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Full wave rectifier

Full wave rectifier

A full-wave rectifier is a device that converts alternating current (AC) to direct current (DC) and is more efficient than its half-wave counterpart. It typically includes a center-tapped transformer, two diodes, and a load resistor. The secondary winding of the transformer is divided to provide two equal voltages of opposite polarities, which is the pivotal element of full-wave rectification.

Bridge rectifier

Bridge rectifier

The bridge rectifier is essential in electronics for efficiently converting alternating current (AC) to direct current (DC). Comprised of four diodes configured in a bridge layout, this rectifier effectively processes both the positive and negative halves of the AC waveform, making it superior to half-wave and full-wave center-tapped rectifiers in terms of voltage regulation and output stability.
Operationally, the bridge rectifier allows current flow through two of its diodes during each...

Half wave rectifier

Half wave rectifier

A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.

Parallel Resonance

Parallel Resonance

The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:

Voltage Doubler Circuit

Voltage Doubler Circuit

A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.

Characteristics of Series Resonant Circuit

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:

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Related Experiment Video

Updated: Apr 12, 2026

Investigating the Potential of Singly Curved Thin Piezoelectric Transducers for Energy Harvesting and Structural Health Monitoring

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Published on: November 14, 2025

Multi-service highly sensitive rectifier for enhanced RF energy scavenging.

Negin Shariati¹, Wayne S T Rowe¹, James R Scott¹

¹School of Electrical and Computer Engineering, RMIT University, Melbourne, VIC 3001, Australia.

Scientific Reports

|May 8, 2015

Summary

This study introduces a new multi-resonant rectifier for efficient radio frequency (RF) energy harvesting from multiple sources. The device significantly boosts harvested power, offering a sustainable energy solution for urban environments.

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Area of Science:

Electrical Engineering
Sustainable Energy
Radio Frequency Engineering

Background:

Rising energy costs and environmental concerns necessitate green energy harvesting.
Ambient radio frequency (RF) energy is an underutilized resource for low-power applications.

Purpose of the Study:

To investigate the feasibility of harvesting RF energy simultaneously from multiple sources.
To develop a high-efficiency, multi-resonant rectifier for enhanced RF energy harvesting.

Main Methods:

Design and simulation of a multi-resonant rectifier operating at two frequency bands (478-496 and 852-869 MHz).
Experimental validation of impedance matching and rectified output power across a broad input power range (-40 to -10 dBm).

Main Results:

The rectifier demonstrated excellent impedance matching and agreement between simulated and experimental results.
An effective efficiency of 54.3% and an output DC voltage of 772.8 mV were achieved at -10 dBm input power.
Concurrent harvesting from multiple services increased output DC power 3.14 and 7.24 fold compared to single-frequency rectification.

Conclusions:

The proposed multi-service rectifier is a highly sensitive and promising technique for sustainable low-power energy harvesting in urban settings.
This technology addresses the need for inexpensive, green energy harvesting strategies to conserve the environment and global economy.