| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a circuit device which determines definitely an ignition energy beforehand, and carries out ignition of a discharge lamp, and a method for performing ignition of the discharge lamp. <P>SOLUTION: The primary circuit has two decoupled voltages, namely, a first voltage (U1) which is lower than a threshold of a first switch (SG) and is correlated substantially with the energy of ignition pulse and a second voltage (U2) which controls the switching timing of the first switch (SG). <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
