SU666604A1 - Arrangement for thermal protection of three-electrode semiconductor devices - Google Patents
Arrangement for thermal protection of three-electrode semiconductor devicesInfo
- Publication number
- SU666604A1 SU666604A1 SU772555504A SU2555504A SU666604A1 SU 666604 A1 SU666604 A1 SU 666604A1 SU 772555504 A SU772555504 A SU 772555504A SU 2555504 A SU2555504 A SU 2555504A SU 666604 A1 SU666604 A1 SU 666604A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- semiconductor devices
- arrangement
- thermal protection
- electrode semiconductor
- transistor
- Prior art date
Links
Landscapes
- Protection Of Static Devices (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
(54) УСТРОЙСТВО ТЕПЛОВОЙ ЗАЩИТЫ ТРЕХЭЛЕКТРОДНЫХ ПОЛУПРОВОДНИКОВЫХ ПРИБОРОВ(54) DEVICE OF THERMAL PROTECTION OF THREE-ELECTRODE SEMICONDUCTOR DEVICES
транзистора; perynHpyeittae резисторы дл изменени в небольших пределах порогового значени максимальной температуры.transistor; perynHpyeittae resistors for varying in a small range the threshold value of the maximum temperature.
При протекании силового тока че реэ параллельно соединенные транзисторы за счет различных параметров транзисторов и неравномерности распределени тока температура кристалла 1 и его охлаждающей подложки повыситс до значени , при котором транзистор, укрепленный на этой же подложке вблизи транзистора 1,начинает тер ть свои запирающие свойства и тем cavpJM шунтировать управл ющий переход силового транзистора. В результате происходит уменьшение тока базы и, соответственно, коллекторного тока силового транзистора до значени , при котором теплова мощность, выдел ема на транзисторе , остаетс посто нной при заданной .системе охлаждени .When a power current flows through a ree parallel connected transistors due to different parameters of the transistors and the uneven distribution of the current, the temperature of the crystal 1 and its cooling substrate increases to a value at which the transistor mounted on the same substrate near transistor 1 begins to lose its locking properties cavpJM shunt the control junction of the power transistor. As a result, the base current and, correspondingly, the collector current of the power transistor decrease to a value at which the thermal power allocated to the transistor remains constant for a given cooling system.
Таким образом, происходит автоматическое выравнивание токов между параллельно включенными транзисторами .Thus, there is an automatic alignment of currents between parallel-connected transistors.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772555504A SU666604A1 (en) | 1977-12-15 | 1977-12-15 | Arrangement for thermal protection of three-electrode semiconductor devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772555504A SU666604A1 (en) | 1977-12-15 | 1977-12-15 | Arrangement for thermal protection of three-electrode semiconductor devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU666604A1 true SU666604A1 (en) | 1979-06-05 |
Family
ID=20738242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772555504A SU666604A1 (en) | 1977-12-15 | 1977-12-15 | Arrangement for thermal protection of three-electrode semiconductor devices |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU666604A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706177A (en) * | 1985-11-14 | 1987-11-10 | Elliot Josephson | DC-AC inverter with overload driving capability |
-
1977
- 1977-12-15 SU SU772555504A patent/SU666604A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706177A (en) * | 1985-11-14 | 1987-11-10 | Elliot Josephson | DC-AC inverter with overload driving capability |
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