CN202363922U - Pulse absorbing circuit - Google Patents
Pulse absorbing circuit Download PDFInfo
- Publication number
- CN202363922U CN202363922U CN2011204410295U CN201120441029U CN202363922U CN 202363922 U CN202363922 U CN 202363922U CN 2011204410295 U CN2011204410295 U CN 2011204410295U CN 201120441029 U CN201120441029 U CN 201120441029U CN 202363922 U CN202363922 U CN 202363922U
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- diode
- switching tube
- igbt switching
- pulse
- positive pole
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- Withdrawn - After Issue
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Abstract
The utility model discloses a pulse absorbing circuit applied in a discharge loop of a high power electric discharge machine, wherein the discharge loop is composed of a discharge resistor (R1), an IGBT switch tube (Q1), IGBT switch tube (Q1) grid control resistors (R2, R3) and an impedance absorption capacitor (C2); the pulse absorbing circuit is composed of diodes (D1,D2) and a pulse absorption capacitor (C1). The diode (D1) and the pulse absorption capacitor (C1) are in serial connection and are connected to positive and negative poles of an accumulator (V1); a negative pole of the diode (D1) is in connection with a positive pole of the accumulator (V1); a positive pole of the diode (D2) is in connection with a drain electrode of the IGBT switch tube (Q1); a positive pole of the diode (D2) is in connection with the a common terminal of the pulse absorption capacitor (C1); the discharge resistor (R1) is in bridge connection between the positive pole of the diode (D2) and the negative pole of the diode (D1). When the IGBT switch tube (Q1) is turned off, the drain electrode of the IGBT switch tube (Q1) charges for the pulse absorption capacitor (C1) through the diode (D2); the pulse absorption capacitor (C1) stores energy, and when charging voltage is higher than battery voltage, the accumulator (V1) is performed charging through the diode (D1). The accumulator (V1) can be regarded as a large capacitor so as to effectively restrain the voltage of the drain electrode.
Description
Technical field
The utility model relates to high power discharge machine technology field, particularly a kind of pulse absorption circuit that is applied in the high power discharge machine discharge loop.
Background technology
Referring to Fig. 1; The discharge loop of high power discharge machine is absorbed capacitor C 2 and is constituted by discharge resistance R1, IGBT pipe Q1, IGBT switching tube Q1 grid controlling resistance R2, R3, impedance at present; The grid of the termination IGBT switching tube Q1 of IGBT switching tube Q1 grid controlling resistance R3, R2 wherein, the control end of another termination Electrical Discharge Machine of IGBT switching tube Q1 grid controlling resistance R3, the other end ground connection of IGBT switching tube Q1 grid controlling resistance R2; The source ground of IGBT switching tube Q1; Drain electrode connects the positive pole of storage battery V1, the minus earth of storage battery V1, and between the positive pole of the drain electrode of IGBT switching tube Q1 and storage battery V1 cross-over connection one discharge resistance R1; Impedance absorbs the drain electrode of a termination IGBT switching tube Q1 of capacitor C 2, other end ground connection.Its operation principle is: implement discharge through cut-offfing of IGBT switching tube Q1.As a rule, IGBT switching tube Q1 switching frequency 150Hz, discharging current reaches 300A.Because discharge resistance R1 is perception in discharge process, add that discharge line is long, the resistance of circuit copper also is perception, and therefore, IGBT switching tube Q1 is under the switch off state, and its drain electrode has quite high pulse voltage, can cause damage to storage battery.
The utility model content
The utility model technical problem to be solved is to the existing existing problem of high power discharge machine discharge loop; And a kind of pulse absorption circuit that is applied in the high power discharge machine discharge loop is provided; This pulse absorption circuit can effectively absorb GBT switching tube Q1 under the switch off state, the pulse voltage of drain electrode.
The utility model technical problem to be solved can realize through following technical scheme:
A kind of pulse absorption circuit; Wherein discharge loop is absorbed capacitor C 2 and is constituted by discharge resistance R1, IGBT pipe Q1, IGBT switching tube Q1 grid controlling resistance R2, R3, impedance, the grid of the termination IGBT switching tube Q1 of IGBT switching tube Q1 grid controlling resistance R2, R3 wherein, the control end of another termination Electrical Discharge Machine of IGBT switching tube Q1 grid controlling resistance R3; The other end ground connection of IGBT switching tube Q1 grid controlling resistance R2; The source ground of IGBT switching tube Q1, drain electrode connects the positive pole of storage battery V1, the minus earth of storage battery V1; Impedance absorbs the drain electrode of a termination IGBT switching tube Q1 of capacitor C 2, other end ground connection; Pulse absorption circuit absorbs capacitor C 1 by diode D1, D2 and pulse and forms; Wherein diode D1 and pulse are connected on the both positive and negative polarity of storage battery V1 after absorbing capacitor C 1 series connection; The negative pole of diode D1 connects the positive pole of storage battery V1; The positive pole of diode D2 connects the drain electrode of IGBT switching tube Q1, and the negative pole of diode D2 connects the common port of diode D1 and pulse absorption capacitor C 1; Cross-over connection discharge resistance R1 between the negative pole of the positive pole of diode D2 and diode D1.
The operation principle of the utility model is: when IGBT switching tube Q1 turn-offs; The drain electrode of IGBT switching tube Q1 absorbs capacitor C 1 charging through diode D2 to pulse; Pulse absorbs capacitor C 1 stored energy, when charging voltage is higher than cell voltage, charges to storage battery V1 through D1; Because storage battery V1 can regard a big electric capacity as, thereby effectively limit the voltage of drain electrode.
