The present design exploits the above property of tunnel diodes by having a series connected set of these devices charge a battery with the aid of solar energy
The operating principle of this unique design is remarkably simple.
As seen in Fig seven or more Gallium-Indium Antimonide (GISp) tunnel diodes are series connected and titted on a large heatsink, which does not serve to dissipate their power (tunnel diodes get colder as Ur rises), but to effectively accumulate solar, or otherwise applied, heat, whose energy is converted into a charge current for the NiCd battery
When the load is itself a voltage source with fairly low internal resistance, the negative resistance must, of course, output a f higher voltage for the charge I current, Ic, to flow:
If a normal, pure, resistance, R, discharges a battery with current I=V/R, a negative resistance charges the same battery, since the sign of reverses —I:V/—R. Similarly, , when a normal resistance pates P=PR watts, a negative resistance delivers this wattage into the load; P=—l2—R.
The following circuit may be used for generating electricity from heat or warmth.
Credit- Elektor electronics
The operating principle of this unique design is remarkably simple.
As seen in Fig seven or more Gallium-Indium Antimonide (GISp) tunnel diodes are series connected and titted on a large heatsink, which does not serve to dissipate their power (tunnel diodes get colder as Ur rises), but to effectively accumulate solar, or otherwise applied, heat, whose energy is converted into a charge current for the NiCd battery
When the load is itself a voltage source with fairly low internal resistance, the negative resistance must, of course, output a f higher voltage for the charge I current, Ic, to flow:
If a normal, pure, resistance, R, discharges a battery with current I=V/R, a negative resistance charges the same battery, since the sign of reverses —I:V/—R. Similarly, , when a normal resistance pates P=PR watts, a negative resistance delivers this wattage into the load; P=—l2—R.
The following circuit may be used for generating electricity from heat or warmth.
Credit- Elektor electronics
