ENERGY SUPPLY CIRCUIT WITHOUT POWER CONVERTER AND ELECTRONIC DEVICE USING SAME

摘要

The present invention relates to an energy supply circuit for instantly supplying power without a power converter and an electronic device which operates only when energy is supplied from an energy source using the same. An energy supply circuit without a power converter according to the present invention comprises: an energy extraction unit (10) for generating power from an energy source; and output unit(20)for supplying power to an external electronic circuit; a switch unit (30) interposed between the energy extraction unit (10) and the output unit(20) to connect an output end of the energy extraction unit (10) to the output unit (20) when switched on; and a maximum power point tracking control unit(40) for generating an open/closed signal for opening or closing the switch unit (30) according to the voltage and current of the energy extraction unit (10). The present invention has a technical feature wherein a turn-on point of the open/closed signal comes at a time when the output end voltage of the energy extraction unit (10) is Vh, and a turn-off point comes at a time when the output end voltage of the energy extraction unit (10) is Vl. Accordingly, the present invention has a simple configuration, low manufacturing costs, has no energy loss due to the power conversion, and has no reduction in life due to charging and discharging of an energy storage device.