Wirelessly chargeable energy storage apparatuses having actively modifiable output voltages

An apparatus comprising:

• an antenna for receiving a radio frequency (RF) signal;
• and
• a circuit coupled to the antenna, the circuit including:
• power reception circuitry coupled to the antenna and configured to convert the RF signal to a direct current signal;
• and
• voltage regulator circuitry coupled to the power reception circuitry to receive the direct current, and configured to:
• induce, at a first node coupled to a second node by way of a resistor, a feedback voltage representative of an internal state of the apparatus;
• and
• regulate an output voltage (VOUT) at the second node based on the feedback voltage.

A method comprising:

• converting, by power reception circuitry, a radio frequency signal to a direct current signal;
• inducing, by voltage regulator circuitry coupled to the power reception circuitry to receive the direct current, and at a first node coupled to a second node by way of a resistor, a feedback voltage representative of an internal state of the circuit;
• and
• regulating an output voltage at the second node of the circuit based on the feedback voltage.