GB1028090A - Improvements in or relating to electronic switches - Google Patents
Improvements in or relating to electronic switchesInfo
- Publication number
- GB1028090A GB1028090A GB1296963A GB1296963A GB1028090A GB 1028090 A GB1028090 A GB 1028090A GB 1296963 A GB1296963 A GB 1296963A GB 1296963 A GB1296963 A GB 1296963A GB 1028090 A GB1028090 A GB 1028090A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terminals
- output
- dependence
- transistors
- polarity
- 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
- H03K17/60—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 the devices being bipolar transistors
- H03K17/601—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 the devices being bipolar transistors using transformer coupling
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/20—Repeater circuits; Relay circuits
- H04L25/24—Relay circuits using discharge tubes or semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc-Dc Converters (AREA)
Abstract
1,028,090. Semi-conductor switching circuits. TELEPHONE MANUFACTURING CO. Ltd. March 24, 1964 [April 2, 1963], No. 12969/63. Heading H3T. [Also in Division H2] In an electronic switching arrangement, the output of an oscillator is switched between alternative circuits in dependence upon the polarity of a signal applied to an input stage so as to control operation of two switching devices respectively arranged to provide outputs of opposite sign, the oscillator also supplying power to the input stage. As shown in Fig. 1, telegraph pulses on a line connected to terminals 1, 2 or two lines connected respectively to terminals 1, 3; 2, 3, are fed to the gate electrodes of silicon controlled switches SCS1, SCS2 arranged so that the switch associated with the more positive line is turned on so as to feed the output of an oscillator via transformer T1 either to transformer T2 or T3. The outputs of T2 or T3 are rectified at D3 and D4, the rectified outputs being used to turn on either transistor TR1 or TR2 so as to feed either a positive potential to a line connected between terminals A, D or a negative potential to a line connected to terminals C, D in dependence of the polarity of the input terminals 1, 2. The minimum voltage required to turn on transistors TR1, TR2 is determined by Zener diodes Z1, Z2. The circuit may alternatively be used as a comparator, emitting positive or negative voltage outputs in dependence on the relative polarities of terminals 1, 2. Fig. 2 shows a further arrangement in which the conductive state of transistors V1, V2 of a bi-stable circuit is dependent on the relative polarity of input terminals 1, 2. The conductive states of transistors V3, V4 are in turn controlled by the bi-stable circuit so that the output of a self-oscillating inverter C is fed either to transformer T2 or T3 in dependence upon the relative polarities of terminals 1, 2. The outputs of transformers T2, T3 are rectified at D8 . . . D11 and the resulting D.C. voltage turning on either transistor V7 or V8 so as to feed a positive or negative voltage to output terminal B in dependence upon the polarity of input terminals 1, 2. The self-oscillating inverter C comprises series-connected transistors V5, V6, operating in push-pull and having feedback via the primary windings of transformer T1. The output from the secondary winding of T1 is rectified at D16 so as to provide power supply for the bi-stable circuit V1, V2 and, after stabilization by Zener diode D14 provides bias for transistors V3, V4. Fig. 3 (not shown), relates to an alternative circuit which may be connected to terminals XX, YY in Fig. 2 and comprises two silicon-controlled switches, one or other of which is turned on by the first pulse of a train switched from the inverter C (Fig. 2) so as to feed either a positive or a negative voltage to the output terminals. The respective switch is turned off by action of a capacitor (C7) and an inductor (L11) when the polarity of input terminals 1, 2 becomes reversed. The use of a train of pulses to trigger the switches ensures that if the incorrect switch is turned on by a spurious pulse, the correct switch is turned on by the next pulse of the train.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1296963A GB1028090A (en) | 1963-04-02 | 1963-04-02 | Improvements in or relating to electronic switches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1296963A GB1028090A (en) | 1963-04-02 | 1963-04-02 | Improvements in or relating to electronic switches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1028090A true GB1028090A (en) | 1966-05-04 |
Family
ID=10014427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1296963A Expired GB1028090A (en) | 1963-04-02 | 1963-04-02 | Improvements in or relating to electronic switches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1028090A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229165A1 (en) * | 1973-05-11 | 1974-12-06 | Westinghouse Electric Corp | |
GB2182813A (en) * | 1985-10-21 | 1987-05-20 | American Standard Inc | Interface driver circuit |
GB2204455A (en) * | 1987-05-07 | 1988-11-09 | Nishimu Denshi Kogyo Kk | Dc to dc converter |
CN112350553A (en) * | 2020-12-03 | 2021-02-09 | 核工业理化工程研究院 | Silicon controlled rectifier controller for frequency converter |
-
1963
- 1963-04-02 GB GB1296963A patent/GB1028090A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229165A1 (en) * | 1973-05-11 | 1974-12-06 | Westinghouse Electric Corp | |
GB2182813A (en) * | 1985-10-21 | 1987-05-20 | American Standard Inc | Interface driver circuit |
US4763017A (en) * | 1985-10-21 | 1988-08-09 | American Standard Inc. | Electronic bipolar interface circuit |
GB2182813B (en) * | 1985-10-21 | 1989-09-20 | American Standard Inc | Interface driver circuit |
GB2204455A (en) * | 1987-05-07 | 1988-11-09 | Nishimu Denshi Kogyo Kk | Dc to dc converter |
GB2204455B (en) * | 1987-05-07 | 1991-06-19 | Nishimu Denshi Kogyo Kk | Switching power source device |
CN112350553A (en) * | 2020-12-03 | 2021-02-09 | 核工业理化工程研究院 | Silicon controlled rectifier controller for frequency converter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4151425A (en) | Voltage sequencing circuit for sequencing voltages to an electrical device | |
EP0693825A1 (en) | Apparatus and method for generating negative bias for isolated mosfet gate-drive circuits | |
GB1427065A (en) | Excess voltage protective circuits | |
GB1175837A (en) | Improvements in or relating to Direct Current Supply Circuit Arrangements | |
GB1387486A (en) | Transistor switching circuit | |
ES430226A1 (en) | Drive circuit for a controllable electronic switching element, for example, a power transistor | |
US4315307A (en) | Switching device and switched-type power supply using the same | |
GB1028090A (en) | Improvements in or relating to electronic switches | |
GB1104212A (en) | Improvements in or relating to telegraph signal converters | |
US4908857A (en) | Isolated drive circuit | |
GB2105927A (en) | A switching circuit | |
GB916350A (en) | Bi-stable trigger network | |
US3530368A (en) | Stabilisers | |
GB1166357A (en) | Improvements in or relating to Electronic Switching Circuit Arrangements. | |
KR970707635A (en) | A circuitry apparatus for multiple use of transformer core | |
GB1099485A (en) | Electronic switch arrangement | |
US3210690A (en) | Controlled frequency static inverter | |
GB1031462A (en) | Voltage stabilisers | |
US3793580A (en) | D. c. static switch circuit with a main switch device and a power sharing circuit portion | |
GB1113411A (en) | Method and apparatus for rapidly establishing a current in a coil | |
GB1001845A (en) | Multi-phase circuit for generating rectangular pulses | |
SU1314439A1 (en) | Two-step power amplifier | |
SU1127075A1 (en) | Switch-type power amplifier | |
GB950186A (en) | Improvements in or relating to electrical inverter arrangements | |
GB1206132A (en) | A circuit arrangement for reducing power dissipation or stressing |