Vibrator

Patent Granted In electronics before the development of switch-mode power supplies and the introduction of semiconductor devices operating off low voltage, there was a requirement to generate voltages of about 50 to 250V DC from vehicle batteries. Electromechanical components known as vibrators were used in inverter circuits to provide an alternating current (AC) electric power supply from a direct current (DC) source, which could be converted to a higher voltage with a transformer, rectified, and filtered to create higher-voltage DC.