Uc3842 Battery Charger Schematic. The uc3842 family and highlights the features of each in dividual member the uc3842 uc3843 uc3844 and uc3845 throughout the text the uc3842 part number will be referenced however the generalized circuits and performance characteristics apply to each member of the uc3842 series unless otherwise noted. Typical application for uc3842 off line flyback regulator.
The problem is that the supply voltage of 3842 vcc are oscillating and i couldn t fix it at 16v and supply cannot start because 3842 on volt are 18v. Battery charger circuit power electronic projects smps circuits date 2019 03 20. The diehard battery charger has a rugged durable metal case with a top mounted carrying handle.
The problem is that the supply voltage of 3842 vcc are oscillating and i couldn t fix it at 16v and supply cannot start because 3842 on volt are 18v.
When i remove the chip from circuit it goes to 18v accurately. A review of cur. The diehard 12 amp fully automatic automotive battery charger with 75 amp engine includes a start feature for emergency starting situations. It s built in a similar way as ordinary flyback switching power supply with integrated circuit uc3842 and tl431.
