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Class Information
Number: 363/56.11
Name: Electric power conversion systems > Current conversion > Including automatic or integral protection means > For inverters > Transistor inverter > Single-ended type > Having voltage protection
Description: Subject matter including protection from an abnormal or unsafe voltage condition.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8670247 Isolated DC-DC converter with active clamp circuit Mar. 11, 2014
8593839 Accuracy of a volt-second clamp in an isolated DC-DC converter Nov. 26, 2013
8575885 Motor drive system, control method of motor drive system, and traveling device Nov. 5, 2013
8570771 Systems and methods of primary-side sensing and regulation for flyback power converter with high stability Oct. 29, 2013
8558520 Bus driver for avoiding an overvoltage Oct. 15, 2013
8542506 Method and apparatus for controlling the power of a transformer using a soft start circuit Sep. 24, 2013
8488343 Switching mode power supply apparatus having passive clamp circuit Jul. 16, 2013
8462523 Phase angle measurement of a dimming circuit for a switching power supply Jun. 11, 2013
8427850 Switching power supply device with a switching control circuit Apr. 23, 2013
8416583 Energy output circuit and its control method Apr. 9, 2013
8379419 Soft-stop overvoltage protection circuit for power factor correction type switching power supply unit Feb. 19, 2013
8331112 Systems and methods of primary-side sensing and regulation for flyback power converter with high stability Dec. 11, 2012
8289740 Voltage reduction detection circuit and switching power supply system Oct. 16, 2012
8243480 Method and apparatus for a control circuit responsive to an impedance coupled to a control circuit terminal Aug. 14, 2012
8222883 Method of forming PWM controller Jul. 17, 2012
8189354 Voltage converter with high efficiency May. 29, 2012
8102683 Phase angle measurement of a dimming circuit for a switching power supply Jan. 24, 2012
8059432 PWM controller having drive control with input voltage sensing and method therefor Nov. 15, 2011
8040699 Secondary side constant voltage and constant current controller Oct. 18, 2011
8031490 Power supply circuit and power supply system Oct. 4, 2011
8023295 Direct current (DC) to alternating current (AC) generation Sep. 20, 2011
8008902 Hysteretic buck converter having dynamic thresholds Aug. 30, 2011
8004864 Method and apparatus for a control circuit responsive to an impedance coupled to a control circuit terminal Aug. 23, 2011
7869235 Flyback converter having an active snubber Jan. 11, 2011
7848124 Overload and short protected soft-start converter Dec. 7, 2010
7825645 Switched-mode power supply regulation Nov. 2, 2010
7821798 High voltage power supply Oct. 26, 2010
7787269 Switching power supply device Aug. 31, 2010
7782009 Adjustable speed drive protection Aug. 24, 2010
7782638 Switching power supply device, semiconductor device, and control method Aug. 24, 2010
7773394 Digital latch control circuit for over-voltage protection and power converter using the control circuit Aug. 10, 2010
7697309 Overpower-protection circuit and power supply apparatus having the same Apr. 13, 2010
7633776 DC-DC converter for overvoltage protection Dec. 15, 2009
7633777 Active peak voltage-limiting clamp circuit Dec. 15, 2009
7558090 System for transferring an alternating voltage into a direct voltage Jul. 7, 2009
7554820 Series resonant DC-DC converter Jun. 30, 2009
7518836 Switching mode power supply and method for performing protection operation thereof Apr. 14, 2009
7515442 Secondary side controller and method therefor Apr. 7, 2009
7492618 Inverter device Feb. 17, 2009
7477532 Method of forming a start-up device and structure therefor Jan. 13, 2009
7359221 Power supply for use in an electronic energy meter Apr. 15, 2008
7355867 Power supply for an electric meter having a high-voltage regulator that limits the voltage applied to certain components below the normal operating input voltage Apr. 8, 2008
7355870 Switching mode power supply and method for outputting voltage therefrom Apr. 8, 2008
7339805 Power supply having voltage blocking clamp Mar. 4, 2008
7304870 Power converter Dec. 4, 2007
7187564 Switching power supply unit Mar. 6, 2007
7133300 Over-voltage protection circuit for power converter Nov. 7, 2006
7130201 Power supply device for outputting stable programmable power supply Oct. 31, 2006
7023713 Voltage overshoot reduction circuits Apr. 4, 2006
6975521 Switching power supply apparatus Dec. 13, 2005

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