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Your circuit (for 120 volt operation) must withstand up to 600 volts without damage. Since that was an international design standard even before PCs existed.
You have assumed normal mode transients. Numerous and completely different parameters exist for each anomaly (ie esd, surge...
Which means we are discussing a transient that exists before it is even on wires that provide electricity to a building. Obviously IEC1000-4-5 is only about an item. It is only a tiny part of a bigger picture.
To protect any appliance from a surge that can easily blow through that 4000 volt...
Instrument ground, digital ground, analog ground, chassis ground, and wall receptacle safety ground can be interconnected. And all are electrically different. Otherwise you could connect a lightning rod to any to protect the building.
Earth ground is completely and electrically different from...
Re: HDMI surge protection
Earthing the connection would make that connector a target. Surges hunt for earch ground. A surge incoming on AC main will hunt for and find earth ground outgoing via an HDMI port. Never address surges at the appliance. Always address a surge BEFORE it can enter a...
Someone already recommended that type solution. Apparently you did not understand what a boost switching power supply is. So best to look for something easier to understand: DC to DC converter power supplies.
This is maybe 1000 possible choices...
It should be obvious what it is for many reasons.
1) its leads obviously are too large for surge protectors or capactors.
2) Tracing PC board copper traces would have made it obvious what it was or what its function is. Those thicker leads suggest #3 probably identified it.
3) TDK is a...
No. Two voltage sources are not described. Described is a voltage source (that is problematic) and a current source (that does the testing). Applying 380 volts does not accomplish anything.
Previous post describes what is important. A current pulse (not a voltage pulse) that is milliamps.
Voltage is not the independent value. In surge protection, the independent value is current. Voltage (a dependent value) should rise as much as possible with current limited to single digit milliamps. Obviously width of that single test pulse is important since the setup could output somthing...
Your concern is something called load dump. Both SAE and ISO define this threat on 12 volts with numbers. Automotive transients up to 270 volts and energy up to 50 joules. SGS Thompson defines a smaller concern: Peak voltage 80 to 100 volts.
Semiconductor companies make other (equivalent)...
Do you mean overvoltage and overcurrent? Or a regulated voltage and current source?
For example, all properly designed voltage power supplies (fixed or programmable) feature overcurrent protection. But power supplies that feature programmable voltage regulation and current regulation are...
They are correct. But then a number was not provided. Power consumption would be equivalent to that drawn by an LCD watch from its battery.
Always important. An answer must be quantitative. If necessary, even a ballpark number. Subjective reasoning can claim anything. Only quantitative...
If he was honest, then bud posted the power strip spec numbers that claim protection. He cannot post what does not exist. So again, he spins subjective accusations. Distorts 100 years of well proven science. Protection is always about energy dissipated harmlessly in earth. As in always...
Where are specification numbers that claim his magic box does something "useful"? A sales promoter will make numerous subjective claims to avoid a reality defined by numbers. The 'so called' easiest solution is also “useless” if a 'whole house' protector does not exist. The easiest solution...
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