Electricity: single generator systems – Automatic control of generator or driving means – Thermal conditions
Patent
1998-05-21
2000-08-22
Ponomarenko, N.
Electricity: single generator systems
Automatic control of generator or driving means
Thermal conditions
322 36, H05B 100
Patent
active
061077836
ABSTRACT:
A solid state control circuit controls handlebar heaters on a snowmobile or similar responding loads. Circuit is supplied by AC voltage with variations in frequency and waveform of the AC input. A portion of this input is rectified and compared with a rectified portion of the output voltage. The difference between these two signals is used to supply two amplifying devices. A control signal to a switching device selectively connects one polarity of the AC to the load. The circuit is adapted to be disabled by the application of an external voltage typically from a brake light switch and bulb. The opposite polarity of the waveform is controlled from the AC to the load by sensing the DC component across the load and using a second switching device to drive this DC value to a negligible value. Components are incorporated that are sensitive to temperature and also waveform to produce higher output heating at high vehicle speed and lower operating ambient temperatures or airflows.
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