element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • About Us
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Experts, Learning and Guidance
  • Technologies
  • More
Experts, Learning and Guidance
Ask an Expert Forum Trying to find a high-speed, high-power transistor to use as a switch
  • Blog
  • Forum
  • Documents
  • Leaderboard
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Experts, Learning and Guidance to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Verified Answer
  • Replies 18 replies
  • Subscribers 283 subscribers
  • Views 3755 views
  • Users 0 members are here
  • mosfet
  • components
  • igbt
  • ask_an_expert
  • circuit
  • switch
  • power
  • power_electronics
  • question
Related
See a helpful answer?

Be sure to click 'more' and select 'suggest as answer'!

If you're the thread creator, be sure to click 'more' then 'Verify as Answer'!

Trying to find a high-speed, high-power transistor to use as a switch

ZappaMap
ZappaMap over 1 year ago

I'm designing a high power H-bridge circuit, and I'm trying to find the best transistor for the design. The most important parameters are that it has
- 10MHz switching speed frequency

- Low on-state resistance

- Low off-state capacitance

From there, I would need it to handle high voltages and have a low gate charge. With that in mind, does anyone know of any parameter relationships I should be aware of or what products potentially match that description? Thank you!

EDIT:

Thank you all for your responses! To answer a couple questions I saw:

- I do not have a preference between MOSFETS and BJTs.

- For voltage and amperage, I don't have hard numbers for those. I'm still operating in the tradespace stage of the design right now, so I'm still figuring out what options I have. To give a ballpark range, a component that works with volts on the order of 10V or 100V and amps on the order of 10A wouldn't hurt. I am more concerned with the switching frequency, on-state resistance, and off-state capacitance.

I also learned a little more about switchmode amplifiers, and that is another avenue that I am now looking down (specifically class D and E).

  • Sign in to reply
  • Cancel

Top Replies

  • michaelkellett
    michaelkellett over 1 year ago +5
    I think you'll need to quantify the current and voltage to get good advice. 10MHz is very fast for typical H bridge type applications. Do you have a preference between MOSFETs and BJTs ? As you probably…
  • dougw
    dougw over 1 year ago +3
    You might have a look at Gallium Nitride transistors.
  • scottiebabe
    scottiebabe over 1 year ago +3
    You may also consider pre-engineered GaN half-bridge modules or ultrasound pulse drivers.
Parents
  • michaelkellett
    0 michaelkellett over 1 year ago

    I think you'll need to quantify the current and voltage to get good advice. 10MHz is very fast for typical H bridge type applications.

    Do you have  a preference between MOSFETs and BJTs ?

    As you probably already know its easy to get high current and high voltage at low speeds and possible to get very high speeds at low voltages and currents - getting all three is very hard.

    What is the end game here ?

    MK

    • Cancel
    • Vote Up +5 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Reply
  • michaelkellett
    0 michaelkellett over 1 year ago

    I think you'll need to quantify the current and voltage to get good advice. 10MHz is very fast for typical H bridge type applications.

    Do you have  a preference between MOSFETs and BJTs ?

    As you probably already know its easy to get high current and high voltage at low speeds and possible to get very high speeds at low voltages and currents - getting all three is very hard.

    What is the end game here ?

    MK

    • Cancel
    • Vote Up +5 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube