The efficient electronic ballast is composed of rectifier-filter circuit, high-frequency inverse transforming circuit, power regulation circuit and filament preheating circuit.
本发明提出了一种高效电子镇流器，由整流滤波电路、高频逆变电路、功率调节电路及灯丝预热电路组成。
Influence rules of air intake preheating on revolution speed, starting time and HC emission in the starting process of electronic controlled diesel engine were acquired.
得出了进气预热在电控柴油机起动过程中对转速、起动时间、HC排放的影响规律。
应用推荐