Description of drawings
Fig. 1 is the electric principle schematic of existing high power discharge machine discharge loop.
Fig. 2 is the utility model pulse absorption circuit electrical schematic diagram.
Embodiment
For the technological means, the creation characteristic that make the utility model, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the utility model.
Referring to Fig. 2; A kind of pulse absorption circuit that is applied in the high power discharge machine discharge loop shown in the figure; Wherein discharge loop is absorbed capacitor C 2 and is constituted by discharge resistance R1, IGBT pipe Q1, IGBT switching tube Q1 grid controlling resistance R2, R3, impedance, the grid of the termination IGBT switching tube Q1 of IGBT switching tube Q1 grid controlling resistance R2, R3 wherein, and another termination Electrical Discharge Machine XFG1 binding post of IGBT switching tube Q1 grid controlling resistance R3 is anodal; The other end ground connection of IGBT switching tube Q1 grid controlling resistance R2; The source ground of IGBT switching tube Q1, drain electrode connects the positive pole of storage battery V1, the minus earth of storage battery V1; Impedance absorbs the drain electrode of a termination IGBT switching tube Q1 of capacitor C 2, other end ground connection; Pulse absorption circuit absorbs capacitor C 1 by diode D1, D2 and pulse and forms; Wherein diode D1 is connected on the both positive and negative polarity of storage battery V1 after capacitor C 1 is connected with absorbing; The negative pole of diode D1 connects the positive pole of storage battery V1; The positive pole of diode D2 connects the drain electrode of IGBT switching tube Q1, and the negative pole of diode D2 connects the common port of diode D1 and pulse absorption capacitor C 1; Cross-over connection discharge resistance R1 between the negative pole of the positive pole of diode D2 and diode D1.
Among Fig. 1 and Fig. 2: L1 and L2 represent the induction reactance of discharge line; XSC1 representes charger, and XFG1 representes Electrical Discharge Machine.
More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (1)
1. pulse absorption circuit; Wherein discharge loop is absorbed electric capacity (C2) and is constituted by discharge resistance (R1), IGBT pipe (Q1), IGBT switching tube (Q1) grid controlling resistance (R2), the 2nd IGBT switching tube (Q1) grid controlling resistance (R3), impedance; The grid of a termination IGBT switching tube (Q1) of IGBT switching tube (Q1) grid controlling resistance (R2) and the 2nd IGBT switching tube (Q1) grid controlling resistance (R3) wherein; The control end of another termination Electrical Discharge Machine of the 2nd IGBT switching tube (Q1) grid controlling resistance (R3), the other end ground connection of IGBT switching tube (Q1) grid controlling resistance (R2), the source ground of IGBT switching tube (Q1); Drain electrode connects the positive pole of storage battery (V1); The minus earth of storage battery (V1), impedance absorbs the drain electrode of a termination IGBT switching tube (Q1) of electric capacity (C2), other end ground connection; It is characterized in that; Said pulse absorption circuit absorbs electric capacity (C1) by first diode (D1), second diode (D2) and pulse and forms; Wherein first diode (D1) and pulse are connected on the both positive and negative polarity of storage battery (V1) after absorbing electric capacity (C1) series connection; The negative pole of first diode (D1) connects the positive pole of storage battery (V1), and the positive pole of second diode (D2) connects the drain electrode of IGBT switching tube (Q1), and the negative pole of second diode (D2) connects the common port of first diode (D1) and pulse absorption electric capacity (C1); Cross-over connection discharge resistance (R1) between the negative pole of the positive pole of second diode (D2) and first diode (D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204410295U CN202363922U (en) | 2011-11-09 | 2011-11-09 | Pulse absorbing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204410295U CN202363922U (en) | 2011-11-09 | 2011-11-09 | Pulse absorbing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363922U true CN202363922U (en) | 2012-08-01 |
Family
ID=46575078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204410295U Withdrawn - After Issue CN202363922U (en) | 2011-11-09 | 2011-11-09 | Pulse absorbing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107561A (en) * | 2011-11-09 | 2013-05-15 | 上海施能电器设备厂 | Pulse absorption circuit applied to electric discharge circuit of high-power electric discharge machine |
| CN109174597A (en) * | 2018-10-25 | 2019-01-11 | 深圳市洁盟清洗设备有限公司 | Ultrasonic wave generative circuit and ultrasonic cleaning cup |
-
2011
- 2011-11-09 CN CN2011204410295U patent/CN202363922U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107561A (en) * | 2011-11-09 | 2013-05-15 | 上海施能电器设备厂 | Pulse absorption circuit applied to electric discharge circuit of high-power electric discharge machine |
| CN103107561B (en) * | 2011-11-09 | 2016-08-17 | 上海施能电器设备有限公司 | A kind of pulse absorption circuit being applied in high power discharge machine discharge loop |
| CN109174597A (en) * | 2018-10-25 | 2019-01-11 | 深圳市洁盟清洗设备有限公司 | Ultrasonic wave generative circuit and ultrasonic cleaning cup |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI SHINENG ELECTRICAL EQUIPMENT CO., LTD. Free format text: FORMER NAME: SHINENG ELECTRICAL APPLIANCE EQUIPMENT PLANT, SHANGHAI |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 201316, No. 22, air sound Road, Pudong New Area, Shanghai Patentee after: SHANGHAI SHINENG ELECTRIC EQUIPMENT CO., LTD. Address before: 201316, No. 22, air sound Road, Pudong New Area, Shanghai Patentee before: Shanghai Shineng Electrical Appliance Equipment Factory |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120801 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |