Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1989-04-20
1990-07-03
Salce, Patrick R.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
323904, H05B 3702
Patent
active
049393820
ABSTRACT:
A touch responsive power control system in which the majority of the signal processing functions are achieved through digital circuitry and includes a controllable pulse generator responsive to the change in capacitance caused by a human touch at a touch sensitive control point of the device to be regulated. The magnitude of the change in capacitance caused by the human touch is encoded in the form of the number of pulses contained in a pulse train or a series of pulse trains over a selected time period. The number of pulses is counted and digitally compared with a stored count. If the present count is different from the stored count, the stored count is adjusted and an error signal proportional to the difference between counts is supplied, after a sufficient interval, to a load driver which adjusts the power level supplied to the load from an electrical power source.
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Reynolds; "Touch Actuated Generator"; Practical Electronics, Jan. 1978, p. 347.
Salce Patrick R.
Sterrett Jeffrey
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