Oscillator
US10747248B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/447
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Across the entire operating temperature range, and without requiring a new transistor element, the constant voltage output by a constant voltage circuit can be controlled to a voltage greater than or equal to the stop-oscillating voltage and as low as possible. A resistance 11b that negatively feeds back a reference current Iref is connected between the gate and source of a depletion mode n-channel transistor 11a configured to produce the reference current Iref on which the constant voltage VREG is based. The resistance of resistance 11b has a gradient to temperature change of the same sign as the gradient of the difference between the constant voltage and the stop-oscillating voltage to temperature change when the gradient of the resistance value of the resistance to temperature change is 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.