: the utlity model has the advantage that power taking is convenient, intensify, its inner integrated AC/DC change-over circuit is convenient to directly adopt Alternating Current Power Supply to use; Zero cross detection circuit realizes exchanging positive-negative half-cycle copped wave and afterflow control, avoids taking place the IGBT shoot through, and is safe and reliable; Power amplification circuit is convenient to realize the expansion of driving power.And when circuit design, taken into full account electromagnetic interference, accomplished reasonable configuration aspect the layout of device and the PCB cabling, carried out effective differential mode and suppressed and common mode inhibition, improved the reliability of circuit.The HCLP316J drive circuit is low-cost and be easy to realization, satisfies the safety and adjusting needs of wide region.
Description of drawings:
Fig. 1 the utility model circuit structure schematic layout pattern;
Fig. 2 the utility model circuit topology schematic diagram.
Embodiment:
As shown in Figure 1 and Figure 2, the IGBT drive circuit in a kind of AC chopping circuit of the present utility model comprises: copped wave IGBT 1, afterflow IGBT 2, AC/DC change-over circuit 3, direct current regulation circuit 4, HCPL316J drive circuit 5, power amplification circuit 6, zero cross detection circuit 7 and logic control circuit 8.AC/DC change-over circuit 3 and power connection, and pass through direct current regulation circuit 4 to HCLP316J drive circuit 5 and logic control circuit 8 stable power-supplyings.AC/DC change-over circuit 3 comprises, AC power, high-frequency pulse transformer, ON-OFF control circuit, AC power is converted to the galvanic current source after by high-frequency pulse transformer and ON-OFF control circuit rectification, filtering, also can easily realize driven management in the occasion of having only ac power supply.Zero cross detection circuit 7 is connected with AC power, alternating voltage is carried out zero passage detection and provides Digital Logic to logic control circuit 8, it can accurately detect the positive-negative half-cycle of alternating voltage, and provide work period of copped wave IGBT v1, v2 and afterflow IGBT v3, v4, avoid taking place the IGBT shoot through, control exchanges positive-negative half-cycle output.Logic control circuit 8 is to HCLP316J drive circuit 5 output logic control signals, and HLP316J drive circuit 5 drives copped wave IGBT 1 and afterflow IGBT 2 respectively behind power amplification circuit 6.The logic control that logic control circuit 8 is realized whole drive circuit.HCPL316J drive circuit 5 mainly finishes output control by the HCPL316J chip for driving and protection detects.
As shown in Figure 2, the circuit topology operation principle is summarized as follows: handle by zero-crossing detection circuit 7 and logic control circuit 8, determine positive-negative half-cycle switching tube switching signal, promptly at the positive half cycle of input voltage, guarantee IGBT switching tube V1 and V4 conducting, realize the copped wave and the afterflow of the positive half cycle of input voltage, at the input voltage negative half period, guarantee IGBT switching tube V2 and V3 conducting, realize the copped wave and the afterflow of input voltage negative half period.Whole process is safe and reliable, IGBT shoot through phenomenon can not occur.
IGBT drive circuit electrical structure compactness in the utility model AC chopping circuit, implement line clear, its circuit structure layout as shown in Figure 1, zero cross detection circuit 7 is arranged between AC/DC change-over circuit 3 and the logic control circuit 8, direct current regulation circuit 4 is symmetricly set on AC/DC change-over circuit 3 both sides, and HCLP316J drive circuit 5 and power amplification circuit 6 are symmetricly set on zero cross detection circuit 7 and logic control circuit 8 both sides.When circuit design, take into full account the electromagnetic interference factor, accomplished reasonable configuration aspect the layout of device and the PCB cabling, carried out effective differential mode and suppressed and common mode inhibition, improved the reliability of circuit.
Should be noted that at last; above embodiment is only in order to explanation the technical solution of the utility model but not it is limited; although the utility model is had been described in detail with reference to the foregoing description; described art is to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model; and do not break away from any modification of the utility model spirit and scope or be equal to replacement, all should be encompassed in the claim protection range of the present utility model.
Claims (6)
1. the IGBT drive circuit in the AC chopping circuit, it comprises copped wave IGBT (1) and afterflow IGBT (2), it is characterized in that: this circuit also comprises AC/DC change-over circuit (3), direct current regulation circuit (4), HCPL316J drive circuit (5), power amplification circuit (6), zero cross detection circuit (7) and logic control circuit (8);
Described AC/DC change-over circuit (3) and power connection, and pass through direct current regulation circuit (4) to HCLP316J drive circuit (5) and logic control circuit (8) stable power-supplying;
Described zero cross detection circuit (7) is connected with AC power, and provide Digital Logic to logic control circuit (8), described logic control circuit (8) is to HCLP316J drive circuit (5) output logic control signal, and described HLP316J drive circuit (5) drives copped wave IGBT (1) and afterflow IGBT (2) respectively behind power amplification circuit (6).
2. the IGBT drive circuit in a kind of AC chopping circuit as claimed in claim 1, it is characterized in that: described AC/DC change-over circuit (3) comprises, AC power, high-frequency pulse transformer, ON-OFF control circuit, described AC power are converted to the galvanic current source after by high-frequency pulse transformer and ON-OFF control circuit rectification, filtering.
3. IGBT drive circuit in a kind of AC chopping circuit as claimed in claim 1, it is characterized in that: described zero cross detection circuit (7) is realized the zero passage detection of alternating voltage, for logic control circuit (8) provides Digital Logic information, realize exchanging reliably positive-negative half-cycle output control.
4. the IGBT drive circuit in a kind of AC chopping circuit as claimed in claim 1 is characterized in that: described logic control circuit (8) is realized the logic control to whole drive circuit.
5. the IGBT drive circuit in a kind of AC chopping circuit as claimed in claim 1 is characterized in that: described HCPL316J drive circuit (5) mainly finishes output control by the HCPL316J chip for driving and protection detects.
6. the IGBT drive circuit in a kind of AC chopping circuit as claimed in claim 1, it is characterized in that: described zero cross detection circuit (7) is arranged between described AC/DC change-over circuit (3) and the logic control circuit (8), described direct current regulation circuit (4) is symmetricly set on described AC/DC change-over circuit (3) both sides, and described HCLP316J drive circuit (5) and power amplification circuit (6) are symmetricly set on described zero cross detection circuit (7) and logic control circuit (8) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277665 CN201550035U (en) | 2009-12-07 | 2009-12-07 | IGBT drive circuit in alternating-current chopper circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277665 CN201550035U (en) | 2009-12-07 | 2009-12-07 | IGBT drive circuit in alternating-current chopper circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550035U true CN201550035U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920277665 Expired - Fee Related CN201550035U (en) | 2009-12-07 | 2009-12-07 | IGBT drive circuit in alternating-current chopper circuit |
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| Country | Link |
|---|---|
| CN (1) | CN201550035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494481A (en) * | 2020-04-07 | 2021-10-12 | 上海灏群电子科技有限公司 | Speed regulator of AC fan |
-
2009
- 2009-12-07 CN CN 200920277665 patent/CN201550035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113494481A (en) * | 2020-04-07 | 2021-10-12 | 上海灏群电子科技有限公司 | Speed regulator of AC fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20181207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |