LED LAMP STRING CONTROL CIRCUIT AND LED LAMP STRING CONTROLLER

摘要

An LED lamp string control circuit and an LED lamp string controller, relating to the field of LED drive control. The control circuit comprises: a time sequence control circuit board (1) and a drive control circuit board (2). The time sequence control circuit board (1) comprises: a clamping circuit (11), a first single-chip microcomputer (MCU1), a voltage-dividing circuit (12) and a reset circuit (13). The drive control circuit board (2) comprises a plurality of LED drive circuit groups (21, 22), each LED drive circuit group comprising a plurality of LED drive modules (201) connected in series. Clamping is performed on a ground end of the single-chip microcomputer so as to ensure that the single-chip microcomputer can operate at a voltage of 24V, driving of a string having hundreds of lamps is implemented via a clamped voltage powering rear level driving, thereby increasing the length of the driven lamp string and implementing a long-distance LED lamp string design, and the lamp string transmits a trigger signal, enabling lamp strings in a long design having a plurality of lamp strings to be controlled together to flash in an integrated and consistent manner, further improving a product effect.