© 2025 GPEnergy. All rights reserved.
© 2025 GPEnergy. All rights reserved.
Edwin Gray's conversion tube harnessed displacement current via HV pulses (3kV, >500 V/ns rise, 3ns width) across tungsten rods and copper meshes, converting conduction current to dominant "cold" RDC for 2-6x efficient DC load powering with energy recovery.
Modern solid-state tech (SiC/GaN transistors) enables similar harnessing without tubes: Pulse HV capacitors through fast switches, inducing RDC in dielectrics (e.g., ceramics/PCBs), achieving precise control, lower losses, and higher efficiency for loads/recovery.
Handle HV (3kV+); insulate; ventilate; disconnect batteries during wiring; wear glasses.
Drill ends for tungsten rods (5cm apart); insert copper meshes as grids (1-2cm spaced); seal with epoxy; wire high anode to cap -, low anode to pulse, grids to load +.
verilog
module pulse_gen (
input clk, // 12MHz clock on UPduino
output reg pulse = 0
);
reg [19:0] counter = 0; // For ~100Hz (12e6 / 120000 = 100Hz)
always @(posedge clk) begin
counter <= counter + 1;
if (counter == 119999) begin // Reset at 100Hz
pulse <= 1;
counter <= 0;
end else if (counter == 1) begin // ~83ns pulse (1 clock cycle)
pulse <= 0;
end
end
endmoduleAdjust for exact 3ns if needed; FPGA clock limits min pulse to ~83ns, but effective for dV/dt.
Power on; check 3kV at cap; scope pin 25 for pulses; run load; monitor runtime 35-71 min; thermal <60°C; submerged bulb test.
No spark: Check booster voltage, pulse width. Slow charge: Adjust code to 1Hz (counter to 12e6-1). Arcing: Insulate HV. Cap failure: Replace if overvolt. UPduino: Reinstall driver, recompile.
Handle HV; insulate; ventilate; disconnect during wiring.
verilog
module pulse_gen (
input clk,
output reg pulse = 0
);
reg [19:0] counter = 0;
always @(posedge clk) begin
counter <= counter + 1;
if (counter == 119999) begin
pulse <= 1;
counter <= 0;
end else if (counter == 1) begin
pulse <= 0;
end
end
endmoduleCheck 3kV cap; scope pulses; run load 35-71 min; thermal <60°C; submerged bulb.
No pulse: Check code/driver. Low output: Adjust booster. Overheat: Add heatsink to MOSFET.
GPE uses PWM (100 Hz, 33% duty) from Arduino Nano to switch 36V boosted DC via IRL540N MOSFET and VOD3120AD gate driver, powering loads (e.g., 775 motor, 12V bulb) at ~12V average. Flyback diodes (1N4007) and STPS10H100CT capture spikes; supercaps store energy, buck converter (IPS-DTDYI48S1215) recycles 10-30% to battery, extending runtime 11-43%. Circuit requires isolation (separate main/iso grounds) to prevent interference, inspired by Edwin Gray's conversion tube in his prototypes and models, providing electrostatic isolation via spark-gap between HV input and LV output.
Copyright © 2025 Gray Pulse Energy - All Rights Reserved.
Powered by GoDaddy
We use cookies to analyze website traffic and optimize your website experience. By accepting our use of cookies, your data will be aggregated with all other user data.