The parallel type “inverter”

THE DEVELOPMENT of the thyratron or three-element hot-cathode gas-filled tube with grid-controlled arc has given electrical engineeing a new tool. Many interesting and valuable applications have been devised, among the most interesting of these being the “inverter.” Its purpose is the inversion or changing of direct current to alternating current, the reverse process of the more usual rectification. With the advent of the thyratron with its high efficiency, low voltage drop, and its ability to handle the comparatively large amounts of power, the inverter gives promise of becoming of commercial importance.