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Half wave rectifier

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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.

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Full wave rectifier

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Related Experiment Video

Updated: Jul 6, 2026

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

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Published on: February 5, 2020

Single mode heat rectifier: controlling energy flow between electronic conductors.

¹Chemical Physics Theory Group, Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario, Canada M5S 3H6.

Physical Review Letters

|March 21, 2008

Summary

Heat transfer rectification occurs due to nonlinear electron gas dispersion. Linear dispersion results in symmetric thermal current, while deviations enable prominent rectification, impacting molecular junctions.

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Published on: July 5, 2024

Area of Science:

Condensed matter physics
Quantum thermodynamics
Nanoscale heat transfer

Background:

Heat transfer between conductors is fundamental.
Understanding rectification mechanisms is crucial for thermal management.
Electron gas dispersion relations influence thermal transport properties.

Purpose of the Study:

Investigate the role of electron gas nonlinearity in thermal rectification.
Analyze the conditions for the onset and prominence of rectification.
Explore the implications for nanoscale heat transfer in molecular junctions.

Main Methods:

Utilizing a simple model of heat transfer mediated by a monomodal harmonic oscillator.
Analyzing the system's behavior based on the linearity or nonlinearity of the electron gas dispersion relation.
Comparing results with Landauer-type expressions for thermal current.

Main Results:

Rectification onset is directly linked to nonlinear electron gas dispersion.
Strictly linear dispersion leads to a symmetric thermal current (Landauer-type expression).
Prominent rectification emerges with deviations from linear dispersion, particularly when fermionic models cannot be bosonized.

Conclusions:

Nonlinearity in electron gas dispersion is the key factor for thermal rectification.
The findings are relevant for radiative heat transfer and vibrational energy flow in insulating molecular junctions.
This work provides insights into controlling heat flow at the nanoscale.