Fail-safe amplifier power supply
First Claim
Patent Images
1. A power supply, comprising:
- input means for receiving a single power-supply-operating potential;
first and second output terminals;
first means coupled to said input means for providing a first D.C. potential of a predetermined magnitude and polarity to said first output terminal; and
fail-safe means for providing a second D.C. potential of predetermined magnitude and polarity to said second output terminal only if said first means is operational and said first potential is present at said first output terminal.
0 Assignments
0 Petitions
Accused Products
Abstract
A fail-safe power supply for providing operating potential to a first, e.g. drain, electrode of a device, such as a gallium-arsenide field effect transistor (GaAsFET) and the like, only if operating potential, of an opposite polarity, is previously applied to another, e.g. gate, electrode of the device. A DC-to-DC converter is powered by the gate electrode potential to provide drain electrode potential only when gate electrode is present. Both the gate and drain potentials may be electronically regulated. The DC-to-DC converter and the dual regulators may be fully integratable into a single four-lead integrated circuit.
-
Citations
13 Claims
-
1. A power supply, comprising:
-
input means for receiving a single power-supply-operating potential; first and second output terminals; first means coupled to said input means for providing a first D.C. potential of a predetermined magnitude and polarity to said first output terminal; and fail-safe means for providing a second D.C. potential of predetermined magnitude and polarity to said second output terminal only if said first means is operational and said first potential is present at said first output terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification