jmx66
Member level 5
Hi all,
Project: basic swich mode power supply output :2-3 A and 24 -25 V
I only need to know power for resistors R1 and R adjust 1 ( See schematic )
LM26 2673 Datasheet
https://www.ti.com/lit/ds/symlink/lm2673.pdf
RK8012 80VA 2 x 12 V 2 x 1,33 A
https://www.reichelt.de/Ringkerntra...U11a5d5257676d424785d6d96149a4495&LANGUAGE=EN
For R1 = 1 KOhm Vfeedback= 1,21 V so 1,21/1000 = 1mA P= 1,21 mW 0,6 W right math and value ?
For R adjust1, how to compute right power ??
10 KOhm, can't find 8,62 KOhm
As usual, thanks a lot for your help.
jm
Project: basic swich mode power supply output :2-3 A and 24 -25 V
I only need to know power for resistors R1 and R adjust 1 ( See schematic )
LM26 2673 Datasheet
https://www.ti.com/lit/ds/symlink/lm2673.pdf
RK8012 80VA 2 x 12 V 2 x 1,33 A
https://www.reichelt.de/Ringkerntra...U11a5d5257676d424785d6d96149a4495&LANGUAGE=EN
For R1 = 1 KOhm Vfeedback= 1,21 V so 1,21/1000 = 1mA P= 1,21 mW 0,6 W right math and value ?
For R adjust1, how to compute right power ??
10 KOhm, can't find 8,62 KOhm
As usual, thanks a lot for your help.
jm