CN201041987Y - Quick breaking inductive load rectifier using field effect tube - Google Patents
Quick breaking inductive load rectifier using field effect tube Download PDFInfo
- Publication number
- CN201041987Y CN201041987Y CNU2007200958980U CN200720095898U CN201041987Y CN 201041987 Y CN201041987 Y CN 201041987Y CN U2007200958980 U CNU2007200958980 U CN U2007200958980U CN 200720095898 U CN200720095898 U CN 200720095898U CN 201041987 Y CN201041987 Y CN 201041987Y
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- CN
- China
- Prior art keywords
- effect transistor
- rectifier
- field effect
- inductive load
- field
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- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a fast inductive load breaking rectifier using a field-effect transistor. The negative electrode of an input power supply is connected to the positive electrode output end of the rectifier via two piezoresistors R3 and R4 in serial connection and then in parallel connection with a diode D1; the negative electrode also connects with the grid electrode G of a field-effect transistor VT1 via two resistors R9 and R10 in serial connection and then in parallel connection with a capacitor C2; the negative electrode of the input power supply is also directly connected with the source electrode S of the field-effect transistor VT1; the grid electrode G and the source electrode S of the field-effect transistor VT1 are connected via resistors R7 and R8 in parallel connection; the drain electrode D of the field-effect transistor VT1 is the negative electrode of the output end of the rectifier; the positive electrode of the input power supply is connected to the output end of the positive electrode of the rectifier via two piezoresistors R5 and R6 in serial connection and then in parallel connection with a diode D2. When the input is cut off, the field-effect transistor of the utility model is cut off, so the output side of the rectifier and the load cannot form a circuit, and the inductive load can also be quickly demagnetized. In addition, a capacitor and piezoresistors are added at two sides of the switch of the field-effect transistor to absorb surges of the inductive load after the circuit is broken to protect the field-effect transistor.
Description
Technical field
The utility model relates to a kind of rectifier.Particularly relate to a kind ofly when the input side rectifier power supply disconnects, inductive load is the rectifier of the quick disjunction inductive load of the use field effect transistor of demagnetization rapidly also.
Background technology
At present, general rectifier is in the load of output side joint, during rectifier work, inductive load work, when rectifier is not worked, because the characteristic of inductive load, in the DC side formation loop of inductive load and rectifier, and inductive load needs the regular hour could eliminate the inductive load magnetic field of causing because of its characteristic fully.But in the occasion of some practical applications, when requiring the input side disconnection of rectifier, inductive load is demagnetization rapidly also.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of when the input side rectifier power supply disconnects, and inductive load is the rectifier of the quick disjunction inductive load of the use field effect transistor of demagnetization rapidly also.
The technical scheme that the utility model adopted is: a kind of rectifier that uses the quick disjunction inductive load of field effect transistor, the anodal S of its rectifier input power supply
+By after two piezo-resistance R5, the R6 series connection again with the be in parallel cathode output end V of rectifier of diode D2
+The negative pole S of rectifier input power supply
-By arriving the cathode output end V of rectifier after being in parallel with diode D1 again after two piezo-resistance R3, the R4 series connection
+The negative pole S of input power supply
-Also then be connected the grid G of field effect transistor VT1 by being in parallel with capacitor C 2 again after two resistance R 9, the R10 series connection; The negative pole S of input power supply
-The source S that also directly connects field effect transistor VT1; And between the grid G of field effect transistor VT1 and the source S also the parallel connection by resistance R 7, R8 be connected; The drain D of field effect transistor VT1 is the negative pole V of rectifier output end
-
Also be connected between the drain D of field effect transistor VT1 and the source S by being in parallel with capacitor C 1 again after two piezo-resistance R1, the R2 series connection.
The rectifier of the quick disjunction inductive load of use field effect transistor of the present utility model, owing in the loop of rectifier, add field effect transistor, when rectifier input power supply disconnects, field effect transistor disconnects, make the outlet side and the load of rectifier can not form the loop, so when the input side rectifier power supply disconnected, inductive load is demagnetization rapidly also.Increase electric capacity and piezo-resistance simultaneously in the fet switch both sides, the surge of inductive load has been protected field effect transistor after disconnecting in order to absorption circuit.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is the circuit theory diagrams of another embodiment of the utility model.
