Exelente explicación saludos desde Colombia 🚜en el camino del conocimiento, gracias a diesel laptops y todo su grupo de trabajo con el sueño de poder adquirir sus productos y todo ese valioso conocimiento para aplicarlo y compartirlo 🙏🤝
Muy buena prueba ,se hizo entender facil sin tanta palabra. Asi deben ser todas las pruebas,que se entiendan de manera facil porque no todas las personas tienen facil comprension ni tampoco son profesionales en el tema. 👍
So on bad cables and such, will it cause the scope to give us bad readings? I know batteries will so if it is out of spec and not the diodes and batteries are charged testing good would you verify good cables and such?
Usually no more than .5 volt peak to peak. That's industry standard. However there are variables. I recommend getting known good readings for every model and saving it.
Good afternoon! We did mean to say AC ripple. Remember, alternators create AC voltage internally, then that voltage passes through a rectifier bridge to filter the AC voltage into DC. So by performing an AC ripple test, you are verifying that component is functioning properly and not getting AC voltage on a DC system. Thanks!
As you note, the rectifier converts the Alternating Current (AC) to Direct Current (DC). If ripple is being measured on the downstream side of the rectifier (say at the battery, and if the rectifier is doing its job, seems that the ripple would be DC. DC rising and falling by a few millivolts. Ripple when seen on an oscilloscope. I am guessing that the term AC ripple test was coined by someone that did not understand rectifiers very well.@@DieselLaptops
That is exactly what we are testing. This test helps verify the rectifier bridge DOES NOT have a failure allowing AC voltage to pass through into a DC system(diode failure). A scope or multimeter will show you if you have excessive AC voltage on this system(AC ripple). You will get a very small amount of AC even on a good system just due to the filtering effects of a rectifier, but if it exceeds the spec of half of a volt AC(diode failure), you could have some electrical issues in your system as the control modules work off of DC. Thank you and hope this helps!@@jethro983
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Nice. Always making it easier for us Mike. Thanks
Exelente explicación saludos desde Colombia 🚜en el camino del conocimiento, gracias a diesel laptops y todo su grupo de trabajo con el sueño de poder adquirir sus productos y todo ese valioso conocimiento para aplicarlo y compartirlo 🙏🤝
Experience diagnosis master mi respect para ustes master
Mike, great video and info!!
Muy buena prueba ,se hizo entender facil sin tanta palabra.
Asi deben ser todas las pruebas,que se entiendan de manera facil porque no todas las personas tienen facil comprension ni tampoco son profesionales en el tema.
👍
Great video thank you 👍
Thanks Busjockey!
Love it great content guys
So on bad cables and such, will it cause the scope to give us bad readings? I know batteries will so if it is out of spec and not the diodes and batteries are charged testing good would you verify good cables and such?
Good as always
Is Mike still teaching with your company ?
THANKS!!!
What is a general rule for ripple limits?
Usually no more than .5 volt peak to peak. That's industry standard. However there are variables. I recommend getting known good readings for every model and saving it.
Pulsating DC voltage.
You mention that it is AC ripple. I don't think so. It should be DC ripple.
Good afternoon! We did mean to say AC ripple. Remember, alternators create AC voltage internally, then that voltage passes through a rectifier bridge to filter the AC voltage into DC. So by performing an AC ripple test, you are verifying that component is functioning properly and not getting AC voltage on a DC system. Thanks!
As you note, the rectifier converts the Alternating Current (AC) to Direct Current (DC). If ripple is being measured on the downstream side of the rectifier (say at the battery, and if the rectifier is doing its job, seems that the ripple would be DC. DC rising and falling by a few millivolts. Ripple when seen on an oscilloscope. I am guessing that the term AC ripple test was coined by someone that did not understand rectifiers very well.@@DieselLaptops
That is exactly what we are testing. This test helps verify the rectifier bridge DOES NOT have a failure allowing AC voltage to pass through into a DC system(diode failure). A scope or multimeter will show you if you have excessive AC voltage on this system(AC ripple). You will get a very small amount of AC even on a good system just due to the filtering effects of a rectifier, but if it exceeds the spec of half of a volt AC(diode failure), you could have some electrical issues in your system as the control modules work off of DC. Thank you and hope this helps!@@jethro983