• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Analog IC Tips

Analog IC Design, Products, Tools Layout

  • Products
    • Amplifiers
    • Clocks & Timing
    • Data Converters
    • EMI/RFI
    • Interface & Isolation
    • MEMS & Sensors
  • Applications
    • Audio
    • Automotive/Transportation
    • Industrial
    • IoT
    • Medical
    • Telecommunications
    • Wireless
  • Learn
    • eBooks / Tech Tips
    • FAQs
    • EE Learning Center
    • EE Training Days
    • Tech Toolboxes
    • Webinars & Digital Events
  • Resources
    • Design Guide Library
    • Digital Issues
    • Engineering Diversity & Inclusion
    • LEAP Awards
    • Podcasts
    • White Papers
    • DesignFast
  • Video
    • EE Videos
    • Teardown Videos
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • Engineering Training Days
  • Advertise
  • Subscribe

Analog Top Talks in October 2019 on EDABoard.com

November 2, 2019 By Aimee Kalnoskas

Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com.

Calculate capacitance value from Smith Chart – How do I convert 50.04-j77.16 on a 50 Ohm Smith Chart to a capacitance value of 10.1pF? I am using GQM2195C2E100JB12. Read more

analog october edaboard.com

Passing both DC and pulses through a toroid – Suppose I have a toroidal core and I wind one turn of wire through it as my primary. My secondary is also one turn through this core. For the next description, assume no core saturation at any point. Now, suppose I pass DC 5v through the primary wire from left to right (this is just a representation to indicate the DC polarity to you). Nothing will be output on the secondary as a transformer will not work at DC. Now suppose I wind a second primary with one turn at the same phase as the first primary. If I feed a 5V rising edge to this second primary in the same direction as that of the DC, will this rising edge present at the secondary? Will this be 5v or 10v at the secondary? Read more

Question about RF power meter – I want to build a new EMF meter but EMF meters are limited they can work around 60 Hz, they can detect a wider range but still not enough for me, so I wanted to change my direction and build a power meter for all range detection. Which diode is good for all bands or which kind of circuit? Read more

Microwave power combiner/divider – I have simulated a two-way power combiner, two inputs port1 and port 2 are excited by two excitations with the same amplitude and combined in outport port3, but the results of s21 and s31 have a positive value (+ 2dB). My question is, can you have a positive value for s21 and s31 in dB? Read more

Ultrasonic transducer driver – I am new in this area in the analog domain. I have a piezo ceramic ultrasonic transducer for a humidifier. Specs:
Voltage: 5-12V
Res. Freq: 1,7 MHz
Res. Impedance: <2″”> I dont know what is this…
Coupling factor> 52%
Static capacitance: 1800pF
I want to make a driver for this transducer as simple as possible. Do you have any idea? Read more

Microstrip to layout in ADS for power amplifier design – Can the microstrip gap (Mgap) used as a replacement for lumped components and transistor when we want to convert the schematic to layout? Attached is the Mgap in the schematic window. Read more

Generation of 4-phase shifted clock signals – How could we generate a phase-shifted signal clock signal (90,180, 270) with just basic components? Read more

Closed-loop stable for negative phase margin? – Consider the following T(s)=1/(1+G(s))
Let G=K(s+1)^2/s^3. Let’s define wc=unity gain frequency & w180= -180 crossing frequency.
If K=10, we see that w180=1 but Gain(w180)=26dB. The GM is negative but if we look at poles of T(s) or Nyquist, it is stable!
This means that you can be stable even with negative GM!
But if K=0.25, we see that wc=0.725 and the phase(wc)=-198deg. The PM is -18deg as we are -18deg pass -180deg. And indeed we see that the closed-loop is unstable (poles of T(s) are RHP & Nyquist unstable). This leads me to wonder, is it possible to be stable if we have a negative PM with a different example? Read more

Photocoupler saturation? –  There is a photocoupler (LTV-817) that I am using that is seeing a power glitch (~1 microsecond) and it seems to take a long time for the photocoupler to recover (~35 microseconds). The blue trace is the power glitch that I am seeing and the yellow trace is the “output” of the photocoupler. I was wondering if anyone had ideas on reducing the response time of the photocoupler (the yellow trace). At the output (yellow trace) what is happening? Read more

You may also like:

  • analog september edaboard.com
    Analog Top Talks in September 2019 on EDABoard.com
  • Couplers and Splitters
    Passive microwave components, Part 2: couplers and splitters
  • isolators and circulators
    Passive microwave components, Part 1: isolators and circulators

  • Impedance matching and the Smith Chart, Part 2

  • Using the Smith Chart for impedance matching, Part 1

Filed Under: Amplifiers, Analog ICs, antennas, Featured, passive components, Products Tagged With: edaboardcom

Primary Sidebar

Featured Contributions

Design a circuit for ultra-low power sensor applications

Active baluns bridge the microwave and digital worlds

Managing design complexity and global collaboration with IP-centric design

PCB design best practices for ECAD/MCAD collaboration

Open RAN networks pass the time

More Featured Contributions

EE TECH TOOLBOX

“ee
Tech Toolbox: 5G Technology
This Tech Toolbox covers the basics of 5G technology plus a story about how engineers designed and built a prototype DSL router mostly from old cellphone parts. Download this first 5G/wired/wireless communications Tech Toolbox to learn more!

EE LEARNING CENTER

EE Learning Center
“analog
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.

EE ENGINEERING TRAINING DAYS

engineering

RSS Current EDABoard.com discussions

  • Diode recovery test Irrm timing.
  • How to make string LEDs?
  • The Analog Gods Hate Me
  • Battery Deep Discharge – IC Workarounds?
  • Safe Current and Power Density Limits in PCB Copper(in A/m² and W/m³) simulation

RSS Current Electro-Tech-Online.com Discussions

  • Raise your hand if your car had one of these:
  • Tektronix 2235 channel 1 trace unstable
  • How to make string LEDs?
  • Wideband matching an electrically short bowtie antenna; 50 ohm, 434 MHz
  • The Analog Gods Hate Me
“bills

Design Fast

Component Selection Made Simple.

Try it Today
design fast globle

Footer

Analog IC Tips

EE WORLD ONLINE NETWORK

  • 5G Technology World
  • EE World Online
  • Engineers Garage
  • Battery Power Tips
  • Connector Tips
  • DesignFast
  • EDA Board Forums
  • Electro Tech Online Forums
  • EV Engineering
  • Microcontroller Tips
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips

ANALOG IC TIPS

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy