Hi all,
I thought I'd share my effort at a test load, well two actually.
The biggie has a 1% 20W SMT sense resistor and 8A diodes.
You can select the number of diodes by moving the 2mm "banana" jump lead, the sockets are just a 5mm brass rod with a 2mm hole drilled in the centre and soldered to the board.
The small version is for blue diodes only (no jumpers) - the resistor is 1% 5W and 1.5 A diodes, but they get hot at 0.5A so I might need to heat sink them somehow.
I've mades some simple linear LD1085 driver boards that just need soldering up...those 10uf 10v caps are tiny !!!
I was thinking, what is the effect of the forward voltage spec' of the diodes, how much difference does that make when setting the current of the driver - I guess not much???? (experts please jump in )
ATB
MM
I thought I'd share my effort at a test load, well two actually.
The biggie has a 1% 20W SMT sense resistor and 8A diodes.
You can select the number of diodes by moving the 2mm "banana" jump lead, the sockets are just a 5mm brass rod with a 2mm hole drilled in the centre and soldered to the board.
The small version is for blue diodes only (no jumpers) - the resistor is 1% 5W and 1.5 A diodes, but they get hot at 0.5A so I might need to heat sink them somehow.
I've mades some simple linear LD1085 driver boards that just need soldering up...those 10uf 10v caps are tiny !!!
I was thinking, what is the effect of the forward voltage spec' of the diodes, how much difference does that make when setting the current of the driver - I guess not much???? (experts please jump in )
ATB
MM