Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Patent
1994-12-01
1999-01-19
Berhane, Adolf Deneke
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
323280, G05F 1575
Patent
active
058617361
ABSTRACT:
A voltage regulator circuit (10) is provided. Regulator circuit (10) includes an amplifier (18) with an emitter follower output stage (26). Emitter follower stage (26) is coupled to a gate of a PMOS transistor (28). The source of transistor (28) is coupled to an input voltage at a power supply rail (12). Regulator (10) provides an output at node (14) at a drain of transistor (28). The output at node (14) is divided by resistors (30 and 34) and provided in a negative feedback loop to an input of amplifier (18). A reference voltage (22) is also provided to a second input of amplifier (18) such that the output at node (14) is a regulated voltage.
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"LM78XX Series Voltage Regulators" National Semiconductor pp. 1-271 National Semiconductor General Purpose Linear Devices Databook Published 1989.
"LM2931 Series Low Dropout Regulators" National Semiconductor pp. 1-220 through 1-225 National Semiconductor General Purpose Linear Devices Databook Published 1989.
Article by Frank Goodenough "Tiny IC Plus FET Building Super LDO Regulator" Electronic Design, Mar. 1994, pp. 45-49.
Corsi Marco
Kay Michael R.
Salamina Nicolas
Sanders Jeffrey W.
Berhane Adolf Deneke
Brady III Wade James
Donaldson Richard L.
Stewart Alan K.
Texas Instruments Incorporated
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