Articles

Search results: 644 Output: 1-10
  1. For containing large amounts of bulk capacitance, controlling inrush currents poses problems. The simplest approach involves placing an inrush-limiting resistor in series with the capacitor bank, but a resistor wastes power and adds a voltage drop. ...
    24-01-2022
  2. Supply Maxim MAX6037 MAX6143 MAX4236A
    Reducing low-frequency (1/f) noise generated by an IC voltage reference can prove difficult. In theory, adding a lowpass filter to a reference's output reduces noise. In practice, a lowpass RC filter for suppression of noise frequencies below ...
    18-01-2022
  3. The simple circuit shown accomplishes full-wave signal rectification with only one transistor (Fig. 1). This is done by exploiting the “gain reversal” phenomenon exhibited by a saturated bipolar transistor. This circuit will find ...
    11-01-2022
  4. The human ear is very good at detecting noise or missing cycles in a waveform, and since we have two ears, we can monitor two signals at once. I recently repaired an older lab instrument containing a quadrature encoder made with an incandescent ...
    06-01-2022
  1. Measurement Supply Texas Instruments INA185 INA199 INA210 INA225 INA226 INA231
    For most applications, current measurements are made by sensing the voltage drop across a resistor. There are two locations in a circuit that resistors are commonly placed for current measurements. The first location is between the power supply and ...
    21-12-2021
  2. It’s been nearly six years since we unleashed the $5 Raspberry Pi Zero on an unsuspecting world. Of all the products we’ve launched, Zero is still the one I’m proudest of: it most perfectly embodies our mission to give people ...
    15-12-2021
  3. Using a PN-junction diode for temperature measurement usually depends on its 2 mV/K temperature coefficient. Conventionally, you must amplify and digitize this voltage with an ADC before you can use the value in a microcontroller. Less well-known ...
    15-12-2021
  4. Solar-photovoltaic arrays seem to get cheaper and more efficient every day, making them increasingly practical in renewable and/or remote power supply applications. Still, the voltage generated by any given array varies significantly with loading, ...
    14-12-2021
  5. Origin Wireless takes a unique approach to home security. Instead of using cameras or motion sensors, the company employs Wi-Fi in its Home Security System (Fig. 1). The control device uses Wi-Fi to communicate with your network, but it also uses ...
    09-12-2021
  6. One of our products uses a standard 1/10-W surface-mount resistor with a high-side current monitor to detect small load changes at the product’s output. Since this circuit is part of the device’s output, it’s vulnerable to field ...
    29-11-2021