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  1. B

    TDA1554 Melting

    Mixing grounds may well have frazzled the chip. I'd be laying the circuit out in basic form to begin with. i.e. leave out the usb with bluetooth
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    power station question

    double negative...that means you must know something......you can have that one for free.:) Also Harald is correct..50Hz...always has been. Paralleling generators is a common occurance with the sugar mills coming online with supply authorities..... running up the generators is known as...
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    Thermal Fuse Ghd please help..

    Might be easier to make a visit to your local electrician/ appliance repair shop which should have some fibreglass cable for stove/cooker repairs.
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    Volatile and interrupts

    Look up Arduino volatile in Google, there is a good explanation there.
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    MOSFET PWM Circuit Not Working

    Where is power for the Arduino.?
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    PCB, protection

    1. Jaycar is a well known and respected electronics supplier in Aus. 2. The reference was to show you what was available not necessarily to have you outlay your money there.
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    Converting 3 phase machine to single phase

    Agree....without knowing what is inside the motor terminal box then just a guess. It may be a star connection which some small hp tend to be which would give a final 2 parellel, in series with the remaining winding when connected as shown for single phase. This may give a sort of shaded pole...
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    Low cycle Pulse generator ?

    One can buy 555 delay timers on Ebay for a couple of dollars but you arrangement sounds like it needs to repeat indefinitely during start. The one M refers to is a dual timer in one casing.
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    about led brightness and angle

    365nm LEDs will be the most expensive. If you can get away with a broarder range of LED or ones up around 375-400 it will be a lot cheaper especially if the film on the board is made for the latter range. For the focus, we made a unit here for curing a special type of epoxy in medical use and...
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    Converting 3 phase machine to single phase

    By the look of what is in the first photo it appears to be a milling machine. I doubt there would be any other motor than the main drive, except of course if there is a coolant pump. Other consideration would be the lighting transformer which may have to be changed. I'd tend to get a local...
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    PCB, protection

    https://www.jaycar.com.au/circuit-board-lacquer-spray-can/p/NA1002
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    Li ion Battery charge and use circuit

    24v to 12v regulator is going to put a lot of unnecessary strain on your 12v regulator. Better to come from the battery. Only problem then is when the battery starts to get down in voltage, the regulator may not do it's job quite as well. Perhaps use a low drop out version. LiFePo4 require...
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    Rheostat for Kitchen Appliance

    Pilot lamp (if used) cycles on and off as the contacts close and open, yes. As the descriptions show, the switch does not rely on any feedback from the element. It simply switches on and off at differing rates depending on how the control is set. There is a maximum setting in which the control...
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    Permanent Magnet DC (PMDC) Motor Controller

    There exists mains supply dangers in this arrangement as shown that others should be aware of.
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    Rheostat for Kitchen Appliance

    Maybe a simmerstat...??? https://en.wikipedia.org/wiki/Energy_regulator
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    Multiple mosfet driving

    An additional explanation of the gate capacitance effect here.......... http://electronics.stackexchange.com/questions/135133/do-i-need-a-mosfet-gate-resistor-how-can-i-calculate-it
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    Automotive Gauge Tester

    So you are going to repair gauges and yet you need to ask this question. I think you need to study quite a bit more before attempting any repairs. However, yes, this is what a pot does.
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    AC Electric Motor -HELP-

    Brushless motors are the newer type of dc motor. In fact they are AC but the controller does the work of converting the DC from the battery into 3 phase AC.They do not use brushes, hence ............ As opposed to the regular DC brush type motor which uses brushes to transfer DC current to the...
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    AC Electric Motor -HELP-

    Look at the brushless motors used in model aircraft perhaps. These would require the use of a matched speed controller but they are many and wide spread and some are really relatively in-expensive. They do also require an r/c signal to drive the controller but one can get these on Ebay for a...
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    Automotive Gauge Tester

    1...............For the power supply a multi output plugpack, maybe max 500mA output, then just switch between them for the required voltage. 2.............. Wire wound pot, one shown here I think is around 2W ...500R but you can get others. These are 10 turn so fine adjustment...
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