Alright, I admit that the title is a bit over the top. So, what do I mean by it? I mean that: The application of PWM control to a regulator does not significantly degrade the inherent DC accuracy of its output voltage...
Gold-plated PWM-control of linear and switching regulators
Circuit improves on bias for GaAs FETs
It's important to properly sequence the bias applied to an RF/microwave GaAs FET or a MMIC amplifier. These devices are extremely sensitive to drain and gate voltage levels...
Circuit offers series protection against power-line transients
Voltage transients on low-voltage power lines can sometimes attain amplitudes many times the nominal voltage level. That behavior often calls for protection against the application of improper power levels...
Microchip halves the power required to measure how much power portable devices consume
Battery-operated devices and energy-restricted applications must track and monitor power consumption without wasting power in the process. To solve this challenge, Microchip Technology announces two digital power monitors...
Landline phones: going, going… but not at all gone
Looking around at the ubiquitous proliferation of wireless smartphones, it’s easy to assume that the classic wired “landline” phone on a copper loop is a relic of ancient days...
Active current mirror
Current mirrors are a commonly useful circuit function, and sometimes high precision is essential. The challenge of getting current mirrors to be precise has created a long list of tricks and techniques...
A simpler circuit for characterizing JFETs
The circuit presented by Cor van Rij for characterizing JFETs is a clever solution. Noteworthy is the use of a five-pin test socket wired to accommodate all of the possible JFET pinout arrangements...
Accuracy loss from PWM sub-Vsense regulator programming
I’ve recently published Design Ideas showing circuits for linear PWM programming of standard bucking-type regulators in applications requiring an output span that can swing below the regulator’s sense voltage...
Next-generation of optical Ethernet PHY transceivers deliver precision time protocol and MACsec encryption for long-reach networking
The rise of smart factories, remote monitoring and connected infrastructure are increasing the demand for advanced networking systems that can operate over long distances and in challenging environments...
Circuit makes square deal
A classic nonlinear analog function is the squaring circuit. It’s useful in power sensing, frequency multiplication, RMS computation, and many other odd jobs around the lab bench...