Electrostatic high voltage drive circuit using diodes

Details Electrostatic high voltage drive circuit using diodes Electrostatic high voltage drive circuit using diodes

G - Physics

03

G

314/22

G03G 15/02 (2006.01) B41J 2/40 (2006.01) G03G 15/04 (2006.01) H03K 17/567 (2006.01) H03K 17/74 (2006.01)

Patent

CA 1177517

ELECTROSTATIC HIGH VOLTAGE DRIVE CIRCUIT USING DIODES Abstract of the Invention A diode switching system for use with an electrographic writing system is disclosed. The switching system has a high stor- age charge diode with a capacitor connected to its anode which de- fines an output. Once the diode is charged, application of a large drive voltage to the free end of the capacitor will short the volt- age through the diode due to the stored charge of the diode, thus preventing the stylus from writing. When the diode has not been charged, application of a large drive voltage will be coupled through the capacitor thus powering the writing stylus.

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