Battery Tesla Switch 720 Watt Mosfet Circuits

Posted on Feb 6, 2014

The circuit uses a total of six, 12 volt lead acid batteries to power the load. 3 batteries are wired in series to create 36 volts. The total discharge current is 30 Amps. 3 batteries are wired in parallel to create 12 volts The total charge current is 10 Amps per battery. 20 Amps are lost to the environment as heat or work done by the load. This is the amount of energy that the environment needs to replace to keep the tesla switch running. A switching circuit is used to set the frequency by which the batteries are changed from series to parallel. When the switching frequency is high enough, the battery voltage should begin to increase under load. The copper wiring must be constructed from hundreds of thin copper strands, whilst keeping the circuit resistance to an absolute minimum. All of the connectors should be high quality copper or silver. The output voltage across the load will be approximately 24 volts, & this will have to be regulated in someway using the 555 switching circuit. The capacity of the batteries should be upwards of 40 amps, a small car battery is suitable. The batteries need to deliver 30 Amps through the load, while only getting 10 Amps charging. All of the batteries should have equal capacity & be in good condition.

Battery Tesla Switch 720 Watt Mosfet Circuits
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The mosfet drive circuits use isolated 12 volt regulated supplies which can deliver 50 mA. Dc to dc converters are available ready built, but you can make your own if you need more control over the circuit. The n type mosfet gates are driven between 0 volts & + 12 volts using transistor pairs, in the push pull fashion. Logic mosfets do not offer any advantage in this circuit, but they can be used if the gate voltage is held within its maximum swing. You can place many n type mosfets in parallel to reduce the circuit resistance. The push pull technique enables very fast charging & discharging of the mosfet gate capacitance, so paralleling mosfets is not a problem. The heatsinks you use on the components should reflect the amount of continuous current they will carry. On the diagram it shows 30 Amps & 10 Amps for the diodes, which might give you some idea where to place more mosfets in parallel. Reducing the circuit resistance is a real priority. Since all of the circuit components are constantly switching & are only being used 50 % of the time, this means that a 30 amp diode is only working at 50 % of its rated capacity. Twice the amount of power output is actually available, but only if the circuit resistance can be reduced to less than 0.1 Ohm. The circuit is capable of delivering 60 amps of current through the load in theory & delivering 1440 watts of power at the maximum. You should avoid making...

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