NPN bandgap voltage generator
This patent describes a voltage reference circuit including a first output terminal for providing an output, a first supply voltage terminal, and a second supply voltage terminal, comprising: first means for developing a first voltage having a positive temperature coefficient, comprising: a first NPN transistor having an emitter coupled to the first output terminal, a collector coupled to the first supply voltage terminal, and a base; second means coupled between the first output terminal and the second supply voltage means for providing a resistance; a first resistor; a second resistor; a first diode; a second diode; third means for providing a resistance; and a second NPN transistor having an emitter coupled to the second supply voltage terminal by the first resistor, a base coupled both to the second supply voltage terminal by the first diode and to the base of the first NPN transistor by the third means, and a collector coupled to a node by the second diode. The node is coupled to the base of the first NPN transistor by the second resistor.
- Assignee:
- Motorola, Inc., Shaumburg, IL
- Patent Number(s):
- US 4628248
- OSTI ID:
- 6920348
- Resource Relation:
- Patent File Date: Filed date 31 Jul 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRIC GENERATORS
DESIGN
OPERATION
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRONIC CIRCUITS
RESISTORS
SEMICONDUCTOR DIODES
TEMPERATURE DEPENDENCE
TRANSISTORS
CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
SEMICONDUCTOR DEVICES
420800* - Engineering- Electronic Circuits & Devices- (-1989)