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US 4,307,349 AGranted
Impatt amplifiers
AssigneeThe Post Office
InventorsWilliam Thorpe, Peter W. Huish
Life of this patent
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Abstract
A protection circuit for an Impatt amplifier includes a voltage comparator which is arranged to sense the terminal voltage of the or each Impatt diode. When the comparator senses that a diode terminal voltage has risen above a predetermined value a circuit is actuated which causes power to be disconnected from the amplifier. The present circuit does not require the use of expensive couplers.
Claims4
An Impatt amplifier including at least one modified READ profile Impatt diode;
- means affording connection of said amplifier to a source of power;
- and sensing means connected to sense the terminal voltage of said diode and operative when the terminal voltage exceeds a predetermined value for disconnecting said amplifier from the power source.
Dependencies are inferred from the claim text.