LED LAMP DRIVING POWER CONTROL CIRCUIT

摘要

PURPOSE: providing a kind of circuit, for save business electric energy direct-drive LED lamp and solar battery the sun which can permanently use. If when solar energy is insufficient, the power of non-attended light, so as to by alternating current. CONSTITUTION: the circuit includes the whether enough voltage of the voltage of voltage detecting region (20) measurement solar battery for driving LED light (70) to power, LED light controls signal (12) and controls lamp ON/OFF, logic circuit (30) selects and determines power supply, lamp is supplied in solar energy and the alternating current, according to the lamp control signal detected and by voltage regime, the region of power switch (50) applies or cuts off a kind of region (50) in the switch drive region (40) of relevant power and driving switch. Therefore operation lamp can be continuously fed.