Invention Grant
- Patent Title: Voltage-controlled oscillator and phase locked loop circuit with such voltage-controlled oscillator
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Application No.: US15700599Application Date: 2017-09-11
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Publication No.: US10270388B2Publication Date: 2019-04-23
- Inventor: Hiroaki Hoshino
- Applicant: Kabushiki Kaisha Toshiba
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: White & Case LLP
- Priority: JP2017-049481 20170315
- Main IPC: H03L7/00
- IPC: H03L7/00 ; H03B5/08 ; H03B1/04 ; H03L7/099 ; H03L7/089 ; H03B5/04 ; H03B5/12 ; H03L7/093 ; H03L7/18
Abstract:
According to an embodiment, a voltage-controlled oscillator has a variable capacitive element with a capacitance that is changed by a voltage to be applied thereto. One electrode of the variable capacitive element is connected to a control input terminal where a control voltage that controls an oscillation frequency is applied thereto. It has a compensation voltage generation circuit that generates a voltage that changes with a temperature thereof. It has a resistive element with one end that is directly connected to another electrode of the variable capacitive element and another end that is supplied with an output voltage of the compensation voltage generation circuit.
Public/Granted literature
- US20180269830A1 VOLTAGE-CONTROLLED OSCILLATOR AND PHASE LOCKED LOOP CIRCUIT WITH SUCH VOLTAGE-CONTROLLED OSCILLATOR Public/Granted day:2018-09-20
Information query
