JedOs86

Mike: Taking a second look at the schematic you offerd, arent the transistors that are attached to the collectors always on? Shouldnt those second NPNs actually be PNPs?

I have seen different site using 556 set up as one timer in astable controlling a second timer in monostable mode. Other sites show PWM by using only one 555 timer set up in astable mode. I would really rather use only one 555 timer, but what is the upside to using a setup with a 556 timer?

Theatronics thanks for the diagram, I really appreciated that you took time to help me on this! I have decided to go with a design that I had in mind, which was earily similar to what you drew up for me. I'm just glad that you came up with a similar design , it shows that this might work afterall ;) . I might post the new schematic up later.

Thanks Theatronics, that clears up most of the issues. But with the combination of the diode voltage drop, and the pic output which probobly wont be anything more than 4.5 volts, will the MOSFET still function? a voltage drop of .7 with 4.5 volts is about 3.8 volts. The MOSFET can't hardly function at this? This was my intended question, becuase I was told that a PIC output could handle a dozen these particular MOSFETs.

LMAO, I forgot to mention what it was that I needed help on. I was concerned about the required voltage to turn on the mosfet, and if in combination with the diode and the pic output, if it would even see this voltage.

The IPS1031 is a Low-Side MOSFET Driver that drives its own MOSFET. I am planning on incorporating it into my design, but most of its spec sheet is total gibberish to me. I am driving two of them off of a single PIC output which can sink 3.7-5V @ 25mA. The IPS1031 datasheet: http://www.irf.com/product-info/datasheets/data/ips1031.pdf Attached is a schem I used for its simulations purposes. Through the use of "OR" diodes, only two IPS1031s are on at any single time; Q2 is saturated when either Q1 or Q3 is saturated. S1 and S2 signafy two different PIC Outputs.