This moral of this story: any promises of protection and safety should be double-checked for validity. Surge (over-voltage) protection is a rather frequent function, but implementing it robustly is not a very simple task. Recently, I stumbled upon ...
How to deal with the reality that a standard buck controller power stage won’t work for negative-input conversion. Telecommunications equipment, industrial test and other applications require a negative input to negative output voltage ...
Abstract This article discusses the need for precise gate voltage control and accurate gate measurements when using gallium nitride field-effect transistors (GaN FETs). High-side gate measurements taken with advanced isolated probes are compared to ...
Abstract This article describes a circuit that facilitates the measurement of currents from amps to hundreds of amps with a high degree of precision. Introduction There are many applications that require the measurement of current. Many digital ...
High-resolution mixed-signal devices present an interesting challenge as you try to find the right voltage-reference design. Although no universal approach exists for these voltage-reference designs, the circuit in Figure 1 presents an interesting ...
Current sources are useful in many areas of electronics, such as voltage and current division, current transmitters, excitation of thermistors, RTDs, bridges, potentiometers, and circuit biasing. Current sources are either fixed- or ...
Abstract Robust systems often allow multiple power sources. When different power sources are used to power a device, switches need to be implemented to separate the power supplies from each other to avoid damage. This can be accomplished with ...
Even switch-mode power supplies with a fixed switching frequency do not always show a continuing pattern of pulses. In some conditions, pulses are omitted for various reasons. This is important to consider for output ripple voltage and EMI effects. ...
Several Design Ideas (DIs) have employed the subject ICs to implement programmable current sources in an innovative manner ( References 1-3 ). Figure 1 shows the idea. Figure 1. Two independent current sources, one for loads referenced to the more ...
Abstract There is a new product type in the industry, the digital low dropout (LDO) linear regulator. It offers telemetry and adjustability of a linear power supply in a very small footprint. Such solutions are used in ultralow noise applications ...