GB950183A - Improvements in and relating to electrical circuits employing transistor networks - Google Patents
Improvements in and relating to electrical circuits employing transistor networksInfo
- Publication number
- GB950183A GB950183A GB39319/63A GB3931963A GB950183A GB 950183 A GB950183 A GB 950183A GB 39319/63 A GB39319/63 A GB 39319/63A GB 3931963 A GB3931963 A GB 3931963A GB 950183 A GB950183 A GB 950183A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- transistor
- electrical circuits
- circuits employing
- june
- 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
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
- H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices
- H03F3/3455—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices with junction-FET's
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
- H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
- H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
- H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
- H03K3/2893—Bistables with hysteresis, e.g. Schmitt trigger
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electronic Switches (AREA)
Abstract
950,183. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. June 9, 1960 [June 11, 1959], No. 39319/63. Divided out of 950,182. Heading H2K. [Also in Division H3] In a time-overcurrent relay circuit, a signal representative of the overcurrent is applied through a time delay network R1C to a unipolar transistor having a Zener diode in its source electrode circuit so that if the signal exceeds the breakdown voltage of the diode for a given time the transistor conducts. The resulting voltage across the load resistor R3 causes the transistor T2 of a trigger circuit R2, T3 to conduct and so to operate a relay A.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA701637T | |||
GB20034/59A GB950182A (en) | 1959-06-11 | 1959-06-11 | Improvements in and relating to electrical circuits employing transistor networks |
NL1127407X | 1960-04-28 | ||
NL250981 | 1960-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB950183A true GB950183A (en) | 1964-02-19 |
Family
ID=76269552
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20034/59A Expired GB950182A (en) | 1959-06-11 | 1959-06-11 | Improvements in and relating to electrical circuits employing transistor networks |
GB39319/63A Expired GB950183A (en) | 1959-06-11 | 1959-06-11 | Improvements in and relating to electrical circuits employing transistor networks |
GB14915/61A Expired GB936756A (en) | 1959-06-11 | 1961-04-25 | Improvements in or relating to loudspeaking telephone systems |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20034/59A Expired GB950182A (en) | 1959-06-11 | 1959-06-11 | Improvements in and relating to electrical circuits employing transistor networks |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14915/61A Expired GB936756A (en) | 1959-06-11 | 1961-04-25 | Improvements in or relating to loudspeaking telephone systems |
Country Status (6)
Country | Link |
---|---|
JP (3) | JPS384353B1 (en) |
CA (1) | CA701637A (en) |
DE (2) | DE1141333B (en) |
FR (2) | FR1259724A (en) |
GB (3) | GB950182A (en) |
NL (1) | NL250981A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3373295A (en) * | 1965-04-27 | 1968-03-12 | Aerojet General Co | Memory element |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH407212A (en) * | 1963-08-29 | 1966-02-15 | Siemens Ag Albis | Amplitude discriminator with a bistable circuit |
SE435679B (en) * | 1980-09-17 | 1984-10-15 | Landskrona Finans Ab | STIMULATOR SYSTEM, INCLUDING ONE OF A RECHARGEABLE BATTERY DRIVE PULSE GENERATOR |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1048946B (en) * | 1957-07-19 | 1959-01-22 | Siemens Ag | Circuit arrangement for controlling the power supply to a consumer with, in particular, an inductive reactance component by means of a transistor |
-
0
- CA CA701637A patent/CA701637A/en not_active Expired
- NL NL250981D patent/NL250981A/xx unknown
-
1959
- 1959-06-11 GB GB20034/59A patent/GB950182A/en not_active Expired
- 1959-06-11 GB GB39319/63A patent/GB950183A/en not_active Expired
- 1959-08-27 JP JP2750859A patent/JPS384353B1/ja active Pending
-
1960
- 1960-06-10 DE DEE19460A patent/DE1141333B/en active Pending
- 1960-06-10 FR FR829644A patent/FR1259724A/en not_active Expired
- 1960-06-10 JP JP2719260A patent/JPS384354B1/ja active Pending
-
1961
- 1961-04-25 GB GB14915/61A patent/GB936756A/en not_active Expired
- 1961-04-25 DE DEN19939A patent/DE1127407B/en active Pending
- 1961-04-27 FR FR860009A patent/FR1287248A/en not_active Expired
-
1963
- 1963-04-22 JP JP1952163A patent/JPS3819521B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3373295A (en) * | 1965-04-27 | 1968-03-12 | Aerojet General Co | Memory element |
Also Published As
Publication number | Publication date |
---|---|
FR1287248A (en) | 1962-03-09 |
FR1259724A (en) | 1961-04-28 |
JPS3819521B1 (en) | 1963-09-26 |
DE1127407B (en) | 1962-04-12 |
GB936756A (en) | 1963-09-11 |
CA701637A (en) | 1965-01-12 |
JPS384353B1 (en) | 1963-02-24 |
GB950182A (en) | 1964-02-19 |
DE1141333B (en) | 1962-12-20 |
JPS384354B1 (en) | 1963-04-24 |
NL250981A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB897891A (en) | Improvements in or relating to overload voltage protection systems | |
GB1031465A (en) | Alternating current overload protection circuits | |
GB1394242A (en) | Circuit arrangement including an inductive load circuit which is provided with a switching transistor for switching on and off the load current therein | |
GB1142783A (en) | Improvements relating to protective arrangements including electric level-responsive circuits | |
GB981752A (en) | Improvements in or relating to electrical protective relays | |
GB950183A (en) | Improvements in and relating to electrical circuits employing transistor networks | |
JPS52127149A (en) | Semiconductor circuit | |
GB925027A (en) | A protective circuit arrangement for transistors | |
GB1062854A (en) | Improvements in circuits for protecting electrical power sources | |
GB1031467A (en) | Overload protection clrcuit | |
GB927468A (en) | A power dissipation protection (or reducing) circuit for transistor switches having inductive loads | |
GB1323767A (en) | Arrangement for the synthetic testing of the breaking capacity of high-voltage power circuit-breakers | |
GB1069626A (en) | Improvements in electrical overload-protection systems | |
GB1022532A (en) | Direct current interrupting arrangement | |
GB1221291A (en) | Improvements relating to the synthetic testing of circuit-breakers | |
GB886008A (en) | Electro-magnetic relay circuits | |
GB902751A (en) | Improvements in or relating to electronic relay devices | |
GB1251942A (en) | ||
GB1011127A (en) | Improvements relating to electrical protective circuits | |
GB881127A (en) | Improvements in or relating to transistor circuits | |
GB957803A (en) | Improvements in or relating to signalling receivers | |
GB900236A (en) | Improvements in protective circuits for transistor equipment | |
AU249217B2 (en) | Electrical homopolar-type generators and current regulating circuit arrangements incorporating same | |
GB980200A (en) | A transistor pulse generator circuit | |
GB839538A (en) | Improvements relating to lamp signalling in telephone switchboards |