Embodiment
Provide specific embodiment below in conjunction with accompanying drawing, further specify the rectifier of the quick disjunction inductive load of use field effect transistor of the present utility model.
As shown in Figure 1, the rectifier of the quick disjunction inductive load of use field effect transistor of the present utility model, the anodal S of its rectifier input power supply
+By after two piezo-resistance R5, the R6 series connection again with the be in parallel cathode output end V of rectifier of diode D2
+The negative pole S of rectifier input power supply
-By arriving the cathode output end V of rectifier after being in parallel with diode D1 again after two piezo-resistance R3, the R4 series connection
+The negative pole S of input power supply
-Also then be connected the grid G of field effect transistor VT1 by being in parallel with capacitor C 2 again after two resistance R 9, the R10 series connection; The negative pole S of input power supply
-The source S that also directly connects field effect transistor VT1; And between the grid G of field effect transistor VT1 and the source S also the parallel connection by resistance R 7, R8 be connected; The drain D of field effect transistor VT1 is the negative pole V-of rectifier output end.Add field effect transistor as mentioned above in the loop of rectifier, when the input of rectifier power supply disconnected, field effect transistor disconnected, and makes the outlet side of rectifier and load can not form the loop, so when the input side rectifier power supply disconnected, inductive load is demagnetization rapidly also.
As shown in Figure 2, also be connected by being in parallel with capacitor C 1 after two piezo-resistance R1, the R2 series connection between the drain D of field effect transistor VT1 of the present utility model and the source S, the surge of inductive load has been protected field effect transistor after disconnecting in order to absorption circuit again.
Claims (2)
1. rectifier that uses the quick disjunction inductive load of field effect transistor, the anodal S of its rectifier input power supply
+By after two piezo-resistance R5, the R6 series connection again with the be in parallel cathode output end V of rectifier of diode D2
+It is characterized in that the negative pole S of rectifier input power supply
-By arriving the cathode output end V of rectifier after being in parallel with diode D1 again after two piezo-resistance R3, the R4 series connection
+The negative pole S of input power supply
-Also then be connected the grid G of field effect transistor VT1 by being in parallel with capacitor C 2 again after two resistance R 9, the R10 series connection; The negative pole S of input power supply
-The source S that also directly connects field effect transistor VT1; And between the grid G of field effect transistor VT1 and the source S also the parallel connection by resistance R 7, R8 be connected; The drain D of field effect transistor VT1 is the negative pole V of rectifier output end
-
2. the rectifier of the quick disjunction inductive load of use field effect transistor according to claim 1 is characterized in that, also is connected by being in parallel with capacitor C 1 after two piezo-resistance R1, the R2 series connection between the drain D of field effect transistor VT1 and the source S again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958980U CN201041987Y (en) | 2007-04-27 | 2007-04-27 | Quick breaking inductive load rectifier using field effect tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200958980U CN201041987Y (en) | 2007-04-27 | 2007-04-27 | Quick breaking inductive load rectifier using field effect tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201041987Y true CN201041987Y (en) | 2008-03-26 |
Family
ID=39253698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200958980U Expired - Lifetime CN201041987Y (en) | 2007-04-27 | 2007-04-27 | Quick breaking inductive load rectifier using field effect tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201041987Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924484B (en) * | 2009-06-16 | 2012-10-03 | 洋鑫科技股份有限公司 | Grid-control bridge rectifier with surge current limiter |
-
2007
- 2007-04-27 CN CNU2007200958980U patent/CN201041987Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924484B (en) * | 2009-06-16 | 2012-10-03 | 洋鑫科技股份有限公司 | Grid-control bridge rectifier with surge current limiter |
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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: TIANJIN YONGHENG TAIKE SCIENCE AND TECHNOLOGY CO., Free format text: FORMER NAME OR ADDRESS: TIANJIN SENJIE DRIVING CONTROL BY POWER SYSTEM TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Tianjin high tech Industrial Park Huayuan (outer ring) K2-10-302 Haitai green industry base, zip code: 300384 Patentee after: Tianjin UHT Science and Technology Co., Ltd. Address before: Tianjin high tech Industrial Park Huayuan (outer ring) K2-10-302 Haitai green industry base, zip code: 300384 Patentee before: Tianjin Industry Control Senjie Drive System Tech. Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070427 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |