GB1059857A - Means for protecting semi-conductor elements of pnpn-type in regulators - Google Patents
Means for protecting semi-conductor elements of pnpn-type in regulatorsInfo
- Publication number
- GB1059857A GB1059857A GB2421464A GB2421464A GB1059857A GB 1059857 A GB1059857 A GB 1059857A GB 2421464 A GB2421464 A GB 2421464A GB 2421464 A GB2421464 A GB 2421464A GB 1059857 A GB1059857 A GB 1059857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- impedance
- protecting
- thyristor
- arrangement
- Prior art date
- 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
Links
Classifications
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
1,059,857. Protecting semi-conductor circuits. ALLMANNA SVENSKA ELEKTRISKA A.B. June 11, 1964 [June 12, 1963], No. 24214/64. Heading H3T. [Also in Division G3] An arrangement for protecting a thyristor against overvoltages comprises a voltage divider including an impedance 7, which, when a transient appears fires the thyristor due to the non- proportionate voltage distribution, hence transferring the voltage to the load. The impedance 7 may be a resistor or the secondary winding of a transformer to which the control pulses are fed. In an alternative arrangement (Fig. 4, not shown), an impedance is in series with the cathode, the voltage rise across which is fed to the firing device 5 to render the thyristor conductive. The arrangement shown is applicable to a control circuit where the device 5 normally maintains the voltage across the load 2 constant.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE645863 | 1963-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1059857A true GB1059857A (en) | 1967-02-22 |
Family
ID=20268746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2421464A Expired GB1059857A (en) | 1963-06-12 | 1964-06-11 | Means for protecting semi-conductor elements of pnpn-type in regulators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1059857A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2436500A1 (en) * | 1978-09-18 | 1980-04-11 | Siemens Ag | Power semiconductor protection against supply voltage transients - is performed by inductance and capacitor connected to load and gate (OE 15.12.79) |
| FR2448805A1 (en) * | 1979-02-08 | 1980-09-05 | Silicium Semiconducteur Ssc | Light dimmer circuit with series triac and inductor - is shunted by oscillation suppressing capacitor in series with resistive voltage divider |
-
1964
- 1964-06-11 GB GB2421464A patent/GB1059857A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2436500A1 (en) * | 1978-09-18 | 1980-04-11 | Siemens Ag | Power semiconductor protection against supply voltage transients - is performed by inductance and capacitor connected to load and gate (OE 15.12.79) |
| FR2448805A1 (en) * | 1979-02-08 | 1980-09-05 | Silicium Semiconducteur Ssc | Light dimmer circuit with series triac and inductor - is shunted by oscillation suppressing capacitor in series with resistive voltage divider |
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