Level shifter for unidirectional transmission of signals from between circuit paths, has capacitive voltage divider circuit switched between reference potentials of low and high sides, and diodes connected between supply and control inputs

摘要

The shifter has an input (IN) connected with a control input of a switching transistor (M1) or high voltage transistor (HV1), and a capacitive voltage divider circuit connected in parallel to other high voltage transistors (HV2 to HVn). The circuit is switched between reference potentials (gnd-ls, vdd-hs) of low and high sides and nodes (X2-Xn) that are arranged between capacitors (C1-Cn). The capacitors are connected with control connections of the transistors and with diodes (D2-DN), which are connected between an input-sided voltage supply and control inputs of the transistors.