Circuit for controlling multiple diodes e.g. light emitting diodes has supply voltage composed of operational amplifier whereby operational amplifier is bridged by decoupling diode with substring through high impedance of light element

摘要

Circuit has multiple light diodes (LD1,LD2) which are arranged in a row forming strings and substrings (TK1,TK2) whereby supply voltage (V1) is amplified through operational amplifier and output of this amplifier is connected to substring through decoupling diode. The substring having high impedance of the diode is electrically bridged by the operational amplifier and the decoupling diode. An independent claim is also included for the method to control multiple diodes.