HHO PWM Generator  30 AMP | Adjustable Frequency from 100Hz to 4,100Hz (4.1KHz)
w/ built in 40AMP Relay, Fuse Protection and cooling fan
 

   


Comparison of our H-320B PWM to a DC motor controller.
                                         

FEATURES	OURS	OTHERS
Adjustable Duty Cycle
Adjustable Frequency
Built in 40 AMP Relay		NO
Built in Fuse Protection		NO
Power On/Off  LED
Built in Cooling Fan		NO
Built for HHO Generators		NO

All of our components are high grade components rated higher than what we specified.  We set the unit at 30AMP as most cars should not go over this rating to prevent high amp draw and possibly burning the MOSFET. But a good hydrogen generator will never need to go over 20AMP max.
 

 
Other PWMs (Pulse Width Modulator) are just DC motor control board.   Motor Drive PWMs may not be suitable for HHO production.  They are good for controlling the speed of motors and only come with a Potentiometer (POT) to control the duty cycle and the  frequency is FIXED!

Our PWM  was designed so you can experiment with your HHO Generators for greater efficiency.  Reduce heat & AMP draw from your hydrogen generator.

                                             H-320B PWM Benefits

• 1 POT to adjust the duty cycle:  0-100%

• 1 Trimmer to adjust the frequency:  100Hz to 4,100Hz (4.1KHz)
  Click here to see a  video of Duty and Frequency Test

• Come with 20amp or 25amp fuse ( Replaceable)

• Built in automotive 40AMP Relay

• Built in attached fan

• Easy wiring with your HHO system.  See diagram below

SAVE time and money with a built in 40AMP Relay, fuse protection and cooling fan! You don't need to buy an in-line fuse and an external RELAY when wiring your HHO system.  It's already incorporated into our PWM! This helps reduce your wiring!  Most hydrogen kits require you to buy those extra when wiring the HHO system.

Product Details:
- Power Source: 12V DC
- Load Voltage:  12V DC / 28 AMP continuous
- Full Range Duty Cycle. 0% - 100% (ADJUSTABLE)
- Frequency:  100Hz - 4,100Hz (Ships ~300Hz but is adjustable. IT IS NOT FIXED!)
- Built on board Automotive 12V/40 Amp Relay
- Built on board  Fuse Protection (REPLACEABLE)
- Power on LED
- Spade connectors
- Dimensions:  2.1" x 4.4"

Fully assembled board only & tested.  We guarantee against DOA. 
Includes detailed installation manual/instruction for easy hookup.

In stock and ready for shipment!

   Location of Duty Cycle and Frequency adjustment                  Excerpt from the instruction on how to hookup the PWM             
              

   

            FAQ:

1. Does your PWM make more hydrogen gas?
   The H-320B PWM  does not make more hydrogen/oxygen than direct DC does.  If other motor drive based PWMs claim to increase HHO production, then please do more reading on the internet to educate yourself.  You CAN adjust/vary the production of your HHO from 0 - 100% by adjusting the duty cycle POT.  With the frequency trimmer, you can try to experiment to find a resonating frequency to "shake" the gas off the cell plates at a more efficient rate.  Read up on "Brown Gas" 
    

2. How does the PWM work?
   Instead of a straight draw, the PWM  acts like a very fast switch pulsing on and off.  It does this at the frequency that it you set.  What the Cycle Range POT does is vary the ratio of the on to off times.  At full output it is on 100% of the time.  Like "on" for one count "off "for another count. The thing to keep in mind is that when "on" its like a closed switch so if your cell is pulling 30A when hot and you adjust the Cycle Range POT to give 15A on an ampmeter, you are actually drawing 30A paused by an off time of 0 amps then back on again to 30 amps at a very fast rate. What this means is that the PWM needs to be rated at 30 amp continuous even you never allow the ampmeter reading to go above 15 amps.
    

3. Why did you say you have a 30 AMP PWM and then you say you run at 28 AMP continuous?
   Our PWM's real peak current is rated at 49 AMP  Note:  Other 30AMP PWM controllers may describe their "peak current" AMPS but you should check the continuous current rating as that is important.  By putting a 25 AMP fuse or a lower rating fuse, you prevent any AMPs above the fuse rating to be drawn from your alternator.  If it does, you just blow the fuse.  With a 25 AMP fuse, adjusting the POT from 0% to 100%, you are adjusting the AMP draw from 0 AMP to 28 AMP.  If you draw over 25AMP, then the on-board fuse just blows.   Note: We recommend a well ventilated area or cooling fan if running above 20Amps.  We recommended that users do not run over 30 amp.  Also due to the nature of HHO Cell, a 25amp fuse will not blow at 25amp but rather at 30amp. For long operating life run the unit at lease 20% below the rated current. Just like your car, running at max speed on your speedometer all the time, your car will break down very quickly.
    

4. If I replace the fuse with a 20AMP fuse, will that force it to cycle between 0 and 20AMP?  I'm looking for 8-15AMP.
   Yes!  Again, by putting  in your rated  AMP fuse, in this case 20 AMP, you prevent any AMPs above the fuse rating to be drawn from your alternator.  So you are cycling between 0 and 20AMP with the duty cycle POT.  If your HHO generator gets crazy with runaway heat and draw more than 20AMPs, your 20 AMP fuse will blow.

We encourage people to experiment and keep experimenting.  HHO does work and it will be efforts of you and others that can help solve and reduce our dependency on fossil fuel.

FINE PRINT:  The purchaser is responsible and assumes all risks.  We shall not be liable for units damaged or damage to your cell or car by improper hook up or overloading! Use common sense and place PWM in ventilated area or use a fan to help cool the unit.  If you receive a unit DOA, we will replace the unit at no charge within 10 days.  Just return the unit and once we receive it and confirm its a defective unit, we will ship you a new one.
 
Due to the experimental usage of this product, the product sold is provided "AS IS" without warranty of any kind or refund on the product.  Seller disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose.
In no event shall the seller or its affiliate be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if seller or its affiliates have been advised of the possibility of such damages.  Do not bid if you do not agree with our conditions.  By bidding, you agree to the condition stated.

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