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Class Information
Number: 363/56.08
Name: Electric power conversion systems > Current conversion > Including automatic or integral protection means > For inverters > Transistor inverter > Double-ended type > Having voltage protection
Description: Subject matter including protection from an abnormal or unsafe voltage condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7554820 |
Series resonant DC-DC converter |
Jun. 30, 2009 |
| 7529109 |
Driving circuit for switching DC power |
May. 5, 2009 |
| 7492618 |
Inverter device |
Feb. 17, 2009 |
| 7180759 |
Push-pull inverter with snubber energy recovery |
Feb. 20, 2007 |
| 7116565 |
Over-power protection apparatus for self-excited power converter |
Oct. 3, 2006 |
| 6954364 |
Backlight inverter for liquid crystal display panel with self-protection function |
Oct. 11, 2005 |
| 6469915 |
Resonant reset dual switch forward DC-to-DC converter |
Oct. 22, 2002 |
| 6407937 |
Active overvoltage protection apparatus for a bidirectional power switch in common collector mode |
Jun. 18, 2002 |
| 6349044 |
Zero voltage zero current three level DC-DC converter |
Feb. 19, 2002 |
| 6055161 |
Switching type power supply for arc welding |
Apr. 25, 2000 |
| 5841646 |
Resonance inverter power supply control device including transistor switch-over decision signals |
Nov. 24, 1998 |
| 5761055 |
Driving pulse output limiting circuit |
Jun. 2, 1998 |
| 5677831 |
Expandable uninterruptible power supply system |
Oct. 14, 1997 |
| 5673188 |
Zero voltage switching series resonant half bridge VHF inverter |
Sep. 30, 1997 |
| 5488554 |
Low-loss clamp circuit |
Jan. 30, 1996 |
| 5353214 |
Neon circuit including a protective structure |
Oct. 4, 1994 |
| 5014176 |
Switching converter with spike limiting circuit |
May. 7, 1991 |
| 4941076 |
Start-up circuit for a high voltage DC to AC converter |
Jul. 10, 1990 |
| 4937726 |
High forward blocking voltage protection circuit |
Jun. 26, 1990 |
| 4920471 |
AC high voltage power supply |
Apr. 24, 1990 |
| 4855891 |
Power supply design |
Aug. 8, 1989 |
| 4843532 |
Regulating pulse width modulator for power supply with high speed shutoff |
Jun. 27, 1989 |
| 4782436 |
Apparatus and method for balancing output current of transistors |
Nov. 1, 1988 |
| 4717996 |
Gated parallel power switching devices protection circuit |
Jan. 5, 1988 |
| 4639845 |
Voltage inverter |
Jan. 27, 1987 |
| 4607322 |
Energy recovery snubber |
Aug. 19, 1986 |
| 4550359 |
Voltage transient protection circuit for MOSFET power transistors |
Oct. 29, 1985 |
| 4471422 |
Dc-to-ac Inverter |
Sep. 11, 1984 |
| 4464709 |
Current and voltage protection for a power supply circuit |
Aug. 7, 1984 |
| 4439822 |
Method and apparatus for detecting and preventing impending magnetic saturation in magnetic materials |
Mar. 27, 1984 |
| 4429359 |
Inverter circuit with symmetry control |
Jan. 31, 1984 |
| 4384320 |
Push-pull switching mode inverter-type power supply |
May. 17, 1983 |
| 4359679 |
Switching d-c. regulator and load-sharing system for multiple regulators |
Nov. 16, 1982 |
| 4276588 |
Push-pull converter with energy saving circuit for protecting switching transistors from peak power stress |
Jun. 30, 1981 |
| 4159515 |
Inverter control system |
Jun. 26, 1979 |
| 4158224 |
Inverter apparatus |
Jun. 12, 1979 |
| 4073004 |
Power supply with voltage protection circuit |
Feb. 7, 1978 |
| 4044294 |
Converter-regulator circuit arrangement |
Aug. 23, 1977 |
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