GB985312A - Improvements in and relating to electronic waveform generators - Google Patents
Improvements in and relating to electronic waveform generatorsInfo
- Publication number
- GB985312A GB985312A GB1652660A GB1652660A GB985312A GB 985312 A GB985312 A GB 985312A GB 1652660 A GB1652660 A GB 1652660A GB 1652660 A GB1652660 A GB 1652660A GB 985312 A GB985312 A GB 985312A
- Authority
- GB
- United Kingdom
- Prior art keywords
- load
- half cycle
- scr1
- silicon controlled
- transistors
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
-
- 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
- H03K17/73—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 for dc voltages or currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
- Ac-Ac Conversion (AREA)
Abstract
985,312. Inverting. TEXAS INSTRUMENTS Ltd. May 10, 1961 [May 10, 1960], No. 16526/60. Heading H2F. [Also in Division H3] An inverter or amplifier comprises a pair of silicon controlled rectifiers SCR1,: SCR2 (or combinations of transistors which operate analogously to silicon controlled rectifiers) having anode resistors R1, R2 and connected in series between positive and negative D.C. terminals P, N, the junction A being connected to earth O through a load S and the two rectifiers being controlled to be conductive alternately so that A.C. flows in the load. The control circuit includes transistors VT1, VT2, connected in series with resistors R8, R10, between terminals P and N, and rendered conductive by a square wave signal applied to a transformer T1. On the positive half cycle transistor VT2 and rectifier SCR1 are conducting. On the next negative half cycle transistor VT2 is switched off and VT1 is switched on. The potential at point B rises to the level P and this is transferred through capacitor C5 to the point A switching off SCR1 whose anode potential rises providing, through a delay circuit R3, C2, a firing signal for SCR2. The operation is reversed for the next half cycle. The load may be inductive, e.g. a motor winding, or resistive when the arrangement may be used as a linear amplifier. The silicon controlled rectifiers may be replaced by pairs of complementary PNP,NPN transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1652660A GB985312A (en) | 1960-05-10 | 1960-05-10 | Improvements in and relating to electronic waveform generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1652660A GB985312A (en) | 1960-05-10 | 1960-05-10 | Improvements in and relating to electronic waveform generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB985312A true GB985312A (en) | 1965-03-10 |
Family
ID=10078925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1652660A Expired GB985312A (en) | 1960-05-10 | 1960-05-10 | Improvements in and relating to electronic waveform generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB985312A (en) |
-
1960
- 1960-05-10 GB GB1652660A patent/GB985312A/en not_active Expired
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