Circuits & Schematics Power - 10

Vladimir Rentyuk EDN A TL431 shunt regulator is a perfect choice for many applications. You can use it as a comparator with hysteresis by taking advantage of its inner voltage reference along with few additional components. You can use this ...

Most isolated, offline SMPSs (switched-mode power supplies), including flyback, forward, and resonant, must operate at input voltages of 90 to 260 V rms. Some cases even use line-to-line voltages of 400 V rms 10%, leading to increased ...

Requiring only a handful of inexpensive components, the circuit breaker in Figure 1 responds to both overcurrent- and overvoltage-fault conditions. At the heart of the circuit, D 2 , an adjustable, precision, shunt-voltage regulator, provides a ...

Design Note 521 Introduction A DC/DC converter’s efficiency and component temperature are important considerations in high power applications where high current could overheat the catch diode used in an asynchronous buck or boost topology. ...

Charlie Zhao, Linear Technology Design Note 532 Introduction The wide 4 V to 150 V input range of the LTC3639 stepdown DC/DC converter allows automotive, avionics and distributed power systems to: Cover extensive transient requirements Enable ...

Sajjad Haidar EDN Power supplies with adjustable DC output ranging from 0 V to 30 V or 60 V are on the market. Above 60 V, there are not many. This Design Idea offers a solution. There are many fixed voltage switching mode power supplies (SMPS) ...

As the power consumption of individual cards increases in rack-mounted systems, current consumption necessarily follows suit. A point is reached where the current delivered by the backplane becomes untenable, and the only solution is to increase ...

George Qian, Linear Technology Design Note 525 Introduction Traditionally, isolated power supplies use an opto-coupler in the feedback loop to transfer regulation information across the isolation barrier. Unfortunately, an opto-coupler’s gain ...

Jim Drew, Linear Technology LT Journal Analog circuits often need a split-voltage power supply to achieve a virtual ground at the output of an amplifier. These split-voltage power supplies are generally low power supplies supporting tens of ...

This simple circuit adds short-circuit load protection to a basic driver such as the output of a simple logic gate, while allowing it to control a high-power load operating at a much-higher voltage without fear of destructive short-circuit ...