US6583603B1
|
|
Back-up battery management apparatus and method for charging and testing battery cells in a string of battery cells
|
US6469491B1
|
|
Apparatus and method for measuring DC load current of a switching power supply
|
AU5734000A
|
|
Diode recovery current suppression circuits
|
MXPA01011657A
|
|
Digital voltage controlled oscillator.
|
US6396317B1
|
|
Digital voltage controlled oscillator
|
US6052298A
|
|
Inverter input noise suppression circuit
|
US6163204A
|
|
Fast AC sensor for detecting power outages
|
US5963078A
|
|
Transformer coupled FET drive circuit
|
US5933338A
|
|
Dual coupled current doubler rectification circuit
|
US5886503A
|
|
Back-up battery management apparatus for charging and testing individual battery cells in a string of battery cells
|
US5777454A
|
|
Back-up battery management system for a DC power supply
|