the high-pressure reservoir capacitor II Ignition Ignition enhance and slow speed of the secondary ignition coil induces a high voltage spark, HID xenon gas inside the lamp is activated, another way power transformer balanced capacitor through recoil after previously provided by the resistor voltage II...
Pin 5 is connected, through a limiting resistor R5, to the auxiliary winding T1B of the inductor T having the primary winding T1A. Pin 5 provides a zero coil current and voltage function for the P.F.C. controller U1A which processes the inductor signal derived from auxiliary winding T1B ...
As illustrated, resistor 156 is connected with a first direct current (“DC”) power source 180, the output of the control unit 102 and resistor 158. Resistor 158 is further connected with diode 174, resistor 160 and capacitor 168. The first DC power source 180 is connected with capacitor ...
capacitor C13 charges through resistor R12 until the breakdown voltage of spark gap SG1 is reached. Spark gap SG1 may have a breakdown voltage of, for example, 350 volts. When the breakdown voltage is reached, spark gap SG1 conducts to complete the loop including capacitor C13 and winding W4...
Pin5(TM) of the P.F.C. controller U1A serves as the input zero current detector. Pin5is connected, through a limiting resistor R5, to the auxiliary winding T1B of the inductor T having the primary winding T1A. Pin5provides a zero coil current and voltage function for the P.F.C. con...
Ignition of the high pressure lamp will be as follows: Resistor R5 is the charging resistor for the capacitor C5, while resistor R6 is the charging resistor for capacitor C6. As the voltage increases on the capacitor C5, the voltage of the capacitor C6 will be reduced. When the voltage of...
(NC position). This allows the battery BT1to supply current through coil K4and diode D4to the drain of transistor Q2. Current is also provided to transistors Q3and Q4which are driven into saturation resulting in a current flow through the primary P1of the inverter Iv. Resistor R12is given ...
capacitors 32 and 34. Diode 70 serves to prevent discharge from capacitors 32 or 34 from causing unwanted current flow into coil 22b while resistor 72 serves to limit current in that circuit leg to capacitors 32 and 34 and acts as a filter in conjunction with capacitors 32 and 34 for pin...
The electronic ballast 102 comprises at least two resistors R8 and R10 arranged at least in a series connection relative to each other for measuring and/or regulating the currents of said at least two switching transistors Q1 and Q2, said resistor R8 being in connection with the switching ...
This paper presents a versatile ballast for discharge lamps, whose operation is based on the notion of a loss-free resistor (LFR). The ballast consists of two stages: (1) a boost converter operating in continuous conduction mode (CCM) and exhibiting an LFR behavior imposed by sliding-mode co...