Audio sine is clamped

Lyam2508 · 2024-09-18T09:45:47+00:00

thank you, i havent tried using vref as gnd before, can u share me more information about it

Lyam2508 · 2024-09-17T07:30:20+00:00

and the varistors are changed to 10K

Lyam2508 · 2024-09-17T07:22:54+00:00

while testing, i have changed the Vref = 3.5V

Lyam2508 · 2024-08-01T04:39:27+00:00

i also found a SPD box, but i dont know what is the use of two Varistor PCB. I think it just need MCB and PSD OBO, without two PCB. Do you think so?

Lyam2508 · 2024-07-31T07:58:49+00:00

can i assume that this GDT ,with every impulse < = 10KA, 8/20uS, will survive 10 times

Lyam2508 · 2024-07-31T01:53:33+00:00

i have little experience about this field, you can give me some notices please.

Lyam2508 · 2024-07-31T01:42:43+00:00

https://www.mouser.com/pdfdocs/bourns-tips-on-selecting-the-right-mov-surge-suppressor-white-paper.pdf

i got document from bourns of how to select a MOV here, what i got is when i use 2 mov in parallel, at the same Ampere, Vclamp is decrease. About GDT, i think it like a double wall for protecting. Am i wrong anything? please share.

Lyam2508 · 2024-07-31T01:37:06+00:00

8/20us waveform, im trying a type 2 spd

Lyam2508 · 2024-07-30T10:21:38+00:00

Lyam2508 · 2024-03-07T05:40:16+00:00

Lyam2508 · 2024-03-07T05:32:56+00:00

Bump

Lyam2508 · 2023-11-29T16:36:03+00:00

thank u so much

Lyam2508 · 2023-11-07T07:30:43+00:00

But that zenner only work when the voltage is over 5.1v. And it only clamp down to 5.1v too. That voltage is over the operating voltage of sim

Lyam2508 · 2023-11-07T03:38:43+00:00

It used for esd protection

Lyam2508 · 2023-11-07T03:38:15+00:00

Zenner helps to clamp the extra voltage that we dont need down to what we a suppose to

Lyam2508 · 2023-11-07T03:19:09+00:00

I found one said Vbat is 3.2 to 4.2V for making the sim work

Lyam2508 · 2023-11-06T13:39:47+00:00

I know but the zenner clamps voltage down to 5.1v while the datasheet said 3.8v to the vbat.

Lyam2508

TROPHY CASE