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  1. B

    BLDC drive help

    Depends on loading, but motors in general tend to draw large hunks of current to initiate rotation. Hence the possibility of your problem.
  2. B

    need to determine the strike voltage of a fluoro tube

    Better to work it out in theory. Do a search on google re-inductance. Any tests would at the very least require a scope. Many dangers associated with what you are proposing.
  3. B

    Rc toy Transmitter compability

    I'd turn it on and try it.... o_O
  4. B

    PS4 Cooling Fans

    If these fans are what I think they are, they will not take too kindly to being connected to a potentiometer. Nor will the pot with nearly 2w flowing. Forget the pot.
  5. B

    Use Capacitive Sensing to detect a train?

    Small magnet on the carriage or whatever and hall switch beside the track...simple. No need for any metal to detect.
  6. B

    BLDC drive help

    Don't see how you can expect a 50W motor to run on a 36W power supply.
  7. B

    BLDC drive help

    OK...but what are you using to power the motor..??
  8. B

    BLDC drive help

    How big is the motor, ie. how much current does it draw and also what are you using to power it.??
  9. B

    Fanrunon - delayed turn-off for bathroom extractor fan

    https://www.clipsal.com/Home-Owner/Products/Timers/Pneumatic-Timers
  10. B

    How to protect Metal Halide Bulb from burning

    What size cabling supplies the lights and how far from the main distribution switchboard are the lights, especially the last fitting.? Still sounds like excessive voltage drop to me. A diagram of your complete layout also ...thanks.
  11. B

    Is this switch safe? Dual 26650

    http://www.ebay.com.au/itm/12V-Black-Metal-Switch-Latching-Push-On-Button-Blue-Led-Illuminated-Diy-Car-/281124863379?pt=AU_Car_Parts_Accessories&hash=item417458fd93 Looked like this one to me.Then again,,,maybe not
  12. B

    Beginner circuit question - 555 timer

    10uF seems large to me. Are you sure it's that size as mostly it would be maybe 0.01uF, put there to eliminate noise much like a cap on the supply rails to other chips. If you do a search you will find there are also recommended maximum resistor/cap combos to use with the 555. Long timing is...
  13. B

    I need to time an AC outlet by seconds, or a break in a DC line

    I see your point......:)
  14. B

    Is this switch safe? Dual 26650

    Switch detail ....
  15. B

    What would 'high-power' be considered? (Constant Current Source)

    Consideration would have to be given to the local traffic laws with regard to install of bright lights. i.e. you cannot drive around with headlights on high beam blinding drivers coming from opposite direction.
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    Drill cordless battery use computer

    Can't see why not. Problem now that they have ripped the guts out of the charger, how do they recharge the battery? There is no fuse in the supply which a standard power unit would almost certainly have. Also, they did not check polarity of the connection which could have blown the guts out of...
  17. B

    AC power generation and transformers

    Any hv cabling I've ever had anything to do with, in Aus at least, there is a strictly controlled method to discharge the capacitance. This is before works commence or during test proceedures. Just shorting out seems a very dangerous approach to me and in this day and age with workplace health...
  18. B

    I need to time an AC outlet by seconds, or a break in a DC line

    Easy with an Arduino pro mini and a couple of relays, especially if the timing turns out to be hours.
  19. B

    MOSFETs that make you scratch your head..

    Photo and a sketch of you circuit would be a big help.
  20. B

    Is this switch safe? Dual 26650

    Unless I am sadly mistaken and my eyes are playing tricks on me, that switch looks like it is a dead short across the battery.
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