Author Topic: MSO5000 Signal generator question  (Read 496 times)

0 Members and 1 Guest are viewing this topic.

Offline adras

  • Contributor
  • Posts: 39
  • Country: de
MSO5000 Signal generator question
« on: August 10, 2019, 06:58:03 pm »

As I want to play around with some 12V PWM fans, I need a 22khz signal to get them running. Luckily the MSO 5000 series has a 2 channel signal generator. But since a lot of things can go wrong when you're playing around with electronics I was afraid I could kill my precious Oscilloscope. The idea is simple, what if I accidentally hook up 12V+GND to the signal generator probe? Will it survive that?

Hope somebody can shed some light on this.

Online ledtester

  • Super Contributor
  • ***
  • Posts: 2144
  • Country: us
Re: MSO5000 Signal generator question
« Reply #1 on: August 13, 2019, 06:57:06 pm »
Some ideas:

- use an optocoupler to isolate your signal generator from your fan circuit; here's a discussion with a schematic:

- use a cheap microcontroller to generate the pwm signal
- get one of these:

(search for "Signal Generator PWM Pulse Frequency Duty Cycle")

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo