A power supply device and a method based on a single fire line power take-off module

Abstract

The invention discloses a power supply device and a power supply method based on a single-fire-line power take-off module, belonging to the technical field of electronic communication, comprising a power supply, a graded controllable constant current charging circuit, an energy storage element, an electronic switch, a controller and a single-fire-line power take-off module. The power supply is connected in series with the back-end electric appliance, and the single-fire-wire power-taking module is connected in series with the power supply circuit. The output end of the single-fire-wire power-taking module is connected with the input end of the stepped controllable constant-current charging circuit, the output end of the stepped controllable constant-current charging circuit is connected with the energy storage element, and the input end is connected with the controller. The controller and the energy storage element are connected with the communication module through an electronic switch. As that power taking module of the single fire line is serially connecte with the power supply circuit to take power, the invention adopts the step-by-step controllable constant current circuit tolimit the current magnitude of the communication equipment terminal, and adopts the energy storage element to supply power to the communication module, so that the instantaneous larger circuit can beprovided.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a power supply device and method based on a single live wire power-taking module. Background technique [0002] In the field of heating, central heating is generally adopted. In order to grasp the heating effect in time, it is necessary to install temperature collectors in residents' homes. Temperature collectors generally include battery-powered GPRS wireless room temperature collectors and mains-powered GPRS wireless room temperature collectors. The disadvantage of using battery-powered methods is that it needs to use a large number of batteries and is limited by the battery life. The disadvantage of adopting the mains power supply method is that it needs to occupy the sockets in the citizens' homes, which is inconvenient to use. [0003] At present, there are also cases where the single live wire technology is used to supply power to electrical appliances, bu...

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