Invention Grant
- Patent Title: Radiation-hard precision voltage reference
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Application No.: US15175884Application Date: 2016-06-07
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Publication No.: US10200036B1Publication Date: 2019-02-05
- Inventor: Paul A. Ward , James S. Pringle , Marc S. Weinberg , Warner G. Harrison
- Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
- Applicant Address: US MA Cambridge
- Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
- Current Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
- Current Assignee Address: US MA Cambridge
- Agency: Lando & Anastasi, LLP
- Main IPC: H03K19/003
- IPC: H03K19/003 ; H03B5/32 ; H03H9/02 ; H03H9/24 ; H03L7/099 ; H03L1/02

Abstract:
Provided is a Precision Voltage Reference (PVR). In one example, the PVR includes a resonator having an oscillation frequency, the resonator including a first proof-mass, a first forcer located adjacent a first side of the first proof-mass, and a second forcer located adjacent a second side of the first proof-mass. The PVR may include control circuitry configured to generate a reference voltage based on the oscillation frequency of the resonator, at least one converter configured to receive the reference voltage from the control circuitry, provide a first bias voltage to the first forcer based on the reference voltage, provide a second bias voltage to the second forcer based on the reference voltage, and periodically alter a polarity of the first and second bias voltages to drive the oscillation frequency to match a reference frequency, and an output configured to provide the reference voltage as a voltage reference signal.
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