Electrical circuit testing
AssigneeHamilton Sundstrand Corporation
InventorWaleed M. Said
Life of this patent
Estimating the term…
Abstract
An electronics system module includes a primary electrical circuit including input connectors and output connectors and a filter circuit connected between the primary electrical circuit and ground. The module also includes a switch element connected between the primary electrical circuit and ground. The switch element is configured to be engaged by a test connector to open the switch to disconnect the primary electrical circuit from ground. The test connector includes electrical connectors configured to connect to the input connectors and the output connectors of the primary electrical circuit. The switch element is configured to automatically close based on the test connector being disengaged from the switch element.
Claims15
An electronics system module, comprising:
- a primary electrical circuit including input connectors and output connectors;
- a filter circuit connected between the primary electrical circuit and ground;
- and
- a switch element connected between the primary electrical circuit and the ground,
- wherein the switch element is configured to be engaged by a test connector to open the switch to disconnect the primary electrical circuit from the ground,
- wherein the test connector includes electrical connectors configured to connect to the input connectors and the output connectors of the primary electrical circuit,
- wherein the test connector is configured to connect a gate of a component of the switch element to the ground to disconnect the primary electrical circuit from the ground and enable a dielectric test on the primary electrical circuit while the primary electrical circuit is disconnected from the ground, and
- wherein the switch element is configured to automatically close based on the test connector being disengaged from the switch element.
A method for testing an electronics system module comprising:
- connecting a test connector to an electronics system module, the electronics system module including a primary electrical circuit including signal inputs and signal outputs, a filter circuit connected between the primary electrical circuit and the ground, and a switching element connected between the primary electrical circuit and the ground, the test connector including input connectors to connect to the signal inputs of a primary electrical circuit, output connectors to connect to the signal outputs of the primary electrical circuit and a switch connector to connect to the switching element, the switch connector configured to turn off the switching element to disconnect the primary electrical circuit from the ground;
- connecting, by the test connector, a gate of a component of the switch element to the ground to disconnect the primary electrical circuit from the ground;
- and
- performing a dielectric test on the electronics system module by applying a high AC voltage to the signal inputs and signal outputs of the primary electrical circuit while the primary electrical circuit is disconnected from the ground.
A circuit test unit configured to perform a dielectric test of an electronics system module, the electronics system module including a primary electrical circuit, a filter circuit connected between the primary electrical circuit and ground, and a switching element connected between the primary electrical circuit and the ground configured to selectively connect and disconnect the primary electrical circuit from the ground, the circuit test unit comprising:
- input connectors configured to connect to signal inputs of a primary electrical circuit;
- output connectors configured to connect to signal outputs of the primary electrical circuit;
- a voltage source configured to apply a high AC voltage to the input connectors and the output connectors;
- and
- a switching element connector configured to engage by a test connector to turn off the switching element based on the test connector being connected to the electronics system module,
- wherein the test connector is configured to connect a gate of a component of the switch element to the ground to disconnect the primary electrical circuit from the ground and enable a dielectric test on the primary electrical circuit while the primary electrical circuit is disconnected from the ground.
Dependencies are inferred from the claim text.