This is an electronic Jacobs Ladder, not a microwave oven / neon sign transformer one. It uses a dual igbt half bridge driving two 12 kV transformers in anti-phase. The result is 24 kV output at 0.25 amps. This gives 6 kW of peak electrical power at 20 kHz frequency. The theory of the jacobs ladder is that the high temperature gass rises due to its buoyancy and because of convection currents, this carries the arc upwards until the voltage reaches the powersupply maximum or the end of the electrodes are reached. Either way the arc extinguishes and the high electrode voltage is enough to start another arc where the electrodes are closest at the bottom of the ladder.
Sunday, January 13, 2013
Jacobs Ladder
Jacobs Ladder Video Clips. Duration : 1.40 Mins.
This is an electronic Jacobs Ladder, not a microwave oven / neon sign transformer one. It uses a dual igbt half bridge driving two 12 kV transformers in anti-phase. The result is 24 kV output at 0.25 amps. This gives 6 kW of peak electrical power at 20 kHz frequency. The theory of the jacobs ladder is that the high temperature gass rises due to its buoyancy and because of convection currents, this carries the arc upwards until the voltage reaches the powersupply maximum or the end of the electrodes are reached. Either way the arc extinguishes and the high electrode voltage is enough to start another arc where the electrodes are closest at the bottom of the ladder.
This is an electronic Jacobs Ladder, not a microwave oven / neon sign transformer one. It uses a dual igbt half bridge driving two 12 kV transformers in anti-phase. The result is 24 kV output at 0.25 amps. This gives 6 kW of peak electrical power at 20 kHz frequency. The theory of the jacobs ladder is that the high temperature gass rises due to its buoyancy and because of convection currents, this carries the arc upwards until the voltage reaches the powersupply maximum or the end of the electrodes are reached. Either way the arc extinguishes and the high electrode voltage is enough to start another arc where the electrodes are closest at the bottom of the ladder.
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