US 2015/0309522 A1Published application

Control Method and Apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorQingyin Fang

Life of this patent

Estimating the term…

Loading patent…

Abstract

A control method and apparatus are provided. The apparatus includes a switch module, a control module, and a power supply source conversion module, where the switch module includes at least two switches, each switch is connected to each control module, a high-level or low-level signal is provided for each control module by closing the switches; the control module controls, according to a state of each signal received by the control module, a power module to supply power to or power off a load, and when states of all received input signals are different, allows the power supply source conversion module to maintain a state of supplying power to the load, so that a power-supply or power-off operation on the load is easy and convenient and the state of supplying power to the load can still be maintained when a switch is faulty.

Claims8

Dependent claims

A control apparatus, comprising:

a switch module;
a control module;
and
a power supply source conversion module,
wherein the switch module comprises at least two switches, wherein when first ends of the at least two switches are grounded, second ends of the at least two switches are connected to a power supply source by using a pull-up resistor and are connected to at least one control module, wherein when power needs to be supplied to a load, the at least two switches are closed, to provide a low-level input signal for the at least one control module, and wherein when power does not need to be supplied to the load, the at least two closed switches are opened, to provide a high-level input signal for the at least one control module, or
wherein when the first ends of the at least two switches are connected to a power supply source, second ends of the at least two switches are ground by using a pull-down resistor and are connected to at least one control module, wherein when power needs to be supplied to a load, the at least two switches are closed, to provide a high-level input signal for the at least one control module, and wherein when power does not need to be supplied to the load, the at least two closed switches are opened, to provide a low-level input signal for the at least one control module,
wherein the control module is configured to, when all received input signals are low-level signals and the first ends of the at least two switches in the switch module are grounded, or
wherein when all received input signals are high-level signals and the first ends of the at least two switches in the switch module are connected to the power supply source, allows the power supply source conversion module to supply power to the load, or
wherein when states of all received input signals are different, allows the power supply source conversion module to maintain a state of supplying power to the load, and
wherein the power supply source conversion module is connected to the control module and is configured to, according to an instruction of the control module, supply power or supply no power to the load.

7 more elements

A control method, comprising:

when power needs to be supplied to a load, a first end of each switch in a switch module is grounded, and a second end of each switch in a switch module is connected to a power supply source by using a pull-up resistor and is connected to at least one control module, closing each switch in the switch module, to provide a low-level input signal for the at least one control module, when power does not need to be supplied to the load, opening each switch in the switch module, to provide a high-level input signal for the at least one control module;
or
when power needs to be supplied to a load, a first end of each switch in a switch module is connected to a power supply source, a second end is ground by using a pull-down resistor and is connected to at least one control module, closing all the switches in the switch module, to provide a high-level input signal for the at least one control module, when power does not need to be supplied to the load, opening each switch in the switch module, to provide a low-level input signal for the at least one control module;
receiving, by the at least one control module, an input signal sent by the switch module, and when all received input signals are low-level signals and the first ends of the at least two switches in the switch module are grounded;
or
when all received input signals are high-level signals and the first ends of the at least two switches in the switch module are connected to the power supply source, allowing the power supply source conversion module to supply power to the load;
or
when states of all received input signals are different, allowing the power supply source conversion module to maintain a state of supplying power to the load.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/793,414Filed 7 Jul 2015
Priority: CN 201310198451.624 May 2013
Published: 29 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G05F 1/66
Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and…:…
G05B 15/02
Systems controlled by a computer: electric
G05F 1/46
Regulating voltage or current: wherein the variable actually regulated by the final control device is DC
G06F 1/263
Power supply means, e.g. regulation thereof: arrangements for using multiple switchable power supplies, e.g. battery and AC