Switching circuit for connecting electrical equipment to controllable voltage source produces start signal and control signal over given time period

摘要

The start button switching circuit (STS) is connected to a battery (U-Batt). It produces a control signal (S3) and is connected to a voltage regulator (STE). It also has a connection to the electrical equipment (EG). The battery is connected to an input stage (E1) with resistors (Ra,Rb) and a switching transistor (T1). The system incorporates a difference circuit (HP) and a pulse generating circuit (IES).