Invention Grant
US09312812B2 Oscillation circuit, oscillator, method of manufacturing oscillator, electronic device, and moving object
有权
振荡电路，振荡器，制造振荡器的方法，电子器件和运动物体
- Patent Title: Oscillation circuit, oscillator, method of manufacturing oscillator, electronic device, and moving object
- Patent Title (中): 振荡电路，振荡器，制造振荡器的方法，电子器件和运动物体
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Application No.: US14527006Application Date: 2014-10-29
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Publication No.: US09312812B2Publication Date: 2016-04-12
- Inventor: Yosuke Itasaka , Masayuki Ishikawa , Takehiro Yamamoto , Akihiro Fukuzawa
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2013-225944 20131030
- Main IPC: H03B5/36
- IPC: H03B5/36
Abstract:
An oscillation circuit includes a terminal XO which is connected to one end of a resonator, a terminal XI which is connected to the other end of the resonator, an oscillation unit which is electrically connected to the terminal XO and the terminal XI, a control voltage generation circuit, and a switch. The oscillation unit includes a variable capacitive element having one end which is connected to the terminal XO or the terminal XI. The switch controls electrical connection between the other end of the variable capacitive element and an output terminal of the control voltage generation circuit.
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