Shopping Cart
Shopping Cart:  0  items
Total: $0.00

Constant Current PWM with LCD Controller


For more information on what a PWM is and how it works, please see What is a PWM?

Our Pulse Width Modulator is actually a number of devices combined into one unit. All of these devices are needed for proper control of an HHO system:

  1. On/off switch - Master switch for the whole system.
  2. Safety Shut-off, a vital safety feature - This system has 2 methods to detect when the engine isn't running, and shut itself down.
    1. First is by voltage sensing by the controller. The controller will watch the voltage that the system is receiving from the battery and alternator of your vehicle. If it goes below a certain voltage (adjustable in the controller), the system will shut down. Since the alternator puts out 13.5 to 14 volts when it is running, the system uses this method to detect when the alternator has stopped running and shut down the HHO system.
    2. By taking a wire from your fuel pump relay and connecting it to the PWM, the PWM will stop if power from the fuel pump relay is interrupted. The ECU will use the fuel pump relay to interrupt the flow of gas to the engine in the event that the engine shuts down for any reason.
  3. The Pulse Width Modulator itself, which can run at user selectable current or duty cycle.
  4. Constant Current Function: User selects the maximum current he wants the system to run. The PWM will never go over that current. When the current tries to go above the maximum current value, the duty cycle automatically reduces to maintain the current at its set maximum value. This prevents current run away that has been common with other HHO systems and PWMs
  5. Separate LCD Display/Controller giving a continuous read out of the system Amps, Volts, and Duty Cycle.
  6. One PWM can control any number of cells, up to 50 amps total. Note, we do not recommend running this PWM above 40 amps on a continuous basis.
  7. LCD Display/Controller can control multiple Slave PWMs. In this way you can run multiple cells or groups of cells at a higher total amperage.

Add to Cart:

  • Model: Constant Current PWM/Controller
  • Shipping Weight: 1.4lbs
  • 10 Units in Stock

This product was added to our catalog on Saturday 05 March, 2011.