Crowbar circuits: Revisiting the classic protector
Crowbar circuits have long been the go-to safeguard against overvoltage conditions, prized for their simplicity and reliability. Though often overshadowed by newer protection schemes, the crowbar remains a classic protector worth revisiting. In this quick look, we will refresh the fundamentals, highlight where they still shine, and consider how their enduring design continues to influence […]
Access to this page has been denied.
Access to this page has been denied either because we believe you are using automation tools to browse the website, or something in the request did not pass security restrictions. This may happen as a result of the following: Javascript is disabled or blocked by an extension (ad blockers for example) […]
Digital Evolution: Navigating the Currents of Innovation
Picture immersing yourself in the swift currents of digital evolution, where an intricate network of brilliant ideas unfolds a reality where everyday gadgets redefine our lifestyles. Envision a scene teeming with connected devices, resonating with opportunities and possibilities. This digital transformation comes to life every day through the seamless integration of cutting-edge technologies like the […]
Access to this page has been denied.
Access to this page has been denied either because we believe you are using automation tools to browse the website, or something in the request did not pass security restrictions. This may happen as a result of the following: Javascript is disabled or blocked by an extension (ad blockers for example) […]
Ignoring the regulator’s reference redux
Stephen Woodward’s “Ignoring the regulator’s reference” Design Ideas (DI) (see Figure 1) is an excellent, working example of how to include a circuit in the feedback loop of an op amp to support the stabilization of the circuit’s operating point. This is also previously seen in “Improve the accuracy of programmable LM317 and LM337-based power […]
Access to this page has been denied.
Access to this page has been denied either because we believe you are using automation tools to browse the website, or something in the request did not pass security restrictions. This may happen as a result of the following: Javascript is disabled or blocked by an extension (ad blockers for example) […]
Aiding drone navigation with crystal sensing
Designers are looking to reduce the cost of drone systems for a wide range of applications but still need to provide accurate positioning data. This however is not as easy is it might appear. There are several satellite positioning systems, from the U.S.-backed GPS and European Galileo to NavIC in India and Beidou in China, […]
Access to this page has been denied.
Access to this page has been denied either because we believe you are using automation tools to browse the website, or something in the request did not pass security restrictions. This may happen as a result of the following: Javascript is disabled or blocked by an extension (ad blockers for example) […]
Active two-way current mirror
EDN Design Ideas (DI) published a design of mine in May of 2025 for a passive two-way current mirror topology that, in analogy to optical two-way mirrors, can reflect or transmit. That design comprises just two BJTs and one diode. But while its simplicity is nice, its symmetry might not be. That is to say, […]
Access to this page has been denied.
Access to this page has been denied either because we believe you are using automation tools to browse the website, or something in the request did not pass security restrictions. This may happen as a result of the following: Javascript is disabled or blocked by an extension (ad blockers for example) […]