Wearable energy harvesting device

A wearable energy harvesting device, comprising:

• a harness configured to be attached to a human leg, the harness comprising an upper portion and a lower portion, wherein the upper and lower portions each have an inner support member and an outer support member, the inner support members configured for placement along an inside of the human leg and the outer support members configured for placement along an outside of the human leg opposite the inner support members, wherein the upper portion is connected to the lower portion by an inner hinge disposed between an upper inner support member and a lower outer support member,
• a pendulum assembly attached to the harness and configured to oscillate in response to human body motion, the pendulum assembly comprising:
• a pendulum;
• a flywheel mechanically coupled to the pendulum:
• a plurality of pulleys including at least a first pulley mechanically connected to the flywheel and a second pulley having a smaller diameter than the first pulley and mechanically connected to a ratchet gear;
• a belt connecting the first pulley to the second pulley;
• and
• an electromagnetic generator mechanically coupled to the ratchet gear;
• wherein the pendulum is disposed between an outer hinge, which is disposed on a lower inner support member, and the flywheel.