GB900236A - Improvements in protective circuits for transistor equipment - Google Patents
Improvements in protective circuits for transistor equipmentInfo
- Publication number
- GB900236A GB900236A GB1615460A GB1615460A GB900236A GB 900236 A GB900236 A GB 900236A GB 1615460 A GB1615460 A GB 1615460A GB 1615460 A GB1615460 A GB 1615460A GB 900236 A GB900236 A GB 900236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- transistor
- breaker
- capacitor
- load
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
- G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
- G05F1/573—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overcurrent detector
Landscapes
- Engineering & Computer Science (AREA)
- Emergency Protection Circuit Devices (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
Abstract
900,236. Protective cut-out arrangements. STANDARD TELEPHONES & CABLES Ltd. May 6, 1960 [May 11, 1959], No. 16154/60. Class 38 (5). A protective arrangement for a transistor through which a load current flows, e.g. a transistor voltage regulator 5, comprises a circuit-breaker 6 connected in the load circuit after the transistor and a capacitor C2 connected across the load circuit after the transistor and before the circuit-breaker, the capacitor C2 having a sufficiently large capacitance that the circuit-breaker has time to operate before the discharge of the capacitor C2 though a short-circuit path permits an excessive voltage to appear across the transistor. Thus in the arrangement shown, in the event of a short circuit between the output terminals 3, 4, the normally charged capacitor C2 discharges through the circuit-breaker and the fault path and prevents the instantaneous application of the full D.C. supply voltage to input terminals 1, 2 across the transistor voltage regulator 5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU48679/59A AU232425B2 (en) | 1959-05-11 | Improvements in protective circuits for transistor equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB900236A true GB900236A (en) | 1962-07-04 |
Family
ID=3735398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1615460A Expired GB900236A (en) | 1959-05-11 | 1960-05-06 | Improvements in protective circuits for transistor equipment |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB900236A (en) |
-
1960
- 1960-05-06 GB GB1615460A patent/GB900236A/en not_active Expired
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