Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Source Transformation for AC Circuits

Source Transformation for AC Circuits

The process of source transformation in the frequency domain entails the conversion of a voltage source, positioned in series with an impedance, into a current source that is parallel to an impedance, or the other way around. It is essential to maintain the following relationships while transitioning from one source type to another.

MOSFET Amplifiers

MOSFET Amplifiers

The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...

Small-Signal Analysis of MOSFET Amplifiers

Small-Signal Analysis of MOSFET Amplifiers

In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...

Design Example: Capacitance Multiplier Circuit

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

Inverting and Non-inverting OpAmps

Inverting and Non-inverting OpAmps

In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.

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.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Single switch high voltage gain quadratic converter with continuous input current and low semiconductors voltage stress.

Scientific reports·2026

Same author

Prevalence of HER-2 and Hormone Receptors and P53 Mutations in the Pathologic Specimens of Breast Cancer Patients.

International journal of breast cancer·2014

See all related articles

Search research articles

Related Experiment Video

Updated: May 2, 2026

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

Published on: October 5, 2019

Efficient impedance source-based high voltage gain converter with smooth input current.

Maryam Hajilou¹, Hosein Farzanehfard²

¹Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.

Scientific Reports

|April 30, 2026

Summary

A novel soft-switched high step-up converter using coupled inductors and switched capacitors offers high voltage gain with reduced switch stress. This innovative design enhances efficiency and reliability for power electronics applications.

Keywords:

High voltage gain Low voltage stress Quasi Z-source converter ZVS operation

More Related Videos

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Published on: August 15, 2014

Related Experiment Videos

Last Updated: May 2, 2026

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

A Simple Approach to Perform TEER Measurements Using a Self-Made Volt-Amperemeter with Programmable Output Frequency

Published on: October 5, 2019

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

Published on: June 3, 2015

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Published on: August 15, 2014

Area of Science:

Electrical Engineering
Power Electronics
Renewable Energy Systems

Background:

Traditional quasi-Z-source converters face challenges with high conduction losses and limited voltage gain.
Existing solutions often involve complex structures or compromise efficiency and component stress.
The need for efficient, high step-up DC-DC converters is critical for renewable energy integration.

Purpose of the Study:

To propose a new soft-switched high step-up quasi-Z-source converter with improved performance.
To achieve high voltage gain and low switch voltage stress using coupled inductors and switched capacitors.
To address the limitations of conventional quasi-Z-source converters, particularly conduction losses and diode reverse recovery issues.

Main Methods:

Integration of coupled inductors and switched capacitor techniques into the basic quasi-Z-source converter topology.
Implementation of soft-switching (zero-voltage switching) for all semiconductor switches.
Analysis of converter operation, voltage gain, efficiency, and component stress.
Experimental validation using a 200W laboratory prototype.

Main Results:

Achieved high voltage gain with a low coupled inductor turns ratio.
Demonstrated soft switching for all switches, eliminating capacitive turn-on losses.
Significantly reduced conduction losses compared to the basic quasi-Z-source structure.
Eliminated the diode reverse recovery problem and duty cycle limitations.
Successfully absorbed and recycled leakage inductance energy.

Conclusions:

The proposed converter simultaneously offers high voltage gain, low switch stress, soft switching, and reduced losses.
It overcomes key limitations of existing quasi-Z-source converters, presenting a superior alternative.
The validated prototype confirms the practical feasibility and advantages of the novel topology for power conversion.