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  1. Arouse1973

    Need Some Help Finding the Right MOSFET

    Hi Dan So you need a 4.2 V lipo rated at 1000 mA/h? Adam
  2. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    Hi Hop Ok so I got the circuit working by using it's own capacitance. The 1uF capacitor was no where near big enough, especially when the battery voltage reduced. The problem is the pull up resistor for the switch. When I had some initial issues with the first PIC10F200 I used an external pull...
  3. Arouse1973

    Wanted: I would like to hire someone to build an electronic toy.

    No probs Adam
  4. Arouse1973

    Bench Power Supply

    yeah I know what you mean. I use both depending on what I am trying to work out. But unfortunately the circuit symbols we use make it even more confusing if you try and use actual current direction. Adam
  5. Arouse1973

    Add current limiter on Bench PSU

    Hi Dave Yeah 1.5A each which is why I said use two. But I don't know if 3 Amps is enough, It should be enough for most general stuff. It's easy to make a adjustable voltage and current power supply with two of them. The datasheet has an example that can be modified. Adam
  6. Arouse1973

    Bench Power Supply

    Yes you got it. But remember common is more positive than the negative rail, so conventional current will be from the common rail (zero volts) to the negative rail this is what confuses people because they see zero volts as nothing. Adam
  7. Arouse1973

    Hello!

    Hi Sam You project looks really good. Welcome to EP. Adam
  8. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    So I got some code working on the 10F320. Much better PIC in my opinion. Sleep current isn't as low as I had hoped and running current is higher than hoped even running at 32 KHz it's 68 uA and sleep is around 12 uA. I need to look at this. The off time is around 2.4 ms (longest time before you...
  9. Arouse1973

    Add current limiter on Bench PSU

    Hi Dave They wanted adjustable current, which is why I said a 3A adjustable PSU. You can have adjustable voltage also if you want. Cheers Adam
  10. Arouse1973

    Add current limiter on Bench PSU

    Have a look at the LT3081 you can make a 3A adjustable PSU using two of them. The current might be a bit low though. Adam
  11. Arouse1973

    Rest in Peace, Kris

    That was lovely Chris. I also cried. I had upmost respect for him and his loss still makes me very sad. Adam
  12. Arouse1973

    Microcontroller controlled by pushbutton for LED flashlight

    PIC10F200 is 2 Volts and the PIC10LF320 is 1.8 Volts up to 16 MHz then 2.5 Volts up to 20 MHz Thanks Adam
  13. Arouse1973

    Wanted: I would like to hire someone to build an electronic toy.

    Lets have a look at some pictures first. Nice clear well lit close ups will be great. Adam
  14. Arouse1973

    Bench Power Supply

    Um ok so it might not work quite so well for your design. But most people can't get there head around circuits which have negative voltages. To switch it to something you can understand as far as where all the current is going you can label the common as +V and the negative as common. Some...
  15. Arouse1973

    Wanted: I would like to hire someone to build an electronic toy.

    Hi Steve Well I will be suprised if you find anyone willing to do this on here for money. But lots that will help you for free, this sounds interesting. I would certainly help for free. Do you have one of the old units you could take some pictures of? Adam
  16. Arouse1973

    Bench Power Supply

    Cover the top part of the circuit with a bit of papper. Lable common as say 12 volts and the negative as common, you should be able to work things out from there. It then gets interesting if your vircuit allows it, when you find positive regulators make better negaive regulators than dedicated...
  17. Arouse1973

    Need Some Help Finding the Right MOSFET

    So for Lipos you got a few choices as you you know. 4.2, 8.4, 11.6 volts. You need to choose one. Adam
  18. Arouse1973

    Need Some Help Finding the Right MOSFET

    Can you use one battery for all? Adam
  19. Arouse1973

    Need Some Help Finding the Right MOSFET

    What voltage Dan?
  20. Arouse1973

    Charging a 450v 6800uF DC capacitor

    Important! What voltage do you want to charge this capacitor to. 450 Volts appears to be the max voltage for this capacitor. What are you trying to do..............hello hello you still there? Adam
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