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Class Information
Number: 363/21.1
Name: Electric power conversion systems > Current conversion > Including d.c.-a.c.-d.c. converter > Having transistorized inverter > Single-ended, separately-driven type > With automatic control of the magnitude of output voltage or current > For forward-type converter > Utilizing pulse-width modulation
Description: Subject matter wherein the switch control means includes means to vary the conduction/non-conduction duty cycle of the transistor switch means to control the rectifier output current or voltage.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4774584 |
High-voltage power supply for a picture tube |
Sep. 27, 1988 |
| 4772995 |
Switching supply with pulse width and rate modulation |
Sep. 20, 1988 |
| 4763238 |
Extended overload protection circuit for a switch mode power supply having cycle detector, memory and flip-flop inhibition |
Aug. 9, 1988 |
| 4761702 |
CMOS latch-up recovery circuit |
Aug. 2, 1988 |
| 4740880 |
Blocking oscillator-switched power supply with peak current reduction circuitry |
Apr. 26, 1988 |
| 4740877 |
Power supply drive circuit improvement |
Apr. 26, 1988 |
| 4740879 |
Blocking oscillator switched power supply with standby circuitry |
Apr. 26, 1988 |
| 4731720 |
High-voltage power source apparatus |
Mar. 15, 1988 |
| 4725936 |
High-voltage stabilizing power supply apparatus with an improved inductive noise compensation |
Feb. 16, 1988 |
| 4709315 |
Isolated controller circuit |
Nov. 24, 1987 |
| 4706176 |
Clocked direct voltage converter |
Nov. 10, 1987 |
| 4695935 |
Power supply |
Sep. 22, 1987 |
| 4695936 |
Switching mode power supply start circuit |
Sep. 22, 1987 |
| 4691159 |
Partial shunt switching limiter for a spacecraft solar-panel or like power-source array |
Sep. 1, 1987 |
| 4680688 |
DC/DC converter |
Jul. 14, 1987 |
| 4669039 |
Circuit arrangement for autoconverters |
May. 26, 1987 |
| 4658341 |
Regulated DC power supply |
Apr. 14, 1987 |
| 4648016 |
Blocking oscillator switched mode power supply |
Mar. 3, 1987 |
| 4646219 |
Intrinsically safe power supply with a current regulator |
Feb. 24, 1987 |
| 4642745 |
Power circuit with high input power factor and a regulated output |
Feb. 10, 1987 |
| 4631654 |
Two-state switched-mode power supply |
Dec. 23, 1986 |
| 4628426 |
Dual output DC-DC converter with independently controllable output voltages |
Dec. 9, 1986 |
| 4623960 |
Bias power source energized by tertiary winding including hysteresis characteristic for disabling the power switch when a minimum base drive signal can no longer be maintained |
Nov. 18, 1986 |
| 4595974 |
Base drive circuit for a switching power transistor |
Jun. 17, 1986 |
| 4593347 |
Blocking oscillator switched mode power supply |
Jun. 3, 1986 |
| 4578758 |
Electronic postage meter having a regulated power supply system responsive to a voltage developed in a transformer primary winding circuit |
Mar. 25, 1986 |
| 4562523 |
Power supply |
Dec. 31, 1985 |
| 4561046 |
Single transistor forward converter with lossless magnetic core reset and snubber network |
Dec. 24, 1985 |
| 4559591 |
D.C. voltage converter including a pulse width controlled semiconductor switch |
Dec. 17, 1985 |
| 4486823 |
Circuit for converting an input d.c. voltage into an output d.c. voltage |
Dec. 4, 1984 |
| 4438411 |
Temperature compensating method and apparatus for thermally stabilizing amplifier devices |
Mar. 20, 1984 |
| 4425611 |
Switching voltage regulators with output voltages indirectly regulated respective to directly regulated boosted input voltages |
Jan. 10, 1984 |
| 4420804 |
Switching regulator with base charge removal circuit |
Dec. 13, 1983 |
| 4389702 |
Switching power supply circuit having constant output for a wide range of input voltage |
Jun. 21, 1983 |
| 4371919 |
Load distribution among parallel DC-DC converters |
Feb. 1, 1983 |
| 4371917 |
Voltage conversion method |
Feb. 1, 1983 |
| 4353113 |
Switch mode converters |
Oct. 5, 1982 |
| 4331912 |
Circuit for converting a non-live zero current signal to a live zero DC output signal |
May. 25, 1982 |
| 4330816 |
Overcurrent protection apparatus |
May. 18, 1982 |
| 4328537 |
Circuit arrangement for limiting and regulating the collector current of the control element transistor of a switching network component |
May. 4, 1982 |
| 4318164 |
High frequency switching circuit having preselected parameters to reduce power dissipation therein |
Mar. 2, 1982 |
| 4312029 |
DC-to-DC Converter with reduced power loss during turn off |
Jan. 19, 1982 |
| 4290101 |
N Phase digital inverter |
Sep. 15, 1981 |
| 4253137 |
Switched-mode power supply |
Feb. 24, 1981 |
| 4236196 |
Switching regulator |
Nov. 25, 1980 |
| 4236198 |
Switching regulator |
Nov. 25, 1980 |
| 4220987 |
Converter drive circuit |
Sep. 2, 1980 |
| 4209826 |
Regulated switching mode power supply |
Jun. 24, 1980 |
| 4195333 |
DC to DC voltage converter |
Mar. 25, 1980 |
| 4058758 |
Cooperative primary and secondary current limiting to selectively limit aggregate and individual current outputs of a multi output converter |
Nov. 15, 1977 |
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