Adjustable reference current generator, semiconductor device and adjustable reference current generating method
US9804630B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2016 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Feb 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A reference current generation part receives an adjustment signal representing a target current and generates a reference current having a current value which is corresponding to the adjustment signal. A detection current generation part generates a detection current having a current value which is m (where the m denotes 1 or more) times as large as a current value of the reference current. A detection voltage generation part with a first resistor generates a detection voltage having a voltage value corresponding to a voltage drop across the first resistor in response to a supply of the detection current. A monitor voltage generation part with a second resistor having a resistance value which is 1/n (where the n denotes greater than 1) times as large as a resistance value of the first resistor, and for generating a monitor voltage having a voltage value which is corresponding to a voltage drop across the second resistor in response to a monitor current supplied from outside of the adjustable reference current generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.