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  1. Alec_t

    Drive an heating element for an homemade oven.

    Too slow to operate. The response time of a thermostat is much greater than that of a circuit-breaker. As previously asked, what is the circuit-breaker rating (Amps)? You need to power the element from a circuit which can handle 6A without stress, e.g. a 10A circuit.
  2. Alec_t

    Drive an heating element for an homemade oven.

    Presumably a 240V rated element as the link is uk-based. So current would be ~6A. If the breaker is 5A rated that would explain it tripping.
  3. Alec_t

    Drive an heating element for an homemade oven.

    .... and what is the rating of the element?
  4. Alec_t

    Drive an heating element for an homemade oven.

    If the element is not faulty then your circuit-breaker is doing its job in preventing your supply circuit from being over-loaded. I suggest you get a lower wattage element. Controllers which reduce the heating capacity of an element can fail, or be set incorrectly. Either situation could be...
  5. Alec_t

    Wagner Steam Cleaner Handle Overheating

    Does the steamer have a pressure-release valve? A blocked valve could result in the steam becoming super-heated.
  6. Alec_t

    Drive an heating element for an homemade oven.

    Welcome to EP! Can you explain what you mean by 'pilot'? All you need to keep the element always on is a suitably rated switch.
  7. Alec_t

    Wagner Steam Cleaner Handle Overheating

    Does the steamer have a thermal cut-out? It should if it's for use in the EU.
  8. Alec_t

    Wagner Steam Cleaner Handle Overheating

    I don't see how you can prevent the handle getting hot, since you are passing steam through it. However, a layer of heat insulating material wrapped around the handle will reduce the heat reaching your hand.
  9. Alec_t

    Strange BLDC wave form and failed drivers

    This App Note is well worth a read regarding failed drivers. See Section 2.3 onwards.
  10. Alec_t

    Strange BLDC wave form and failed drivers

    At which point in the circuit? A schematic would be helpful.
  11. Alec_t

    Can't send gmail

    Do you get any error messages when you try sending? Have you checked your outgong SMTP server settings to make sure you're using the correct server?
  12. Alec_t

    A Question About PWM Controllers

    How much is 'very little current'? What is the pump rating? Electric motors have a start-up current which is several times their normal running current, so that may be a possible cause of controller failure.
  13. Alec_t

    Timer 555 voltage

    It's not good practice to run components at their maximum rated voltage if you want them to have a long and happy life, so why use 15V?
  14. Alec_t

    Powering a linear actuator with a battery

    If you're talking about the 12V relay board in the post #8 link, then it looks like battery positive goes to Vin and battery negative goes to Gnd.
  15. Alec_t

    POWER MOSFET gate resistor

    Allowing 60V on to the FET gate will fry the FET. Most FETs have a maximum allowable Vgs of only ±20V. A high value gate resistor would prevent the FET turning on/off quickly, so could result in it over-heating. If the FET has to be switched on/off quickly then a dedicated gate-driver IC would...
  16. Alec_t

    POWER MOSFET gate resistor

    Welcome to EP! R7 is not a timing resistor. It is there (a) to limit the MOSFET gate charge/discharge current to a range that the gate drive arrangement can handle and (b) to damp any high frequency spurious oscillations due to stray inductance. Its value is usually in the 10Ω to 100Ω range and...
  17. Alec_t

    Frustrated

    Do you have the bipolar version of the 555 or the CMOS version? You don't have a current-limiting resistor in series with the LED so you are lucky it has survived so far, but it might pull the output voltage of the 555 down too much if it's the CMOS version. What is your supply voltage?
  18. Alec_t

    Powering a linear actuator with a battery

    All batteries produce DC. The link in post #8 lists several different modules. Make sure you get the 12V module.
  19. Alec_t

    Powering a linear actuator with a battery

    There is no such thing as a 3Ah motor. You are confusing Amps with Amp-Hrs. The 7Ah battery will be fine to power the actuator for much longer than the 2.3Ah one. The actuator will draw just the current it needs, namely 3A.
  20. Alec_t

    Solenoid Motor Strength

    Unless you're aiming for a steam-punk look I think a rotary motor would be far more efficient than a solenoid one. I guess your propeller is pretty big if it has a 1" diam shaft, so it will need some serious power if it is to be effective. I suggest you do some research into the power required...
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