| 摘要 |
<p>A procedure and an apparatus for producing an a.c. voltage, in which procedure the a.c. voltage (uo) is produced via inversion from a d.c. voltage (UA). The d.c. voltage (UA) is produced by a generator (4). Moreover, the d.c. voltage (UA) is measured and stabilized. The frequency of the a.c. voltage is determined by means of an oscillator (9).</p> |
