| 摘要 |
<p>PURPOSE:To reduce the size and to enhance the efficiency of a power source circuit by employing both a series regulator and a converter type switching regulator. CONSTITUTION:A power source circuit has a series regulator 1 which commonly inputs a commercial power, and a ringing choke converter type switching regulator 2 which has power conversion efficiency higher than the regulator 1. The regulator 1 supplies as a DC output voltages +V1, -V2 to the interior of the power source circuit as a preheating power. The regulator 2 supplies main power output converter 5.</p> |
