.. of a positive precision voltage reference. This approach typically requires a positive reference, the op amp, and two supply rails to generate the negative output. Another approach to generate the negative supply rail uses a ...
.. good, reliable and easy to use dc power supply is probably the most important thing for every electronics hobbyists. Since a proper electronically ...
.. circuit in Figure 1 derives its power from a USB port and produces 5 and 3.3 V supply rails for portable devices, such as digital cameras, MP3 players, and PDAs. The circuit allows the port to ...
.. modules also involve a significant number of design challenges. For example, their inputs are not isolated from the power supply, so you must add an isolated power supply. This task can both consume critical design time and add to system ...
.. the popularity of applications for portable devices. It can be expensive and relatively complicated to generate a negative supply from a positive input source, especially when the design requires both positive and negative outputs. Figure ...
.. source (horizontal axis), the drain current reaches 10 mA (vertical axis) and increases to 30 mA at 300 mV. The circuit can supply 5 V at currents as large as 2 mA enough to serve many micropowered applications or to provide auxiliary bias ...
.. that piece of test equipment in the lab. You can easily make such a current source from a standard force-sense lab power supply (Figure 1). The circuit requires an additional power supply for the ICs and a separate control voltage. The ...
.. Figure 1, which you can configure to drive a piezoelectric speaker with as much as 12 V p-p and operate from a single 3 V supply. Figure 1. This bridge-tied-load configuration multiplies the amplifiers’ voltage-swing capability. IC ...
.. Mehta, Texas Instruments Electronic Design A transformerless ac-dc supply can provide dc power for light loads using a capacitor's reactions as a current-limiting element. ...