Power supply control device, test method, and computer program
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
InventorShunichi SAWANO
Life of this patent
Estimating the term…
Abstract
A power supply control device controls a supply of power by switching a FET on or off. A current that rises when a current flowing through the FET rises flows through a resistor circuit. A drive circuit makes a notification when a voltage across both ends of the resistor circuit reaches a voltage greater than or equal to a reference voltage. A microcomputer instructs an application circuit to apply a voltage to the resistor circuit. As a result, the application circuit applies a voltage greater than or equal to the reference voltage to the resistor circuit. After instructing the application circuit to stop applying the voltage to the resistor circuit, the microcomputer determines whether or not the drive circuit is making the notification.
Claims7
A power supply control device that controls a supply of power by switching a switch on or off, the power supply control device comprising:
- a resistor circuit in which a current that rises when a current flowing through the switch rises flows;
- a notifying circuit configured to make a notification when a voltage across both ends of the resistor circuit reaches a voltage greater than or equal to a predetermined voltage;
- an application circuit configured to apply a voltage greater than or equal to the predetermined voltage to the resistor circuit;
- and
- a processing unit configured to execute processing,
- wherein the processing unit:
- instructs the application circuit to apply the voltage to the resistor circuit, and
- determines whether or not the notifying circuit is making the notification after instructing the application circuit to apply the voltage.
A test method, executed by a computer, for testing a notifying circuit that makes a notification when a voltage across both ends of a resistor circuit, in which a current that rises when a current flowing through the switch rises flows, reaches a voltage greater than or equal to a predetermined voltage, the test method comprising:
- a step of instructing a voltage greater than or equal to the predetermined voltage to be applied to the resistor circuit;
- and
- a step of determining whether or not the notifying circuit is making the notification after instructing the voltage to be applied to the resistor circuit.
A computer program for causing a computer to test a notifying circuit that makes a notification when a voltage across both ends of a resistor circuit, in which a current that rises when a current flowing through the switch rises flows, reaches a voltage greater than or equal to a predetermined voltage, the computer program causing the computer to execute:
- a step of instructing a voltage greater than or equal to the predetermined voltage to be applied to the resistor circuit;
- and
- a step of determining whether or not the notifying circuit is making the notification after instructing the voltage to be applied to the resistor circuit.
Dependencies are inferred from the claim text.