LED DRIVING DEVICE FOR DYNAMIC SEGMENT CONFIGURATIONS AND THE LED LIGHTING APPARATUS THEREOF

摘要

The invention discloses an LED driving device for dynamic segment configurations and the LED lighting apparatus thereof, wherein, the said LED driving device includes a first adjustable LED lamp string unit, a first N-type switch module, at least one second adjustable LED lamp string unit, one unidirectional conduction unit, one P-type switch module, one second N-type switch module, control logic module and current detection module; the control logic module outputs control signals, based on output voltage changes from the bridge rectifier, to control the on and off states of the first adjustable LED lamp string unit, the adjustable LED lamp string module, the P-type switch module, the first and second N-type switch module, also it adjusts the parallel and serial connection states of the first and second adjustable LED lamp string units dynamically. The invention adopts the dynamically configuring technology, improving the lighting effects and the utilization of LED lamps.

主权项

1. An LED driving device for dynamic segment configurations, connecting to a bridge rectifier, wherein, the LED driving device comprises:
a first adjustable LED lamp string unit, a first N-type switch module, at least one adjustable LED lamp string module, at least one P-type switch module, at least one second N-type switch module, a control logic module, applied to control the first adjustable LED lamp string unit, the adjustable LED lamp string module, the P-type switch module, the first N-type switch module and the second N-type switch module, as well as a current detection module, applied to detect the output currents from the first N-type switch module and the second N-type switch module before feeding back to the control logic module; the adjustable LED lamp string module comprises a second adjustable LED lamp string unit and a unidirectional conduction unit; and a control logic module outputs control signals, based on the output voltage variations from the bridge rectifier, to control the turn-on and turn-off states of the first adjustable LED lamp string unit, the adjustable LED lamp string module, the P-type switch module, the first N-type switch module and the second N-type switch module, also it adjusts the serial and parallel connection states of the first and the second adjustable LED lamp string units dynamically.