APPLIANCE PROVIDED WITH A DEVICE FOR GENERATING ELECTRICAL ENERGY FROM THE ENVIRONMENT AND WITH A DEVICE ELECTRONICS SYSTEM WITH VERY LOW POWER CONSUMPTION

摘要

The invention relates to a device (1) with a device (2) for generating electrical energy from the environment, said device (2) is a DC voltage source (3), and with a device electronics (5) with very low power consumption and with a Spannungsbegrenzerschaltung (6), which is arranged between the DC voltage source (3) and the device electronics (5), wherein the DC voltage source (3) and the Spannungsbegrenzerschaltung (6) have a common reference potential (7). The voltage limiter circuit (6) has a voltage reference (V1) and a comparator (9) which compares the DC voltage (V2) generated by the DC voltage source (3) with the voltage reference (V1), and the voltage limiter circuit (6) has one from the comparator (9) activatable lowering circuit (10) which, when activated, pulls down the output side of the DC voltage source (3) to the reference potential (7), the lowering circuit (10) being activated by the comparator (9) as long as that from the DC voltage source (3) generated DC voltage (V2) is greater than the voltage reference (V1), wherein the comparison device (9) comprises a differential amplifier (Q1, Q6) with a low quiescent current.