Continuous power supply circuit controlled by a reversible converter

摘要

An electricity supply circuit (1) typically comprising a rectifying diode (4) and capacitor (3) and suitable for supplying a watch motor may receive supply from an intermittent source (G). Supply is given to the watch motor through terminals (VDD,GND) and parallel terminals (B1,B0) are used to connect a convertor and storage unit (5,6). The convertor includes an (A) network of four static switches (T1-T4) and a rectifying diode (D). The static switches are preferably field effect transistors and signals (s1-s4) applied to their bases allow conversion from a lower input voltage (V1) to a higher capacitor storage voltage (V2) or alternatively from this higher voltage (V2) to the watch supply voltage (V1).