Fluorescent lamp power supply inverter - has two transistors and additional source providing base current necessary for their correct saturation (NL 24.10.78)

摘要

The inverter has two transistors which have earthed emitters. Their collectors are connected with each other through a capacitor, and through windings to a centre point at the supply DC voltage. Their bases are connected with each other by an inductance coupled with collector winding and forming a base voltage generator. The inverter has an additional current supply for the bases of both transistors. This current supply is used to feed through two suitable resistors a current necessary for correct saturation of the transistors.