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Recent content by travulous

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    Altium designer 6 ( 3d parts alignment with PCB footprint? )

    When viewing the footprint in 2D, make sure the layer the 3D body is on is visible. If the part/footprint are symmetric, you should be able to do the math to get the part lined up. If it's off when viewing in 3D, you can select the body and do an Edit > Move > Move Selection by X/Y and...
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    Scope issue or GND bounce or other?

    I'm experiencing an unusual phenomenon when testing a hardware design. The design has 5 high current Low-side PMOS drive circuits which are designed to actuate 1 ohm solenoids with a short (<100ms) pulse. Each drive circuit is individually controlled via an MCU port. The supply voltage to each...
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    What is SIDAC and explain its working.. ??

    Try this link: **broken link removed** The SIDAC is a high voltage switch typically used in lamp circuits.
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    Electronic equipment and general questions [Basic]

    I've used this station for the last 5 years and it does everything we need. Excellent temp control. Hot air is a nice feature. Also has extraction tool. **broken link removed**
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    gap between conductors

    Re: gap between conductos What is the dielectric constant of the material between them?
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    time delay of comparator

    Increase current sources and decrease Cgs
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    [SOLVED] What is the color code for a 4.7 ohm resistor?

    Re: small resistor value 4.7 ohm color code: Yellow - Violet - Gold - X x - tolerance color http://www.bpesolutions.com/atechnical/ResistorQV.pdf
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    Simulator tool required

    Vimal, I also use LTSpice for most of my simulations. The disadvantage is that they only have models for Linear Tech integrated circuits. However, the question that you had was to calculate the current in your circuit and LTSpice is more than powerful enough to do that. The switcher will have...
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    Altium Designer - Iindicating that a component is placed at some height from the PCB

    Creating a 3D body is the best way to go. Read section 16.2 of this document: https://www.altium.com/files/training/Module%2016%20-%20PCB%20Library%20Editor.pdf
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    [SOLVED] Why do we use zener diode as Voltage reference in Comparartors

    What are you using as a rail voltage to the op amp?
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    current sensing problem

    How are you measuring the current? Current sense resistor? Hall-effect?
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    Gaussian noise in matlab

    y = awgn(x,snr) adds white Gaussian noise to the vector signal x. The scalar snr specifies the signal-to-noise ratio in decibels. If x is complex, then awgn adds complex noise. This syntax assumes that the power of x is 0 dBW. y = awgn(x,snr,sigpower) is the same as the syntax above, except...
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    [Moved]facing problem in choosing low cost led display

    Re: facing problem in choosing low cost led display There are essentially two options: 1. Common Cathode (which a logic 0 turns on) 2. Common Anode (which a logic 1 turns on) Common Cathode is usually the best choice for microcontroller designs which you have to turn on multiple LEDs...
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    Hoping to get a head start this time.

    I have this product and it works great and doesn't take up much room on the bench. It's also incredibly easy to get screen captures, timing diagrams, and other useful plots to cut and paste in to a report. USB Logic Analyzer - SparkFun Electronics - travis

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