Concurrent alternating-current and direct-current

Patent metadata

Field	Value
Publication number	US-10840734-B2
Application number	US-201615774703-A
Country	US
Kind code	B2
Filing date	Jan 28, 2016
Priority date	Jan 28, 2016
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

Example implementations relate to concurrent alternating-current and direct-current. In one example, a device comprises a power module connected to a first power outlet, the power module connected to a second power outlet, and a controller to the power module to concurrently provide alternating-current (AC) power to the first power outlet and direct-current (DC) power to the second power outlet by switching a transistor including switching circuitry in response to an absence of AC input power to the device.

First claim

What is claimed:

1. A device, comprising:
a power module connected to a first power outlet and a second power outlet;
a transistor having switching circuitry that, when in a closed position, allows alternating-current (AC) power to flow to the first and second power outlet;
a controller to: detect an absence of AC power to the device; and
in response to the detection of the absence of AC power to the device, switch the transistor from the closed position to an open position, where the power module, when the transistor is in the open position, concurrently provides AC power to the first power outlet and direct-current (DC) power to the second power outlet through a switch.

2. The device of claim 1 , wherein the power module is connected to the first power outlet by a bidirectional inverter-charger.

3. The device of claim 1 , wherein the first power outlet and the second power outlet are connected by the transistor including switching circuitry.

4. The device of claim 1 , wherein the controller causes AC power from the AC input to be provided to the power module via a bidirectional inverter-charger when the AC input is providing power to the device.

5. A method, comprising:
detecting, by a controller, an absence of AC input power from an alternating-current (AC) input to a first set of power outlets and a second set of power outlets of a device;
switching, by the controller, a transistor with switching circuitry connecting the first set of power outlets and the second set of power outlets in response to the absence of AC input power from the AC input; switching, by the controller, a switch connecting a power module of the device and the second set of outlets in response to the absence of AC input power from the AC input, wherein the switching includes switching the transistor open in response to the absence of AC input power from the AC input; and providing, from the power module of the device, AC power to the first set of power outlets concurrently with providing direct-current (DC) power to the second set of power outlets through the switch in response to the absence of AC input power from the AC input to the device.

6. The method of claim 5 , wherein providing the DC power to the second set of power outlets includes modifying a DC voltage of the DC power from the power module by a DC-DC converter connecting the power module, the switch, and the second set of power outlets.

7. The method of claim 5 , wherein the method includes providing DC power to the power module when the AC input is providing power via a bidirectional inverter-charger, wherein the bidirectional inverter-charger converts AC power from the AC input to DC power.

8. The method of claim 5 , wherein the method includes switching the transistor closed in response to power from the AC input being reestablished.

9. A controller comprising a processing resource in communication with a memory resource including instructions to: detect a connection of an alternating-current (AC) input;
in response to the detection, switch a transistor to a closed position, the transistor having switching circuitry that, when in the closed position, allows AC power to flow to a first and second power outlet; detect an absence of AC power to the device; and
in response to the detection of the absence of AC power to the device, switch the transistor from the closed position to an open position, where the power module, when the transistor is in the open position, concurrently provides AC power to the first power outlet and direct-current (DC) power to the second power outlet through a switch.

10. The controller of claim 9 , wherein the AC power is provided to the first set of power outlets from the power module via a bidirectional inverter-charger.

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Nguyen Hai Ngoc
• Banerjee Abhishek

Classifications

• H02J9/06 Primary

  with automatic change-over {, e.g. UPS systems} · CPC title

• H02J2207/40

  adapted for charging from various sources, e.g. AC, DC or multivoltage · CPC title

• G06F1/263

  Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence) · CPC title

• H02M7/02

  Conversion of AC power input into DC power output without possibility of reversal · CPC title