摘要 |
<p>A circuit for a controlled operating voltage for a data carrier comprises an NMOS control transistor (3) joined to a voltage input (2,4) and controlled voltage output (5) (VCC). A charge pump (6) to increase a control voltage connects to the control (7) via another charge pump stage and a control (10,11) connects to the control unit if the voltage is below a threshold. An independent claim is also included for a control process for the above circuit.</p> |