Invention Grant
- Patent Title: Voltage control apparatus, power supply apparatus, electron tube and high-frequency circuit system
- Patent Title (中): 电压控制装置，电源装置，电子管和高频电路系统
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Application No.: US12395994Application Date: 2009-03-02
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Publication No.: US08212481B2Publication Date: 2012-07-03
- Inventor: Yukihira Nakazato
- Applicant: Yukihira Nakazato
- Applicant Address: unknown Kanagawa
- Assignee: NEC Microwave Tube, Ltd
- Current Assignee: NEC Microwave Tube, Ltd
- Current Assignee Address: unknown Kanagawa
- Priority: JP2008-051951 20080303
- Main IPC: H01J29/96
- IPC: H01J29/96
Abstract:
A voltage control apparatus used for an electron tube or a power supply apparatus includes a detecting circuit for detecting current flowing through a helix electrode, a voltage-limiting circuit for controlling a potential difference between the helix electrode and the anode electrode based on a predetermined voltage level; and a switch for switching based on an output from the detecting circuit. The switch connects the helix electrode and the anode electrode through the voltage-limiting circuit, or causes a short circuit between the helix electrode and the anode electrode.
Public/Granted literature
- US20090218948A1 VOLTAGE CONTROL APPARATUS, POWER SUPPLY APPARATUS, ELECTRON TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM Public/Granted day:2009-09-03
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