Electricity: electrical systems and devices – Polarity reversing
Patent
1990-12-27
1993-03-02
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Polarity reversing
307127, 320 26, H03K 1766
Patent
active
051915073
ABSTRACT:
A polarity inverting circuit includes first and second output voltage transmission circuits, first and second connection circuits, first and second polarity switching time changing circuits, and a controller. The first output voltage transmission circuit is connected to a first signal line to linearly change an output voltage from a first potential to a second potential. The second output voltage transmission circuit is connected to a second signal line to linearly change an output voltage from the second potential to the first potential when an output voltage from the first output voltage transmission circuit reaches the second potential. The first connection circuit connects the first signal line to a second potential source when the output from the first output voltage transmission circuit reaches the second potential. The second connection circuit disconnects the second signal from the second potential source when the first connection circuit is connected to the second potential source. The first and second polarity switching time changing circuits are respectively connected to the first and second output voltage transmission circuits to change rates of changes in output voltage. The controller controls operations of the respective circuits.
REFERENCES:
patent: 4071879 (1978-01-01), Falk
Fleming Fritz M.
Gaffin Jeffrey A.
NEC Corporation
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