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  1. Minder

    pwm opinions

    This link has some usefull tips. http://tahmidmc.blogspot.ca/2013/01/using-high-low-side-driver-ir2110-with.html M.
  2. Minder

    Disadvantage of several capacitors in parallel in a power supply?

    My intention was not to change his mind, just inform him of some options or conditions. M.
  3. Minder

    Incident with a motor pump

    I have been out of the electrical industry in the UK for some decades and do not remember it then, but it looks like it was something formed after the EU. M.
  4. Minder

    Incident with a motor pump

    Ah yes OSHA does not extend to the UK!;) M.
  5. Minder

    Incident with a motor pump

    Probabally one reason is breakers are time delayed devices, in order to avoid nuisance tripping on spikes etc. The short was too brief for the breaker to react, this is why some equipment is fitted locally/internally with fast blow or even semi conductor fuses, which are super fast. M.
  6. Minder

    Disadvantage of several capacitors in parallel in a power supply?

    Also there are many loads where any filter or cap is not required at all when full wave rectification is used , loads such as lights, and many inductive loads such as relays, solenoids, motors etc. M.
  7. Minder

    Changeover Switch Relay?

    Motor spec sheets generally show two ratings, or performance curves, there is continuous torque (current) that starts out at maximum at zero rpm and stays fairly flat up to the max rpm rating, this is the current the motor can handle continuously without damage. The other is the peak torque...
  8. Minder

    A/D conversion - pic18f4550

    Also your ADCON2 reg will need the correct values for the sys. clock you are using if different from the original code. M.
  9. Minder

    Is it my transformer or rectifier?

    I use Toroidal transformers extensively, and there can be considerable inrush, I have often found the effect compounded by poor wiring layout in the building, mixture of lighting and power points etc, without the regard to put on dedicated circuits efficiently etc. M.
  10. Minder

    Part identification

    I think you guessed right, 4 MHz crystal M.
  11. Minder

    need cost and feasibility ideas/suggestions/point me to help/resources

    The principle sounds a little like the project I am working on for a demo Inverted pendulum, (segway principle). Based around the Picmicro app note AN694, there are also different versions on Utube etc. M.
  12. Minder

    Stepper Motor datasheet

    Being Bi-polar rather than uni-polar it has a little more torque but requires dual bridge set up to run. http://www.piclist.com/techref/piclist/jal/DrivingBipolarStepperMotors.htm M.
  13. Minder

    What function do these coil

    Now they appear to be more like ferrite core transformers. M.
  14. Minder

    What function do these coil

    Pictures are a little on the small side! Could be a Teletype (TTY printer) solenoid of some kind? M.
  15. Minder

    DC motor undervoltage (continued)

    If the voltage is reduced for a given load then yes the current can go up. Consider what limits the current to the motor, example, in the case of a 100vdc motor, if 100 v is applied immediately, the current is limited by the armature resistance, which can be a few ohms, the resultant high...
  16. Minder

    What can CANBUS control in cars?

    You would need to modify the firmware, this is in the memory IC that you swap when replacing the computer. M.
  17. Minder

    help in finding best micro controller

    This is why, I have used it for trivial current uses such as relays and a motor that draws that low current. Not 10Ω, BTW. M.
  18. Minder

    relay

    Here is a SFK version you may be able to use. ebay 360697081485 Appears to be a similar case style. M.
  19. Minder

    DC motor undervoltage (continued)

    If the voltage is not reduced then the torque (current) goes up depending on load, and can eventually exceed the Continuous Torque rating of the motor, once you exceed this then the peak torque range is entered and if not limited in time or the load reduced, it usually results in a burnt motor...
  20. Minder

    1955 GE oven element

    Asking for a bit, I would say. Some of the element manf. make a product for customizing an element I believe. http://www.alibaba.com/showroom/custom-made-ovens-heating-element.html M.
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