PROTHERM electrical components German PROTHERM models PROTHERM prices

PROTHERM electrical components are devices that convert alternating current into direct current, and can be used in power supply units and for detecting radio signals, among other applications. Rectifiers can be made from vacuum tubes, ignitrons, solid-state silicon semiconductor diodes, mercury arcs, etc. Conversely, a device that converts direct current into alternating current is called an "inverter". In standby UPS systems, only battery charging is required, not power supply to the load, so only a charger is present. In double-conversion UPS systems, this device supplies power to the inverter and also charges the battery, hence it is called a rectifier/charger. A rectifier is a