Articles - 20

Aaron Hanson allaboutcircuits.com Part 1 Part 2 Learn how to use a Microchip Bluetooth module to prototype digital input and digital control peripherals. In this article, the three in a four-part series on Microchip's RN487x Bluetooth modules, ...

Richtek Technology With huge choice of LED lamps available nowadays, it is not always easy to select the best suitable lamp for your living room or workspace. The light quality of LED lamps can vary greatly depending on the lamp design topology and ...

Matthew Carroll Pennsylvania State University A team of scientists has developed a new mechanism to harvest stray magnetic fields all around us and convert the energy into useful, usable electricity. (Image credit: Kai Wang.) The electricity that ...

Information for configuring your modules and using them before each of the project descriptions that will follow in other articles. Part 1 Using a Console Connection to Configure the RN487x To configure the RN487x, first supply power to the module ...

Aaron Hanson allaboutcircuits.com Learn about the RN487x family of Bluetooth modules and how to configure them for your low-power peripheral projects. If you are developing a small, low-power peripheral, the odds are good that you are considering ...

Jeff Sorensen EDN 2019 marks the 100th anniversary of the Greinacher voltage multiplier, invented by Swiss physicist Heinrich Greinacher in 1919. In 1932, Douglas Cockcroft and Ernest Walton used this basic circuit to power a particle accelerator, ...

Increasing the output voltage of IC operational amplifiers usually involves adding high-voltage external transistors. The resulting circuit then requires correction to retain its operating characteristics. This correction is difficult, especially ...

Justin Larson,Frank Kolanko EDN Buck regulators operating in CCM (continuous-conduction mode) have straightforward operation, allowing for easy calculation of output voltage and system design. However, lightly loaded buck regulators operate in DCM ...

Switching regulators use a duty cycle to realize voltage or current feedback control. The duty cycle is the ratio of the turn-on time (T ON ) to the complete cycle length, the turn-off time (T OFF ) plus on time, and defines a simple relationship ...

Electromagnetic compatibility and oftentimes PCB trace routing are key participants in the switching-regulator hot-loop phenomenon. The term hot loop is relevant whenever switching regulators and their electromagnetic compatibility (EMC) are ...