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Recent content by boylesg

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    DC Motors and digital electronics

    The fellow is tying to control his actuator with a mechanical relay. This type of device: relay If the device is motor based then I am suggesting to him that he control it with a H-brdige module like this:H-bridge module
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    DC Motors and digital electronics

    Mostly in the context of DC motors in wheeled robots. But one person using some sort of actuator which I am unsure of its nature - solenoid type of thing with on/off functionality or DC motor based like an aileron. This person is using a relay to control the device - OK if it is solenoid like...
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    DC Motors and digital electronics

    I am confused folks. For the last 10 years, or whatever, I have been reading that you must include a free wheel diode across any inductive load, including DC motors, to suppress the inductive kick back voltage spike. But now some one is insisting that you should use a capacitor with a DC...
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    TS 555 CN 50 duty cycle problem

    It was a stuffed 555 timer chip.
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    TS 555 CN 50 duty cycle problem

    Put a 10uF cap from pin 8 to pin1 for starters .... Specifically connect pin 4 to pin 8? Instead of just to the 5V power rail?
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    TS 555 CN 50 duty cycle problem

    It was connecting it to the collector of the BC548. But I disconnected it until I could figure out why the 555 was not oscillating.
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    TS 555 CN 50 duty cycle problem

    Can any body tell me what I have done wrong with this circuit - I just cant see it. I am trying to implement this circuit. Here it is on my bread board. The transistor circuit is not connected atm. R1 = 100k as per above schematic. R2 is a 10k trimpot. C1 = 10nF But I am getting a steady 5V...
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    Reading MCP10XXX datasheet

    Reading the datasheet for MCP10XXX digital potentiometer. Datasheet Refer to page 18. I sort of get the structure of the data you are supposed to transmit to the POT. 3 x 16 bit integers. The first 16 bit integer contains a max of 10 bits corresponding to the resistance you want to set the...
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    XR-8038A function generator IC datasheet question.

    So I take it that capacitor and resistor forms a low pass filter then? Which I would have to refresh my memory on.
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    XR-8038A function generator IC datasheet question.

    Is Vsup = Vcc - Vee? In my case that would be about 16.8V since I am using 2 x 9V NiMH batteries in series with GND in the middle. Which output about 8.4V or so. 1661517676 And another question re this.... Would 100nF and 10k be OK for that cap and resistor on pins 7 and 8?
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    XR-8038A function generator IC datasheet question.

    What is Vsup? There is no explanation of it any where in the datasheet. If Vcc is +9V and Vee is -9V then what voltages should Vin be between?
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    EMI filter for 24VAC

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    EMI filter for 24VAC

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    EMI filter for 24VAC

    Does this sort of diagram show you what you want to see?
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    EMI filter for 24VAC

    Why don't you show me an example of what you want? Because I just don't understand what it is exactly you are looking for.
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