.. The current return side of B consists of the (approximately) known resistance (44 mΩ) of a 41-inch length of 24 AWG copper wire. The resulting 44 mΩ × 0.05 A = ~2 mV drop provides a null reference for the A1a voltage to current ... .. frequent and favorite contributor Nick Cornford gave us a cool and novel acoustic-interface design for a super sub-ohmmeter capable of audibly sniffing out defects in PWBs: “Tuneful track-tracing” ...
.. contributor R. Jayapal recently shared an interesting Design Idea (DI) for power supply control and sequencing in MCU-based applications that combine analog and digital ...
.. U 2A . The comparator’s other input’s voltage causes its output to transition low when the sawtooth rises to 1 volt. U 2A , R 1 , Q 1 , R 8 , C 1 , and U 2B produce a 100 ns one-shot signal at the output of U 2B , which drives ...
.. topic that has recently drawn a lot of interest (!) and no fewer than four separate design articles (!!) here in Design Ideas, is the conversion of 0 to 20 mA current sources into industrial standard ...
.. mA current source (say from a sensor with a separate power source that outputs a 0-20 mA signal current) into a 4-20 mA two-wire transmitter current loop (a standard 2 terminal industrial current source). Below is another novel, ‘silly ... .. recent Design Idea (DI), “Silly simple precision 0/20 mA to 4/20 mA converter,” ( Ref. 1 ) by prolific DI ...
.. waveforms (simulation) of the C2 capacitor. Figure 3. Voltage and current waveforms of C2 (simulation). AL17150 buck design tool The chip man µFacturer (Diodes Incorporated) has introduced an interesting and helpful Microsoft ...
.. were both absolutely correct. Table 6.6 in the TL431 datasheet reveals a maximum reference-voltage error of up to 2 mV per volt of cathode-to-anode voltage swing, consistent with the mediocre 20 V/40 µA = 500k active impedance he ... .. is to say, just how “constant” is their output held against changes in applied voltage? Frequent and expert Design Idea (DI) commentator Ashutosh Sapre was kind enough to measure this parameter for a design of mine and share ...
.. is withdrawn first, and then the 5-V supply. Hence, one push button does both (sequential) ON and OFF functions. This Design Idea (DI) is intended for MCU-based projects. No additional components/circuitry are needed to implement this ...
.. circuit breaker, or you may damage the rectifier, filer chokes, or PCB (printed-circuit-board) traces. The circuit in this Design Idea inserts a current-limiting resistor in the capacitor’s charging path. It senses when the capacitor ...