US Patent No. 10,716,179

SINGLE FIRE-WIRE BI-DIRECTIONAL POWER FETCHING AND DIMMER CONTROL SYSTEM


Patent No. 10,716,179
Issue Date July 14, 2020
Title Single Fire-wire Bi-directional Power Fetching And Dimmer Control System
Inventorship Chi-Jen Wang, New Taipei (TW)
Assignee LOONG YEE INDUSTRIAL CORP., LTD., New Taipei (TW)

Claim of US Patent No. 10,716,179

1. A single fire-wire bi-directional power fetching and dimmer control system, comprising:a dimmer circuit, connected in series to a single fire-wire, the dimmer circuit includes at least a dimmer driver, and two connected bi-directional power electronic components, wherein, one of the bi-directional power electronic components is disposed on an input end of the single fire-wire, and the other bi-directional power electronic component is disposed on an output end of the single fire-wire, through using the two bi-directional power electronic components, both a positive wave AC and a negative wave AC are used to perform phase conduction adjustment, wherein the dimmer circuit is a neutral-wire-free dimmer circuit;
a single fire-wire bi-directional power fetching module, connected in series to the dimmer circuit, and is disposed between the two bi-directional power electronic components, to perform single fire-wire power fetching when the dimmer circuit is conducting, the two bi-directional power electronic components are formed respectively by two separate high voltage high power MOSFETs, and the dimmer driver is an MOSFET dimmer driver, in which, a dimmer cycle ratio of the dimmer circuit is controlled to be in a range of 15% to 95%;
a high side buck, connected in parallel to the dimmer circuit, with one end of the converter circuit disposed on the input end of the single fire-wire connected to one of the two bi-directional power electronic components, and with the other end of the converter circuit disposed on the output end of the single fire-wire connected to the other of the two bi-directional power electronic components, wherein the high side buck converter circuit is a full-bridge rectifier; and
a DC to DC converter, with an input end of the converter for fetching power connected to the single fire-wire bi-directional power fetching module, and the high side buck; and with an output end of the converter for supplying power connected to the dimmer driver of the dimmer circuit, to perform single fire-wire bi-directional light dimming.