鈮?/div>
90擄C for DO-214AA.
(8) See Figure 9.15 for clarification of Sidac operation.
(9) For best Sidac operation, the load impedance should be near or
less than switching resistance.
(10) Teccor's new, improved series of sidacs is designed to ensure
goodcommutationathigherswitchingfrequencies asrequiredinignitor
circuits for high intensity discharge (HID) lighting. A typical circuit
for a metal halide lamp ignitor is shown in the schematic, Figure
9.3. With proper component selection this circuit will produce three
pulses for ignition of Osram lamp types such as HQI-T70W, HQI-
T150W, and HQI-T250W which require a minimum of three pulses
at 4kV magnitude and >1碌s duration each at a minimum repetition
rate of 3.3kHz.
鈥?/div>
鈥?/div>
SIDAC
9-2
Teccor Electronics
(972) 580-7777
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