| 摘要 |
A power supply unit of energy-saving fluorescent tubes comprises a safety device, diode bridge and filtering capacitors, dinistor drive circuit comprising dinistor, resistors, capacitors and diode, a n-p-n transistor blocking generator with diodes for protection from voltage surges, with resistors restricting current in emitter and base circuits and with resonance circuit comprising transformer primary coil, impedance coil and capacitors to one of which tube filaments are connected in parallel. In addition it comprises a blocking capacitor, threshold scheme resistor, fluorescent tube dc power supply circuit comprising diode, resistors, n-p-n transistor, resistor and/or diode of the tube ac decoupling circuit. |
