Thursday, May 30, 2019
Clearance Holes for Metric Fasteners
When designing a PCB board, it is important to determine the necessary clearance for screw holes. The table below shows the general screw sizes and the corresponding hole clearances.
PCB Design : Via Current Carrying Capacity
Maximum via current carrying capacity can be calculated using Saturn PCB Design Toolkit
Commonly used via size and current carrying capacity are as below.
Friday, May 3, 2019
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Schmitt trigger for cleaning up noisy or slow-rising digital signals
A Schmitt trigger is a circuit that converts an analog input signal into a digital output signal with hysteresis. It's characterised b...
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This EMI filter includes a common-mode filter and a differential-mode filter. Generally Differential mode filter filters noise less than 3... -
VGS (th) = 1.3 V (Threshold Voltage) Input = 0V ; VGS > VGS(th) ; FET = ON ; Output = 0V Input = 3.3V ; VGS < VGS(th) ; FET =...