217922 ⎘
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output; Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes
Apparatus having a vacuum chamber configured to convert electromagnetic waves to electricity for driving a steam generator system
#2Rectifier circuit with multiple cells, each cell having transistors with bulks biased by signals generated in other cells to control threshold voltage, and corresponding device and method
#3Apparatus having a vacuum chamber configured to convert electromagnetic waves to electricity