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US 2021/0063474 A1Published application
Controlling power dissipation in an output stage of a test channel
AssigneeTeradyne, Inc.
InventorsJason A. Messier, Bryce M. Wynn, William Bowhers
Life of this patent
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Abstract
An example test system includes an output stage to source at least one of voltage or current to a channel of a test instrument; a tracking circuit to detect a channel voltage following the output stage and to control a supply voltage to the output stage based on the channel voltage; and a controller to determine a power dissipation of the output stage based on the supply voltage and the channel voltage, and to control the output stage based on the power dissipation in the output stage.
Claims26
A test system comprising:
- an output stage to source at least one of voltage or current to a channel of a test instrument;
- a tracking circuit to detect a channel voltage following the output stage and to control a supply voltage to the output stage based on the channel voltage;
- and
- a controller to determine a power dissipation of the output stage based on the supply voltage and the channel voltage, and to control the output stage based on the power dissipation in the output stage.
1 more element
A test system comprising:
- test instruments to send signals to, and to receive signals from, a device under test (DUT), each test instrument comprising one or more channels, a channel among the one or more channels comprising an output stage to source at least one of voltage or current;
- a device interface board (DIB) for connecting one or more of the test instruments to the DUT both electrically and mechanically;
- and
- a computing system to control operation of one or more of the test instruments;
- wherein the channel comprises:
- a tracking circuit to limit a voltage differential between a supply voltage to the output stage and a channel voltage on the channel;
- and
- a controller to control the output stage based on a power dissipation in the output stage.
5 more elements
Dependencies are inferred from the claim text.