摘要 |
A low-power power supply for an electronic circuit uses an existing current input and converts the current to a higher voltage sufficient for supplying an electronic circuit. The input current generates a defined input voltage, which input voltage is initially generated by voltage drop by the input current passing at least one diode in the open direction of the diode. The input voltage, through a transistor, charges a plurality of switched capacitor networks in a first mode of operation, and in a second mode of operation, the switched capacitor networks are coupled in series for multiplying the input voltage to second higher voltage that is supplied to a oscillating circuit. The oscillating circuit drives the input current via a transformer and half bridge driver to convert a low voltage current supply from a low voltage current into a low current and higher voltage useable for supplying a small electronic circuit. |
主权项 |
1. Power supply for an electronic circuit, which power supply comprises an input current source, which input current source generate a DC current, which input current is used for power supply for an electronic circuit, wherein, in a first mode of operation, the input current is connected by a line to a first set of terminals of a switched capacitor networks, which input current further generates a defined input voltage, which input voltage is generated by a voltage drop by the input current, which input voltage is through a transistor and a line, connected to a second set of terminals at the switched capacitor networks and hereby charging the plurality of switched capacitor networks, the power supply is switched into a second mode of operation based on a switching signal, the switched capacitor networks being coupled in series serial for multiplying the input voltage to second higher voltage, which second higher voltage is supplied to a oscillating circuit, which oscillating circuit via transformer, half bridge driver and supplied output voltage generates the input current from the input current source. |