Optical energy transfer subassemblies
1987
Transfer of energy into an electrically isolated region by optical energy transfer subassemblies (OETS) was investigated. The OETS were based on photovoltaic conversion of light from a directly modulated semiconductor laser coupled by an optical fiber to a single junction solar cell. A ferrite core transformer increased the voltage to desired levels inside the isolated region. Two specific functions were characterized: (1) energizing a half-wave rectifier circuit for a continuous 5 V power source and (2) charging a capacitor. Our best subassembly supplied 5.5 V and 0.5 mA continuously and charged a 30 ..mu..f capacitor to 27 V in 3 s.
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