GB1201951A - Improvements in voltage regulators - Google Patents
Improvements in voltage regulatorsInfo
- Publication number
- GB1201951A GB1201951A GB4619967A GB4619967A GB1201951A GB 1201951 A GB1201951 A GB 1201951A GB 4619967 A GB4619967 A GB 4619967A GB 4619967 A GB4619967 A GB 4619967A GB 1201951 A GB1201951 A GB 1201951A
- Authority
- GB
- United Kingdom
- Prior art keywords
- regulator
- transistor
- oct
- error amplifier
- circuit
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
Abstract
1,201,951. Automatic voltage control. AMPEX ELECTRONICS Ltd. Oct.9, 1968 [Oct.10, 1967], No.46199/67. Heading G3R. A voltage regulator of the type including a series transistor Q1 controlled by an error amplifier transistor Q2 is provided with a further transistor Q3 connected into the circuit together with resistors R1, R3, as illustrated; the Specification shows that this arrangement provides a low impedance in the input circuit of the regulator to reduce the effect of variations in the unregulated input voltage and provides a high impedance load for the error amplifier, thus improving the operation of the regulator. The series regulating element may be formed by a pair of transistors, and the regulator may include a simple constant current circuit to assist the action of the further transistor, Fig.3 (not shown).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4619967A GB1201951A (en) | 1967-10-10 | 1967-10-10 | Improvements in voltage regulators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4619967A GB1201951A (en) | 1967-10-10 | 1967-10-10 | Improvements in voltage regulators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1201951A true GB1201951A (en) | 1970-08-12 |
Family
ID=10440256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4619967A Expired GB1201951A (en) | 1967-10-10 | 1967-10-10 | Improvements in voltage regulators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1201951A (en) |
-
1967
- 1967-10-10 GB GB4619967A patent/GB1201951A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |