H/V linear regulator with enhanced power supply rejection

Improving Linear Regulator Power Supply Ripple Rejection (PSRR) and Output Noise

The PSRR of a linear regulator is determined by three factors: 1. The PSRR of the bandgap voltage reference, whose output ripple affects the output ripple of the linear regulator up to the roll-off frequency of the bandgap. 2. The open-loop gain of the feedback loop (AV), which is roughly equal to the open-loop gain of the error amplifier, up to the 0dB (unity gain) crossover frequency of the l...

Power Supply Ripple Rejection and Linear Regulators: What's all the noise about?

New Simulation Method of New HV Power Supply for Industrial Microwave Generators with N=2 Magnetrons

This original work treats a new simulation method of a new type of high voltage power supply for microwave generators with N magnetrons (treated case: N=2 magnetrons), used as a source of energy in the industrial applications. This new power supply is composed of a single-phase HV transformer with magnetic leakage flow, supplying two parallel cells, which multiplies the voltage and stabilizes t...

Detailed frequency analysis of power supply rejection in Brokaw bandgap

A detailed frequency analysis of Power Supply Rejection (PSR) in Brokaw bandgap voltage reference is carried out. The knowledge of the frequency behavior in a voltage reference becomes mandatory to the designer especially in RF or digital environment where disturbs coming from supply lines becomes more evident. Precise and simple models, useful for pencil and paper analysis, are developed and a...

Optimizing Linear Power Supply Performance with Line Frequency Toroidal Transformers

We present the conditions in which a toroidal type, line frequency, power transformer can yield reduced stray magnetic field, reduced weight and size, and improved efficiency over an E-I laminate transformer in single phase linear power supplies. These benefits must be considered in relation to the disadvantages of slightly higher cost and greater inrush current. WHY CHOOSE A LINEAR POWER SUPPL...