Circuit and method for detecting status of a DC power supply for charging a battery
AssigneeRR Solutions LLC
InventorDaniel Wayne Griffin
Life of this patent
Estimating the term…
Abstract
A status monitor circuit for detecting the status of a DC power supply for charging a battery is provided. The status monitor circuit includes a DC bus and a failure indicator circuit. The DC bus is coupled between the DC power supply and the battery. The failure indicator circuit is configured to detect a DC voltage generated by the DC power supply on the DC bus. The failure indicator circuit includes a failure indicator and a relay configured to activate the failure indicator when the DC voltage is below a failure threshold voltage.
Claims20
A status monitor circuit for detecting a status of a direct current (DC) power supply for charging a battery, the status monitor circuit comprising:
- a DC bus coupled between the DC power supply and the battery;
- and
- a failure indicator circuit configured to detect a DC voltage generated by the DC power supply on the DC bus, the failure indicator circuit comprising:
- a failure indicator;
- and
- a relay comprising a closeable relay circuit and a terminal, the relay configured to close the closeable relay circuit to activate the failure indicator when the DC voltage is below a failure threshold voltage at the terminal.
A method of detecting a status of a direct current (DC) power supply for charging a battery, the method comprising:
- detecting, by a relay comprising a closeable relay circuit and a terminal, a DC voltage generated by the DC power supply on a DC bus coupled between the DC power supply and the battery;
- and
- activating, by the relay configured to close the closeable relay circuit, a failure indicator when the DC voltage falls below a failure threshold voltage at the terminal.
An electrical system comprising:
- a direct current (DC) power supply configured to be coupled to an alternating current (AC) power source and to generate a DC voltage;
- a battery;
- a DC bus coupled between the DC power supply and the battery;
- and
- a failure indicator circuit configured to detect the DC voltage generated by the DC power supply on the DC bus, the failure indicator circuit comprising:
- a failure indicator;
- and
- a relay comprising a closeable relay circuit and a terminal, the relay configured to close the closeable relay circuit to activate the failure indicator when the DC voltage is below a failure threshold voltage at the terminal.
Dependencies are inferred from the claim text.