Title :
A complementary Class D converter
Author :
Nerone, Louis R.
Author_Institution :
GE Lighting, Cleveland, OH, USA
Abstract :
High voltage integrated circuits (HVIC) drive the popular half-bridge topology but they often cost more than the transformers they replace. This paper introduces a novel complementary Class D (CCD) converter with a unitary drive signal that avoids complicated level shifting and bootstrap circuits. A simple, low cost, passive gate control system with triggerless starting, drives a complementary, source connected pair of MOSFETs. Applications of the CCD include compact fluorescent ballasts. The paper also shows how to control the CCD with a low voltage IC, thereby uniting the power converter with its active control, as one, low cost, monolithic IC. Power is directed to the IC via a unique charge pump.
Keywords :
bridge circuits; fluorescent lamps; lamp accessories; monolithic integrated circuits; power MOSFET; power convertors; power integrated circuits; active control; charge pump; compact fluorescent ballasts; complementary Class D converter; converter control; half-bridge topology; high voltage integrated circuits; low cost monolithic IC; low voltage IC; passive gate control system; power converter; source connected MOSFET pair; triggerless starting; unitary drive signal; Charge coupled devices; Circuit topology; Control systems; Costs; Electronic ballasts; Fluorescence; MOSFETs; Monolithic integrated circuits; Transformers; Voltage control;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.729921
