GB1143687A - - Google Patents
Info
- Publication number
- GB1143687A GB1143687A GB1143687DA GB1143687A GB 1143687 A GB1143687 A GB 1143687A GB 1143687D A GB1143687D A GB 1143687DA GB 1143687 A GB1143687 A GB 1143687A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supply
- load
- oscillator
- dec
- conduct
- 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
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
- H03K17/722—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region with galvanic isolation between the control circuit and the output circuit
- H03K17/723—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region with galvanic isolation between the control circuit and the output circuit using transformer coupling
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electronic Switches (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
1,143,687. Road-traffic signalling apparatus. E. W. BLISS CO. 5 Dec., 1967 [7 Dec., 1966], 55202/67. Heading G4Q. [Also in Divisions H2 and H3] Simultaneous energization of load A and load B from a common A.C. supply V is prevented by an anti-coincidence circuit adapted to interrupt the A.C. supply. The loads may be road traffic signal lamps energized through respective switches S1 and S2, which may be relays or transistors, and each load circuit includes a bidirectional semi-conductor device 76 which is maintained conductive by oscillations from oscillator H. If both switches S1 and S2 are closed simultaneously, the A.C. supply is connected to rectifier 24 in units C and D, thereby making both transistors 10 conduct; this causes transistor 36 (unit F) to cut off and transistor 44 (unit G) to conduct, thereby preventing the RC oscillator H from oscillating. This prevents each SCR 72 in units I and J from conducting and thereby interrupts the A.C. supply through diode bridge 74 to the gate electrode 104 of the semi-conductor 76 which is therefore blocked and inhibits energization of the load.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59993266A | 1966-12-07 | 1966-12-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1143687A true GB1143687A (en) | 1900-01-01 |
Family
ID=24401709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1143687D Expired GB1143687A (en) | 1966-12-07 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3457430A (en) |
DE (1) | DE1537043A1 (en) |
FR (1) | FR1562854A (en) |
GB (1) | GB1143687A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4490771A (en) * | 1981-12-09 | 1984-12-25 | Black & Decker Inc. | Control circuit arrangement for an electromagnetically operated power tool |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3515998A (en) * | 1967-12-08 | 1970-06-02 | Ibm | Real-time detection of latch resolution using threshold means |
US3543139A (en) * | 1968-08-21 | 1970-11-24 | Electronic Associates | Multiple regulated outputs in a single pulse regulator |
US3801832A (en) * | 1969-06-02 | 1974-04-02 | Philips Corp | Solid-state relay |
US3806739A (en) * | 1971-06-02 | 1974-04-23 | Matsushita Electric Ind Co Ltd | Contactless switch |
US3740587A (en) * | 1971-09-20 | 1973-06-19 | Gen Electric | Solid state unipole relay |
FR2206609B1 (en) * | 1972-11-15 | 1975-11-07 | Trt Telecom Radio Electr | |
US4242554A (en) * | 1978-05-31 | 1980-12-30 | General Electric Company | Effective time ratio browning in a microwave oven employing high thermal mass browning unit |
US4227062A (en) * | 1978-05-31 | 1980-10-07 | General Electric Company | Optimum time ratio control system for microwave oven including food surface browning capability |
US4188520A (en) * | 1978-05-31 | 1980-02-12 | General Electric Company | Effective concurrent microwave heating and electrical resistance heating in a countertop microwave oven |
US4196330A (en) * | 1978-06-01 | 1980-04-01 | General Electric Company | Combination oven fully utilizing the current-supplying capability of a power source |
US4198553A (en) * | 1978-06-01 | 1980-04-15 | General Electric Company | Combination oven fully utilizing the capability of a limited power source |
WO1981000795A1 (en) * | 1979-09-11 | 1981-03-19 | Towmotor Corp | Method of and means for controlling electrical devices |
US4564733A (en) * | 1983-08-11 | 1986-01-14 | Whirlpool Corporation | Current limiting control circuit for induction range |
US4876468A (en) * | 1986-10-16 | 1989-10-24 | Square D Company | Thyristor driver turn-off circuit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE26150E (en) * | 1958-07-03 | 1967-01-31 | Traffic controllers khfi.oy i.ng static, logic control lllwlnts | |
US3107306A (en) * | 1959-07-01 | 1963-10-15 | Westinghouse Electric Corp | Anticoincident pulse responsive circuit comprising logic components |
US3240948A (en) * | 1962-06-29 | 1966-03-15 | Johnson Service Co | Electronic control responsive to opposite senses of condition deviation |
US3278758A (en) * | 1962-12-17 | 1966-10-11 | Int Standard Electric Corp | Anti-coincidence logic circuits |
US3337741A (en) * | 1964-10-14 | 1967-08-22 | Systems Matrix Inc | Semiconductor-controlled power circuit having a single-pole, doublethrow switching action |
-
0
- GB GB1143687D patent/GB1143687A/en not_active Expired
-
1966
- 1966-12-07 US US599932A patent/US3457430A/en not_active Expired - Lifetime
-
1967
- 1967-11-30 DE DE19671537043 patent/DE1537043A1/en active Pending
- 1967-12-01 FR FR1562854D patent/FR1562854A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4490771A (en) * | 1981-12-09 | 1984-12-25 | Black & Decker Inc. | Control circuit arrangement for an electromagnetically operated power tool |
Also Published As
Publication number | Publication date |
---|---|
DE1537043A1 (en) | 1969-12-04 |
US3457430A (en) | 1969-07-22 |
FR1562854A (en) | 1969-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1143687A (en) | ||
US7928702B2 (en) | Driving circuit for use with high voltage depletion-mode semiconductor switches | |
JPH099608A (en) | Driving method and circuit of power transistor allowing exessive minus vibration of output node as well as integrated circuit built-in the circuit | |
KR840006886A (en) | Control device of power converter | |
EP0317222B1 (en) | Voltage divider circuits | |
US3979698A (en) | Crystal oscillator circuit | |
JPS6412413B2 (en) | ||
US4767950A (en) | MOS inverter circuit having two different supply voltages | |
US6426857B1 (en) | Protective circuit for a power field-effect transistor | |
KR850006902A (en) | Voltage level detection circuit | |
JPH1154711A (en) | Electrostatic protection circuit for semiconductor device | |
KR920020511A (en) | Output buffer circuit | |
KR890001325A (en) | Bus Transmitter with Controlled Trapezoid Turnover | |
KR870001709B1 (en) | Digital input circuit | |
KR920004914B1 (en) | Isolation switch circuit | |
JP2000253560A (en) | Power supply breaker device | |
SE323988B (en) | Discriminator device | |
GB955720A (en) | Improvements in or relating to switching circuit arrangements | |
JPH08163861A (en) | Dive circuit for self-extinguishing semiconductor | |
JP2550810Y2 (en) | Integrated circuit | |
JPH04215113A (en) | Power-on reset circuit | |
KR830008452A (en) | Transistor Inverter Device | |
GB1082483A (en) | Improvements in or relating to relays or repeater devices | |
US666067A (en) | Alarm-signal. | |
JPH0316427A (en) | Input device for serving also as output device |