CIRCUIT OF REDUCING NOISE IN DRIVING RELAY

摘要

PURPOSE: A circuit of reducing noise in driving a relay is provided to reduce noises when a worker operates a device including a delay, and thereby reducing psychological pressures at a workshop. CONSTITUTION: A transistor(100) provides the electric power to a coil(4) of a relay(300) if a base of the transistor(100) receives voltage applied from a battery. A condenser(200) adjusts the current strength of the electric power applied to the relay(300) from the transistor(100). An end of the condenser(200) is linked to a collect of the transistor(100) and the other end is linked to a ground. The relay(300) receives the electric power and controls to open or close for corresponding circuit according to a state of input value. A resistor(400) is linked to an output terminal of the second switch of the relay(300) and adjusts the current strength of the electric power outputted from the relay(300).