BROWSE
Detail
Registered LOW-VOLTAGE BAND-GAP REFERENCE VOLTAGE BIAS CIRCUIT
- Inventors
- Young Ho Kim, Park Seong Su
- Application No.
- 11945708 (2007.11.27)
- Publication No.
- 20080136504 (2008.06.12)
- Registration No.
- 7808305 (2010.10.05)
- Country
- UNITED STATES
- Project Code
- 06MB1800, Integrated Development of UltraLow Power RF/HW/SW SoC, Seok Bong Hyun
- Abstract
- A low-voltage band-gap reference voltage bias circuit is provided. In the low-voltage band-gap reference voltage bias circuit, a proportional-to-absolute temperature (PTAT) current is copied to two nodes, respectively, to generate a first voltage having a negative slope with respect to temperature variation, and a second voltage having a positive slope with respect to temperature variation, and first and second elements having high impedances are serially connected to each other between the two nodes, such that the sum of the negative slope of the first voltage and the positive slope of the second voltage is zero and an average voltage between the two nodes is extracted to output the extracted result as a reference voltage. Accordingly, a stable reference voltage of 1V or lower regardless of a power supply voltage and temperature variation can be supplied.
- KSP Keywords
- Absolute temperature, Average Voltage, Band gap, Band-gap reference voltage, Bandgap Reference, Positive slope, Supply voltage, Temperature variations, Voltage band, Voltage bias circuit, bias circuit, low voltage, power supply, process-voltage-temperature(PVT), reference voltage, voltage bias