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2SC3306 Datasheet PDF – Toshiba
daatsheet Once the power supply is up and running, I can plug the coolers back in and 2ssc3306 unit cools perfectly. I keep seeing alot if info regarding ripple current, but not ESR. I also look for resistors that are darkened from heat, don’t see any in your picture. If the peltiers are plugged in at power up, the voltage between pins 12 and 7 is about 1.
It could be that the soft start circuit is not ok. Ok, sorry it took me a few days to get this check done. Oct 18, 4.
2SC Datasheet(PDF) – Inchange Semiconductor Company Limited
Usually with this type of psu, there will be a delay to get the 12v up working, then it will power the peltiers, there must be a slave datahseet on the board to give the ic its 12v. Radar Gun If you’re a speeder or sports player you may have experience with one of these! Oct 18, I figured this is what blew the power supply. Oct 18, dayasheet. Do you already have an account?
It’s also where manufacturers pinch pennies and buy cheap. Oct 18, 9.
Oct 17, 2. The peltiers are connected to the relays you mentioned via the NC contact. The TL usally has a slave start up oscillator oscthat produces its voltage, then the the ic takes over and feeds the start up osc with sync pulses to produce the desired regulated voltage,so your circuit will be similar to this design ,without the dataxheet amp chip.
Is this a common problem with a SMPS? Jun 22, 7, 1, Dec darasheet, 7 0. Once I disconnect them the power supply comes to life. Dodgydave – Yes, it is a 12V output supply. Oct 18, 6.
I also noticed that, once up and running, one of the heat sinked power transistors and its associated V uF input cap is getting very datzsheet. Clearly didn’t know that. Your name or email address: I also checked the other fridge components thermoelectric peltier coolers and four fans using a DC bench power supply.
C3306 Datasheet PDF – Toshiba Semiconductor
As soon as the peltiers are disconnected the voltage jumps to 12V and the rest of the unit powers up fans, LCD, etc Solar Datashet Security Light In this teardown, we will look at the internals of a motion-activated light which contains its own solar charging system. Sep 7, 2, Can anyone tell me what type of SMPS this is? Oct 17, 3. I just can’t get the power supply to fully power up without manually disconnecting the peltiers then plugging them back in.
Yes, my password is: The fans are wired to run all the time. After that I can plug the peltiers in and the unit continues to run fine and cools quite well. I do have a low budget scope, so I checked out pin 4.
Also, I can’t seem to find the datasheet for these caps anymore.
AS to the cooking switch transistor: Oct 18, 8. Are these related somehow? Quote of the day. Oct 21, Not obviously bad, but certainly not good. I’d like to check the ESR again since the overheat. I checked both input capacitors ESR and found them to be at the datasheet max limit. Oct 17, 1.