grizedale
Advanced Member level 3
Hello,
We are using an SMPS to supply current to a 24W LED display.
The vin = 24V
The leds flash on and off 400ms on and 300ms off.
There is minimal input capacitance so the 20KHz switching frequency is also pulled from the input voltage supply.
How can we measure this pulsating current accurately?
We only have a TDS210 oscillscope, and also a fluke 179 DVM.
tHE tds210 DOES not allow us to average a current sense resisotr voltage, so is of little use to us
**broken link removed**
We are using an SMPS to supply current to a 24W LED display.
The vin = 24V
The leds flash on and off 400ms on and 300ms off.
There is minimal input capacitance so the 20KHz switching frequency is also pulled from the input voltage supply.
How can we measure this pulsating current accurately?
We only have a TDS210 oscillscope, and also a fluke 179 DVM.
tHE tds210 DOES not allow us to average a current sense resisotr voltage, so is of little use to us
**broken link removed**