Integrated voltage supply
First Claim
1. An integrated voltage supply coupled to a first and a second voltage terminal and providing a first and a second output, comprising:
- A zener diode having an anode and a cathode, the cathode being coupled to the first voltage terminal;
a first resistor coupled between the anode of the zener diode and the second voltage terminal, and forming a node between the first resistor and the anode of the zener diode;
a first field effect transistor having a first and a second electrode and a gate electrode, the gate electrode being coupled to the node;
a second resistor coupled between the first electrode of the first field effect transistor and the second voltage terminal; and
a second field effect transistor having a first and a second electrode and a gate electrode, the gate electrode being coupled to the first electrode of the first field effect transistor, the first electrode of the second field effect transistor being coupled to the second voltage terminal, the second electrodes of the first and second field effect transistors being coupled together and forming the second output, and the first voltage terminal also serving as the first output.
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Accused Products
Abstract
A complementary field effect transistor integrable voltage regulator suitable for use in CMOS integrated circuits includes first and second regulator sections coupled together. One regulator section includes a P channel MOSFET and an N channel MOSFET and a resistor, the P channel MOSFET and the resistor being coupled in series between an internal supply conductor and a reference conductor, the N channel MOSFET being connected in parallel therewith and having its gate electrode connected to the junction between the P channel MOSFET and the resistor. The gate electrode of the P channel MOSFET is connected to the output of another regulator, which includes a zener diode and a resistor coupled in series between the reference conductor and another voltage conductor.
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Citations
3 Claims
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1. An integrated voltage supply coupled to a first and a second voltage terminal and providing a first and a second output, comprising:
A zener diode having an anode and a cathode, the cathode being coupled to the first voltage terminal;
a first resistor coupled between the anode of the zener diode and the second voltage terminal, and forming a node between the first resistor and the anode of the zener diode;
a first field effect transistor having a first and a second electrode and a gate electrode, the gate electrode being coupled to the node;
a second resistor coupled between the first electrode of the first field effect transistor and the second voltage terminal; and
a second field effect transistor having a first and a second electrode and a gate electrode, the gate electrode being coupled to the first electrode of the first field effect transistor, the first electrode of the second field effect transistor being coupled to the second voltage terminal, the second electrodes of the first and second field effect transistors being coupled together and forming the second output, and the first voltage terminal also serving as the first output.- View Dependent Claims (2, 3)
Specification
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- Resources
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Current AssigneeSemiconductor Components Industries LLC (ON Semiconductor Corporation)
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Original AssigneeMotorola, Inc. (Motorola Solutions, Inc.)
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InventorsBeutler, Robert R., Alaspa, Allan A.
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Primary Examiner(s)PELLINEN, A DAVID
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Application NumberUS06/028,948Time in Patent Office1,721 DaysField of Search323/22 R, 323/22 T, 323/274, 323/281, 323/300, 323/303US Class Current323/303CPC Class CodesG05F 3/185 and field-effect transistors
