| 摘要 |
<p>The invention concerns a double power supply for an electricity meter comprising a voltage rectifier (10) to be connected on the power system and delivering a direct current voltage in output, a chopper controller (12) connected in output to the rectifier (10) and delivering in output a voltage in strobes, a diode connected in parallel to the chopper output, a first inductance (16) connected in series to the rectifier (10) output, an integrating circuit (18) comprising an inductance (20) connected in series to a first capacitor (22) so as to form an inductive voltage divider, a first direct current voltage being delivered to the terminals of the first capacitor (22), a second direct current voltage being delivered in output of the integrating circuit (18). The invention is applicable to electricity meters.</p> |
