Circuits & Schematics Power

Rajkumar Sharma Electronics-lab.com This project is based on STK984-090A from ON Semiconductor which is a fully-integrated inverter with current rating 20 A and supply voltage 40 V DC (Figure 1). It has been designed to drive the Brushless DC ...

Carl Spearow EDN High-side drivers find common use in driving grounded solenoid coils and other loads. Short-circuit protection for such drivers is essential for avoiding damage from wiring faults and other causes. Polymer fuses are generally too ...

Mikhail Shustov, Tomsk A simple driver circuit of bipolar pulses with separate and independent frequency adjustment and duty cycle is given. Bipolar pulses are mainly used to switch transistors alternately in bridge and half-bridge voltage ...

George Qian, Michael Wu, Analog Devices Design Note 1047 Introduction Isolated flyback converters are used in automotive, industrial, medical and telecom applications where the power supply must be reliable, easy-to-use, high voltage and isolated, ...

Tim Regan Electronic Design Environmental concerns are spurring the development of clean transportation alternatives. Most popular are full electric and hybrid electric motor vehicles, which use stacks of lithium-ion battery cells as the electric ...

Phill Leyva EDN Although relatively expensive, monofilar-wound, bipolar stepper motors provide strong torque for a given physical size. However, each of the motor's two windings requires eight driving transistors connected in groups of four in ...

Scot Lester EDN A step-down SMPS (switched-mode power supply) efficiently converts unregulated power to a regulated output voltage. However, unwanted switching-induced ripple and input transients may appear on the output. Applying noisy power to an ...

John Guy EDN Adding current-limiting circuitry to a power amplifier's or a linear voltage regulator's emitter-follower output stage protects both the output transistor and the downstream circuitry from excessive-current damage. Figure 1 ...

William H. Morong Electronic Design A current-limiting regulator prevents excessive load current, but it may not prevent excessive regulator dissipation. Many integrated regulators do protect themselves from excessive dissipation and many provide a ...

George Qian, Linear Technology Design Note 559 Introduction In traditional isolated high voltage flyback converters, tight regulation is achieved using opto-couplers to transfer regulation information from the secondary-side reference circuitry to ...