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Patent Searching and Data


Title:
発振回路
Document Type and Number:
Japanese Patent JP6624873
Kind Code:
B2
Abstract:
Provided is an oscillation circuit that can limit a maximum value and a minimum value of a frequency even when some troubles are caused in a V/I conversion circuit. The oscillation circuit includes a current controlled oscillator configured to oscillate based on an input current, and a current limiting circuit configured to: compare the input current with a first constant current and with a second constant current; limit, when the input current reaches the first constant current, a maximum current value of the input current with a transistor arranged on a path of the input current; and limit, when the input current is lowered to the second constant current, a minimum current of the input current through addition of current on the path of the input current by a transistor arranged in parallel with the path of the input current.

Inventors:
高田 幸輔
Application Number:
JP2015194570A
Publication Date:
December 25, 2019
Filing Date:
September 30, 2015
Export Citation:
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Assignee:
エイブリック株式会社
International Classes:
H03B5/12; G05F3/26; H03K3/03; H03K4/12
Domestic Patent References:
JP2011188183A
JP200144808A
Foreign References:
WO2009107992A2