Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

The Delta-to-Delta Circuit01:17

The Delta-to-Delta Circuit

956
In a delta-delta configuration, the source and the load are connected in a delta manner, forming a closed loop that divides the network into three distinct phases. This configuration makes the phase voltages identical to line voltages. Assuming the sources are in positive sequence, the phase voltages can be expressed directly without having a neutral wire.
956
Switching of BJT01:22

Switching of BJT

660
Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
660
The Y-to-Delta Circuit01:19

The Y-to-Delta Circuit

588
A balanced wye-to-delta circuit comprises balanced Y-connected voltage sources and delta-connected loads with no neutral line connection.
The initial step in analyzing a wye-to-delta circuit is to assume a positive phase sequence. These phase voltages are then utilized to calculate the line voltages that occur directly across the delta-connected load impedances. Van, Vbn, and Vcn are the phase voltages in wye, and Vab, Vbc, and Vca are the line voltages for a delta circuit. The relation between...
588
Differential Relays01:20

Differential Relays

535
Differential relays are used to protect generators, buses, and transformers by comparing electrical quantities at different points. When a fault occurs, the difference in current between the two points triggers the relay to operate, opening the circuit breaker. Under normal conditions, the current entering (i1) and leaving (i2) a generator are equal. When a fault occurs, however, these currents become unequal, and the difference current flows in the relay operating coil, causing the relay to...
535
The Delta-to-Y Circuit01:16

The Delta-to-Y Circuit

715
In the delta-wye circuit, the source is delta-connected, while the load is in a wye configuration. This means that the phase voltage of the delta-connected source is equal to the line voltage of the wye-connected load. The connection between two-line currents originates from the delta-connected source. The phase difference in the balanced system allows for calculating one line current given the other, utilizing the positive sequence of phases. In the delta-wye system, the phase currents in the...
715
Directional Relays01:25

Directional Relays

475
Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
475

You might also read

Related Articles

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

Sort by
Same author

Efficacy of exercise interventions in multiple myeloma: a systematic review and meta-analysis.

Journal of cancer survivorship : research and practice·2026
Same author

Loneliness in patients with cancer: Associations with perceived social support, functional Independence, and psychological distress in a cross-sectional study.

Journal of psychosomatic research·2026
Same author

Verbal memory performance in alcohol-cocaine versus alcohol use disorder: selective impairment in delayed free recall.

Alcohol and alcoholism (Oxford, Oxfordshire)·2026
Same author

The Clinical Staging Model in Psychosis: a Cross-Disciplinary Critical Appraisal Informed by Oncology.

Schizophrenia bulletin·2026
Same author

Premorbid adjustment problems, negative symptoms, and cognitive impairment in a large international sample at clinical high risk for psychosis: Findings from the Accelerating Medicines Partnership-Schizophrenia.

Schizophrenia bulletin·2026
Same author

Clinical importance of the 5-Step Precision Medicine (5SPM) method in shared decision-making to choose the antipsychotic treatment for a patient with first-episode psychosis: a case report.

BMC psychiatry·2026

Related Experiment Video

Updated: Dec 7, 2025

The Lambda Select cII Mutation Detection System
07:08

The Lambda Select cII Mutation Detection System

Published on: April 26, 2018

8.2K

2 λ switch.

Akhilesh S P Khope, Songtao Liu, Zeyu Zhang

    Optics Letters
    |October 1, 2020
    PubMed
    Summary
    This summary is machine-generated.

    We developed a new silicon photonics switch for flexible wavelength routing. This advanced optical switch significantly reduces signal loss and supports high-speed data transmission.

    More Related Videos

    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
    05:11

    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition

    Published on: June 27, 2025

    479
    Following Cell-fate in E. coli After Infection by Phage Lambda
    06:10

    Following Cell-fate in E. coli After Infection by Phage Lambda

    Published on: October 14, 2011

    24.0K

    Related Experiment Videos

    Last Updated: Dec 7, 2025

    The Lambda Select cII Mutation Detection System
    07:08

    The Lambda Select cII Mutation Detection System

    Published on: April 26, 2018

    8.2K
    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition
    05:11

    High-precision Electromagnetic Flowmeter with Empty Pipe Detection via Complex Programmable Logic Device-based Waveform Recognition

    Published on: June 27, 2025

    479
    Following Cell-fate in E. coli After Infection by Phage Lambda
    06:10

    Following Cell-fate in E. coli After Infection by Phage Lambda

    Published on: October 14, 2011

    24.0K

    Area of Science:

    • Photonics and Optical Engineering
    • Integrated Optics
    • Silicon Photonics

    Background:

    • Wavelength selective switches are crucial for optical communication networks.
    • Previous switch generations suffered from high path loss and limited flexibility.
    • Advancements in silicon photonics enable novel optical switching solutions.

    Purpose of the Study:

    • To demonstrate an elastic multi-wavelength selective switch with improved performance.
    • To reduce path loss and enhance data transmission capabilities.
    • To leverage silicon photonics for advanced optical switching.

    Main Methods:

    • Fabrication of the switch using a silicon photonics foundry.
    • Characterization of ring resonators for wavelength tuning.
    • Testing high-speed data transmission using pulse-amplitude-modulation-4 (PAM-4).

    Main Results:

    • Demonstrated a 17 nm tuning range for ring resonators.
    • Achieved a mean path loss of 2.43 dB, a 70% reduction from previous designs.
    • Successfully transmitted data at 111 Gbps using PAM-4 through various switch paths.

    Conclusions:

    • The developed silicon photonics switch offers significant improvements in performance and flexibility.
    • The reduced path loss and high-speed capability make it suitable for next-generation optical networks.
    • This technology advances the field of elastic optical switching.