PWM Controller

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The Hydrogen Injection Community is Burnt

When we purchased our 3rd, 4th and 5th PWM Controller from a popular auction site - and they all blew smoke, we knew we had to build a Heavy-Duty PWM Controller meant for continuous use to control on-board hydrogen generators.

Check out our latest breakthrough in hydrogen injection.

12v 0-50a PWM Controller Heat is removed from the controller on a constant basis. In order to simplify the design and thereby the costs associated with building a pulse width modulated pwm controller, we chose a controller chip that was designed specifically for that purpose.  Some of the advantages are: a built in five volt regulated power supply to allow accurate current and temperature measurements;  several built in comparator inputs for pulse width control; dedicated shut down input for safety switch monitoring; and a built in oscillator.  Since all of this is on one integrated circuit (ic), the circuit board doesn稚 need to contain a lot of parts which are all potential failure points.  We also use a  dedicated high amperage mosfet driver ic.  We have successfully tested it on our controllers controlling from four 62 amp mosfets to fifteen  62 amp mosfets which is over 900 peak amps!   Also we only use components that are rated to at least 105c or 200f  even though our circuit board should never come close to those temperatures.      PWM Controller Heatsink with Mosfets Heat-generating mosfets are imedded into the heat-sink which is seperate from the electronic board.  Our controller is designed to run on a constant basis - perfect for use with hydrogen generators. Another way we have tried to simplify our controllers as well as assuring a cool running circuit board is by not only isolating the main heat generating devices ie the mosfets and freewheel diodes, but also the circuits that carry the power to and from those devices.  If you look at how most  pwm controllers are built, you will see that the power to and from the mosfets and diodes is carried on the foil traces located on the circuit board.   Not only does that require huge copper traces and in some cases a great deal of solder being added to handle the current, but the circuit board is being used as a heat sink.  In addition to heating up the components on their circuit board, often times the traces still aren稚 heavy enough to carry the current that the mosfets demand so they just plain melt. As you can see, there is more to adding additional power in those designs than installing larger amperage mosfets since the circuit board is the weak link.   PWM Controller Running (2) 2LPM HHO Generator Another advantage our controllers have is the ease of upgrading for more power even though you shouldn稚 need to since our smallest controller for HHO generator use contains (four) sixty-two amp mosfets for a peak of 360 amps or 60 amps continuous.   Another side benefit from this design is that if something catastrophic happened and burned up the mosfets, no damage is done to the circuit board.  Imagine that.  Something electronic that is made to be repaired instead of thrown away.

Check out our latest breakthrough in hydrogen injection.