Chongming Qiao - Irvine CA, US Reza Amirani - Dana Point CA, US Vincent Condito - San Jose CA, US Amir Asvadi - Laguna Hills CA, US
Assignee:
NEXEM, INC. - Irvine CA
International Classification:
G05F 1/46
US Classification:
323283
Abstract:
A voltage controller and method providing multiple modes of operation. Embodiments include pulse-width modulation (PWM), feed-forward (FF), pulse-frequency modulation (PFM) and skip operation (PWM-FF-PFM/SKIP). Controller embodiments have integrated MOSFET components, comparator hysteresis, oscillator feed-forward, fixed gain, and error amplifier (EA) limits thereby providing improved efficiency and noise immunity.
Over Voltage Protection Scheme For Synchronous Buck Converter
Mark Smith - Irvine CA, US Chongming Qiao - Irvine CA, US Vincent Condido - Palo Alto CA, US Amir Asvadi - Laguna Hills CA, US
Assignee:
Nexem, Inc. - Irvine CA
International Classification:
H02H 9/00
US Classification:
361 56, 323224
Abstract:
An over voltage protection circuit for single phase and multiphase buck converters. According to one embodiment, upon the occurrence of an over voltage condition, the high side switch is turned Off and the low side switch is On. As the output voltage drops below a lower threshold, the low side switch is turned Off thereby reducing or eliminating negative spikes on the voltage output.
Name / Title
Company / Classification
Phones & Addresses
Amir Asvadi President
INTERGIFT CORPORATION Commercial Art/Graphic Design Business Services Whol Plastic Materials/Shapes · Uncoated Paper & Multiwall Bag Mfg
16 Technology STE 209, Irvine, CA 92618 500 Wald, Irvine, CA 92618 9494531973, 9494531974
Amir Asvadi President
IMAGE HOLDINGS, INC Holding Company
16742 Gothard St STE 218, Huntington Beach, CA 92647 500 Wald, Irvine, CA 92618
Amir Asvadi President
NEXSEM, INC
16742 Gothard St SUITE 218, Huntington Beach, CA 92647 500 Wald, Irvine, CA 92618