PAST
PROJECTS
Developed
reference shaker to calibrate/verify operation functionality of laser
interferometers used to test HVAC products.
Compact
(PLC controlled) PWM generators designed to simulate automobile PWM generators for
production test of brushless motors.
DSP-based
system analyzes shape of commutation current waveform of brushless motor.
Software on DSP card performs analysis of shape of current waveform for
every commutation cycle over length of test. Returns statistics of max,
min, average for shape measurement as well as statistics on timing. Detects
missing and mis-timed commutation cycles. Based on CDA’s ISA-DSP56
card. Developed for large commercial manufacturer of brushless motors.
Built
prototype brushless motors electronics for 1st tier automotive supplier
of high-end brushless motors.
Developed
DC hipot tester for commercial armature tester. DC voltage adjustable
in 1V steps up to 4000VDC.
Developed
DSP based armature tester hardware for measurement of coil and weld resistance
measurements of DC commutated motors.
Developed
hardware for major motor manufacturer to monitor exact position of weld
electrode during welding process. Circuitry detects dirty/damaged weld
electrodes and sets alarm.
Developed
networked motor run-in controller allowing complicated run-in cycles for
automotive HVAC motors. Allowed up to 15-step programs with varied voltage,
timing, and ramp-rates
Linear
power supplies exhibited less than 10 mV noise driving 35 amperes of current
into DC commutated motors.
Microprocessor-based
board controlled timing and firing of SCRs for manufacture of motors for
commercial motor manufacturer
