Hall element circuit for electronically commutating motor
Hand tool reversing switch with rotatable spaced apart...
Hardware induction machine field-oriented control system
Heat treatment of metal work pieces
Helical scan recorder having capstan motor speed responsive...
High efficiency pneumatically driven electric power generator
High efficiency power supply and control brushless permanent...
High speed current reversal system
High voltage direct current link transmission system for...
High-efficiency electric motor of electronic commutation type
High-efficiency power supply control apparatus for...
High-speed control apparatus for cloth spreading machine
Holding brake control circuit for servo-motor
Hybrid alternator with voltage regulator
Hybrid motor starter
Hybrid step motor system
Hydraulic motor driven electric generating unit
Hydro-electric generating station
Hydroelectric pumped-storage
Hydroelectric to hydrogen energy conversion