| 摘要 |
A device is used for doubling a direct-current voltage, for example doubling +12 volt to 24 volt. The device comprises a transformer and change-over devices in the form of a pair of transistors. A direct-current voltage with a first value is connected to a central tap on the winding. The ends of the winding are connected to change-over devices which alternately bring about changes in potential of the said ends and thereby create direct-current voltage signals with the higher value by means of the transformer's counter electromotive force. |
