The Ferrite element has a dc resistance in excess of the dc resistance of the bridgewire so short circuiting the firing current does not occur.
The invention relates to a device for supplying at least one ignition power module with current by means of an ignition current supplied from an energy reserve (ER).
The initiation current is applied for a very short time and then discontinued.
The ignition-current path is completed by a voltage-discharge limiter (23).
The changes between the ignition current phases are counted, and a regulated speed is increased if the number of changes between the current phases reaches or exceeds a specified second threshold.
According to the invention, the ignition current (lzp) is continuously detected and compared with a specified first threshold.
In circuitries of the type used so far, amperage is measured during the ignition of a discharge lamp (LP) and is controlled by varying the frequency of this ignition current.
The bootstrap power supply is shut down by operation of a primary low voltage power supply or if operated for more than a few seconds.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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