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Innovative Solutions
Military, Consumer and Industrial Solutions from the Past

Military Generator Sets
Problem: How to reduce size & weight of dual-voltage 3-phase generator sets.
Solution: Patented variable speed PM alternator-DC link-inverter with dual-voltage capability and battery transient support.

F-16 Turbogen
Problem: Replace unreliable high power resistors used to load Turbogen for speed control.
Solution: 15kW, 1900 to 400 Hz unity power factor 3-phase AC to AC converter capable of recovering excess Turbogen power and supplying it to the aircraft 400 Hz power bus.

700W Generator Set
Problem: Need high power density genset with robust starting, DC & AC outputs and low thermal/noise signature.
Solution: Sensorless starting algorithm for high torque loads. Control algorithm for matching engine characteristics. 120Vac, 50/60/400 Hz pure sine wave inverter with 500 watts/lb density.

48V DC Converter
Problem: High Failure Rate of third party Power Supply
Solution: Added Output board with passive current sharing.

Telecom Electronic Battery Module
Problem: How to map high energy density battery technology to lead-acid battery applications.
Solution: High-efficiency, compact, high-reliablity duel interleaved current controlled bi-directional DC to DC converter.

Hybrid Electric Vehicle
Problem: Power Capability of Variable Speed Alternator
Solution: Increased Power by 28% by Correcting Power Factor at Gap Flux Instead of Output Voltage (Controlled Alternator).

Helicopter Power Supply
Problem: Weight (50lb. Limit)
Solution: 36 lb. High Power Density 400 Hz Electronic Transformer Operating at 100K Hz

Electric Bicycle
Problem: Efficiency & Regenerative Breaking for Battery Life
Solution: Patented High Efficiency Asynchronous Regeneration Inverter

Military/Aerospace Fans
Problem: Loss of control during transient power outages. Power dissipation of precise, robust control methods.
Solution: Patented Control/Boost circuit using internal energy storage. Patented dynamic reconfiguration of PWM approach.

40W 3-Output Regulator
Problem: High efficiency, small size, quick turn around.
Solution: 97% Efficient 65V to 28V Synchronous Rectifier Regulator.

Electronic Alternator for Fuel Cell HEV
Problem: High Density, Low EMI, Liquid Cooled
Solution: 100 Amp. 450V DC-DC Converter.

15kW 610 to 28 DC-DC Converter
Problem: High di/dt's produced in 100kHz, 500A converter.
Solution: Methods for controlling stray inductance.

160K RPM Turbocharger Motor
Problem: 2.667kHz fundamental frequency motor control. Power control for both motor and regen modes.
Solution: High speed inverter electronics and advanced carbon sleeve permanent rotor retention.

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