Network Sites:
Latest
Forums
Education
Tools
Videos
Datasheets
Giveaways
Latest
News
Technical Articles
Latest
Projects
Education
Log In
Join
Log in
Join EEPower
Or sign in with
Facebook
Google
LinkedIn
GitHub
0:00
/
0:00
Podcast
Latest
Subscribe
Google
Spotify
Apple
iHeartRadio
Stitcher
Pandora
Tune In
Menu
Explore
Content
Capacitor Guide
Forums
Industry Articles
Industry White Papers
Tech Insights
News
New Industry Products
Resistor Guide
Technical Articles
Textbook
Tools
Products
Batteries
Charging
Components & Materials
Design & Manufacturing
Electric Vehicles
Energy Storage
Generation
Microgrid
Power Supplies
Reliability & Security
Semiconductors & ICs
Smart Grid
Test & Measurement
Transmission & Distribution
View all
Applications
Distributed Energy
Electrification
Government
Industrial
Industry News
Infrastructure
Medical
Military & Aerospace
Non-renewable Energy
Recycling
Reg & Standards
Renewable Energy
Transportation
Utilities
View all
Articles
Latest
News
New Industry Products
Technical Articles
Tech Insights
Industry Articles
Industry White Papers
Forums
Latest
General Power Chat
Batteries & Power Supply Design
Power Conversion
Power Management
Tools
Education
Textbook
Resistor Guide
Capacitor Guide
Datasheets
Podcast
Connect with us
Network Sites:
Home
Members
EngineerInAshfield
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
Recent content by EngineerInAshfield
Search Forums
New Posts
E
2kW Step-down PWM converter for high voltage dc-BUS
First, an observation, a 300uH inductor at 50kHz will not give you continuous mode operation (the ripple current is greater than the load current). This will complicate everything: your output caps will need to be huge and the current stress and heating of the inductor will also be significantly...
EngineerInAshfield
Post #3
Aug 27, 2023
Forum:
Power Conversion
E
AC Voltage Meter - Non Transformer Solution
You are welcome. Let us know how you get on. I didn't tell you: the standard to use if you look it up, will be one of the 950 variants (EN60950, IEC950 etc etc) and that standard will tell you the isolation barrier you need must have as a minimum a creepage distance of 6.4mm and a clearance of...
EngineerInAshfield
Post #7
Jul 23, 2021
Forum:
Power Conversion
E
Doubts about electrolytic capacitors
Your friend just wants an excuse to play games and watch TV all the time. Do a quick survey asking people if they make a point of using all of their electronic devices at least once a month to keep them working and if they find the devices fail after long periods of disuse otherwise. That may...
EngineerInAshfield
Post #6
Jun 28, 2021
Forum:
General Power Chat
E
Doubts about electrolytic capacitors
So I did not guess the reason for your question correctly. The reason I was trying to guess is simply because your question cannot be answered without a lot more information being provided. Details such as the manufacturer, part number and part specifications, stresses when in use, total hours...
EngineerInAshfield
Post #4
Jun 28, 2021
Forum:
General Power Chat
E
Doubts about electrolytic capacitors
In days of olde ;) there was an issue occasionally with electrolytics which were said to have "dried out" but that was valve era electronics and maybe a decade or two into the solid state era. Caps from the 90s as far as I am aware should be fine if they were reasonable quality in the first...
EngineerInAshfield
Post #2
Jun 28, 2021
Forum:
General Power Chat
E
AC Voltage Meter - Non Transformer Solution
If you were to use a small transformer but not an instrumentation type the waveform can be so distorted by the transformer it is useless for anything more than a rough guess or the typical, dodgy and usually flawed assumption that peak and RMS voltages have a fixed and incontrovertible...
EngineerInAshfield
Post #5
Jun 28, 2021
Forum:
Power Conversion
E
AC Voltage Meter - Non Transformer Solution
Most electrical safety standards I am familiar with allow a direct connection to mains via a couple of series connected resistors in each and every leg of the circuit separating the mains from your non mains circuit. The resistors should be rated for the peak voltage, be fusible types and of...
EngineerInAshfield
Post #4
Jun 28, 2021
Forum:
Power Conversion
Top