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Class Information
Number: 363/56.05
Name: Electric power conversion systems > Current conversion > Including automatic or integral protection means > For inverters > Transistor inverter > Bridge type > Having voltage protection
Description: Subject matter including protection from an abnormal or unsafe voltage condition.


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7599203 Power semiconductor device Oct. 6, 2009
7586760 Snubber capacitor resetting in a DC-to-DC converter Sep. 8, 2009
7586770 Interconnection inverter device Sep. 8, 2009
7535189 Motor drive circuit May. 19, 2009
7531970 Power source driving circuits and controllers thereof May. 12, 2009
7492618 Inverter device Feb. 17, 2009
7405955 Switching power supply unit and voltage converting method Jul. 29, 2008
7315130 Switching control for inverter startup and shutdown Jan. 1, 2008
7102898 Isolated drive circuitry used in switch-mode power converters Sep. 5, 2006
7023713 Voltage overshoot reduction circuits Apr. 4, 2006
6980447 Active snubber circuit for synchronous rectifier Dec. 27, 2005
6898093 Power conversion circuit with clamp and soft start May. 24, 2005
6898095 Bidirectional VSC converter with a resonant circuit May. 24, 2005
6876556 Accelerated commutation for passive clamp isolated boost converters Apr. 5, 2005
6853562 Voltage sense method and circuit which alleviate reverse current flow of current bi-directional converters Feb. 8, 2005
6853565 Voltage overshoot reduction circuits Feb. 8, 2005
6728084 System and method for overvoltage protection of an integrated circuit Apr. 27, 2004
6665199 Device supplied with current of limited strength Dec. 16, 2003
6597590 3-Level inverter apparatus Jul. 22, 2003
6587356 Start-up circuit and control for high power isolated boost DC/DC converters Jul. 1, 2003
6583997 Ultra-wide input range switching power supply for circuit protection devices Jun. 24, 2003
6490182 Power conversion apparatus Dec. 3, 2002
6466465 Digital control of voltage harmonic distortion and overload current protection for inverters Oct. 15, 2002
6452815 Accelerated commutation for passive clamp isolated boost converters Sep. 17, 2002
6434019 Method for reducing losses during the commutation process Aug. 13, 2002
6407937 Active overvoltage protection apparatus for a bidirectional power switch in common collector mode Jun. 18, 2002
6396714 Active clamping for zero current zero voltage forward conversion May. 28, 2002
6373731 Surge voltage suppressed power inverter using a voltage driven switching element Apr. 16, 2002
6351399 Power converter Feb. 26, 2002
6349044 Zero voltage zero current three level DC-DC converter Feb. 19, 2002
6272028 Power converter apparatus Aug. 7, 2001
6266257 Power convertor with low loss switching Jul. 24, 2001
6169672 Power converter with clamping circuit Jan. 2, 2001
6166933 Snubber circuit for an inverter having inductively coupled resistance Dec. 26, 2000
6141228 Parallel resonant DC linked inverter arrangement and method utilizing antiferroelectric dielectric material Oct. 31, 2000
5973943 Non zero-voltage switching protection circuit Oct. 26, 1999
5953222 Neutral point clamped converter Sep. 14, 1999
5926384 DC-dC converter having dynamic regulator with current sourcing and sinking means Jul. 20, 1999
5880943 Snubber circuit for a switching power source Mar. 9, 1999
5841647 Power conversion system Nov. 24, 1998
5835371 Bridge type power converter Nov. 10, 1998
5828559 Soft switching active snubber Oct. 27, 1998
5808879 Half-bridge zero-voltage-switched PWM flyback DC/DC converter Sep. 15, 1998
5793623 Air conditioning device Aug. 11, 1998
5717584 Quasi-resonant pole inverter Feb. 10, 1998
5710698 Delta connected resonant snubber circuit Jan. 20, 1998
5689394 Gate voltage modulation for transistor fault conditions Nov. 18, 1997
5638266 Free wheel diode arrangement for neutral point clamped electric power conversion apparatus Jun. 10, 1997
5576943 Soft switched three phase inverter with staggered resonant recovery system Nov. 19, 1996
5400236 Inventor-controlled power unit Mar. 21, 1995

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