18336630. CURRENT SENSOR FOR POWER ELECTRONIC CONVERTER (Hamilton Sundstrand Corporation)
Contents
CURRENT SENSOR FOR POWER ELECTRONIC CONVERTER
Organization Name
Hamilton Sundstrand Corporation
Inventor(s)
Weilun Chen of Glastonbury CT (US)
Yongduk Lee of Manchester CT (US)
Sriram Chandrasekaran of Lucas TX (US)
CURRENT SENSOR FOR POWER ELECTRONIC CONVERTER
This abstract first appeared for US patent application 18336630 titled 'CURRENT SENSOR FOR POWER ELECTRONIC CONVERTER
Original Abstract Submitted
A system having: a power switching circuit providing a drive current to a load, and having: a power source; first and second serially connected switches convert DC power from the power source into AC current to form the drive current, or vice versa; a first high-bandwidth current sensor circuit measures high-side current pulses through the first switch and provides a first analog signal, proportional to the high-side pulses; a second high-bandwidth current sensor circuit measures low-side current pulses through the second switch and provides a second analog signal is proportional to the low-side pulses; a signal processing device coupled to the first and second current sensor circuits performs steps of: converting the first analog signal to a first digital signal and the second analog signal to a second digital signal; and reconstructing the drive current and obtaining its cycle average values from the first and second digital signals.
