Invention Grant
- Patent Title: Oscillation circuit, circuit device, oscillator, electronic apparatus, and vehicle
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Application No.: US15914324Application Date: 2018-03-07
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Publication No.: US10666190B2Publication Date: 2020-05-26
- Inventor: Takehiro Yamamoto
- Applicant: SEIKO EPSON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SEIKO EPSON CORPORATION
- Current Assignee: SEIKO EPSON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@2b4c5890
- Main IPC: H03B5/30
- IPC: H03B5/30 ; H03B5/36 ; H03B5/04
Abstract:
An oscillation circuit that causes a vibrator to oscillate includes a bipolar transistor for oscillation, a P-type transistor having a gate to which a collector voltage of the bipolar transistor is input and a source to which a base of the bipolar transistor is connected, a first current source that supplies a current to the bipolar transistor, and a second current source that supplies a current to the P-type transistor.
Public/Granted literature
- US20180269831A1 OSCILLATION CIRCUIT, CIRCUIT DEVICE, OSCILLATOR, ELECTRONIC APPARATUS, AND VEHICLE Public/Granted day:2018-09-20
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