Christopher Paul has worked in various engineering positions in the communications industry for over 40 years.
Christopher Paul
Christopher Paul
Areas of interest of the author: Supply Microcontrollers Usage Interfaces
Publications on RadioLocman by the author Christopher Paul:
- A class of programmable rheostatsBasic programmable rheostats For many variable resistor (rheostat) applications, one of the device’s terminals is connected to a voltage source VS. Such a source might be a reference DC voltage, an op amp output carrying an AC plus DC signal, or even ground. If freed...Feb 24, 2025
- Non-linear pullup for multi-rate I2C busesI2C is a popular bidirectional serial communications bus having a clock and a data line. Both line’s drivers consist of an open drain ground-referenced N-channel MOSFET with a pullup resistor connected to a supply ranging from 1.8 V to 5 V. The pullup...May 13, 2024
- Simple Technique Drives Multiple LEDs From One Processor PinDriving multiple LEDs with one microprocessor GPIO pin is a well-known technique. Typically, designs perform this task by issuing pulse widths and clocks of differing durations and employing multiple RC networks to distinguish between them. The design described here is much...May 19, 2021
