Voltage regulation device capable of stabilizing output voltage
US10048717B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2017 |
| Grant date | Aug 14, 2018 |
| Priority date | — |
| Expiry date | Dec 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/262
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulation device includes a first transistor, a first bias current source, a bias resistor, a second transistor, a second bias current source, and a detection adjustment circuit. The first transistor is coupled to the first bias current source for outputting a reference voltage. The bias resistor is coupled to the first transistor for receiving a regulation current. The second transistor has a first terminal for receiving a system voltage, a second terminal for outputting an output voltage, and a control terminal for receiving the reference voltage. The second bias current source is coupled to the second terminal of the second transistor. The detection adjustment circuit is coupled to the first transistor and the second transistor. When the output voltage is too low, the detection adjustment circuit activates the compensation current source to increase the voltage at the control terminal of the second transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.