TERNARY OUTPUT POWER UNIT AND IMAGE FORMING DEVICE

Title:

TERNARY OUTPUT POWER UNIT AND IMAGE FORMING DEVICE

Document Type and Number:

Japanese Patent JP3193464

Kind Code:

B2

Abstract:

PURPOSE: To provide the ternary output power unit at high start/stop speed and the high-resolution image forming device.
CONSTITUTION: When electronic switches S3 and S4 are turned off and electronic switches S1 and S2 are turned on, the output of a positive-output high frequency driving converter composed of a converter transformer T1 and a diode D1 or the like is supplied to an output terminal P1 and when the electronic switches S1 and S2 are turned off and the switches S3 and S4 are turned on, the output of a negative-output high frequency driving converter composed of a converter transformer T2 and a diode D2 or the like is supplied to the output terminal P. When the electronic switches S1 and S3 are turned off and the switches S2 and S4 are turned on, the output supplied from each converter to the output terminal P1 is turned to zero. Thus, ternary output at high start/stop speed can be provided by switching the high frequency converter circuits with the electronic switches of high-speed operations.

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Inventors:

Koji Suzuki
Satoshi Saito

Application Number:

JP20100892A

Publication Date:

July 30, 2001

Filing Date:

July 28, 1992

Export Citation:

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Assignee:

Canon Inc

International Classes:

G03G15/06; G05F1/00; (IPC1-7): G05F1/00; G03G15/06

Domestic Patent References:

JP5119594A

Attorney, Agent or Firm:

Hiroyuki Niwa (1 outside)

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