217818 ⎘
Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
PROVISION OF TWO MUTUALLY DIFFERENT ELECTRICAL DC VOLTAGES BY MEANS OF AN ENERGY CONVERTER
#2POWER CONVERTER EFFICIENCY BOOST AT LOW LOADS, KEEPING MAXIMUM CONSTANT SWITCHING FREQUENCY OPERATION RANGE
#3MULTIPLE PORT BIDIRECTIONAL POWER CONVERSION CIRCUIT
#4Interleaved boost converter with capacitive multiplier for LED drive
#5Method for charging an energy storage element of a vehicle using a modular charging apparatus with high overall efficiency
#6Redundancy control method of MMC for HVDC
#7Solid state regulator and circuit breaker for high-power DC bus distributions
#8Direct current converter
#9DC/DC converter
#10Multilevel boost DC to DC converter circuit
#11Current mode switching regulator and operating method with offset circuitry to emulate a transient load step response
#12Circuit and method for maximum duty cycle limitation in step up converters
#13HIGH GAIN DC TRANSFORMER
#14VOLTAGE SUPPLY DEVICE FOR A LOAD
#15Low impedance polarity conversion circuit