IP Library › Granted Patent US 10,840,734
Granted Patent B2
US 10,840,734 · App. 15/774,703 · Granted Nov 17, 2020

Concurrent alternating-current and direct-current

Inventors: Hai Ngoc Nguyen (Houston, TX); Abhishek Banerjee (Houston, TX)
Assignee: Hewlett Packard Enterprise Development LP
H02J9/06G06F1/263H02M7/02
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Quick Facts
Patent No.
US 10,840,734
App. No.
15/774,703
Granted
Nov 17, 2020
Kind
B2
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.

Claims (18)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 9, 2018
From: NGUYEN, HAI NGOC; BANERJEE, ABHISHEK
To: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
Reel/Frame 045752/0188 →
Continuity (1)
Related Publication 20180331551A1 · Nov 15, 2018
Cited By (1)
US 12,580,476