Power supply apparatus and electronic equipment
First Claim
1. A power supply apparatus comprising:
- an electromagnetic energy conversion unit for collecting electromagnetic energy from a radio wave that propagates through air and converting the electromagnetic energy into AC power;
a rectifier unit for rectifying the AC power into DC power;
a voltage step-up circuit for stepping up a voltage of the DC power;
a storage battery connected to be charged with the DC power and which discharges the charged DC power to a load; and
a control unit for controlling the charging and discharging of the storage battery.
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Accused Products
Abstract
To provide a power supply apparatus that replaces a dry battery by detecting electric field energy in a free space, rectifying the energy, extracting the energy as electric power, and accumulating the electric power. In particular, there is provided a power supply apparatus that is useful for a portable electronic equipment. An electromagnetic energy conversion unit collects a radio wave propagating in the air and converts collected electromagnetic energy into electric power. A rectifying unit generates electric power having a DC waveform by rectifying electric power having an AC waveform and charges the rectified electric power having the DC waveform into a secondary battery. An electric load is supplied with the rectified electric power having the DC waveform or with electric power having a DC waveform discharged from the secondary battery.
77 Citations
101 Claims
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1. A power supply apparatus comprising:
- an electromagnetic energy conversion unit for collecting electromagnetic energy from a radio wave that propagates through air and converting the electromagnetic energy into AC power;
a rectifier unit for rectifying the AC power into DC power;
a voltage step-up circuit for stepping up a voltage of the DC power;
a storage battery connected to be charged with the DC power and which discharges the charged DC power to a load; and
a control unit for controlling the charging and discharging of the storage battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
- an electromagnetic energy conversion unit for collecting electromagnetic energy from a radio wave that propagates through air and converting the electromagnetic energy into AC power;
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37. A power supply apparatus comprising:
- an electromagnetic energy conversion unit for collecting electromagnetic energy from a radio wave that propagates through air and converting the electromagnetic energy into AC power;
an input terminal that is brought into contact with a human body to input the radio wave via the human body;
a rectifier unit for rectifying the AC power input from the electromagnetic energy conversion unit or the input terminal and outputting DC power;
a voltage step-up circuit for stepping up a voltage of the DC power;
a storage battery connected to be charged with the DC power and which discharges the charged DC power to a load; and
a control unit for controlling the charging and discharging of the storage battery. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
- an electromagnetic energy conversion unit for collecting electromagnetic energy from a radio wave that propagates through air and converting the electromagnetic energy into AC power;
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75. A power supply apparatus comprising:
- an input terminal that is brought into contact with a human body to input electromagnetic energy from a radio wave propagating in the air via the human body;
a rectifier unit for rectifying AC power input from the input terminal and outputting DC power;
a voltage step-up circuit for stepping up a voltage of the DC power;
a storage battery connected to be charged with the rectified DC power and which discharges the charged DC power to a load; and
a control unit for controlling the charging and discharging of the storage battery. - View Dependent Claims (76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
- an input terminal that is brought into contact with a human body to input electromagnetic energy from a radio wave propagating in the air via the human body;
Specification