14V Battery Charger Using a Computer Power Supply скачать в хорошем качестве

14V Battery Charger Using a Computer Power Supply

what is ATX? The most well known power supplies of a high current low voltage are AT or ATX supplies from computers. Their disadvantage is a poorly regulated output voltage and often a need to load both of the two main outputs (5 and 12V) at the same time. Therefore, I present a simple modification of an AT or ATX PC power supply to an adjustable battery charger 3 - 15V with a short circuit protection. proper regulation and an output current corresponding to the original 12V output. The voltage feedback is connected to pin 1 of TL494 control chip (or its equivalent KA7500, KIA494, TL494 ...). The reference voltage is 2.5 V (i.e. the circuit regulates the output voltage so that the voltage of the resistive divider is 2.5 V). Originally the feedback is connected to both 5 and 12V outputs and it works well only when both outputs are loaded. After this modification, the feedback is only connected to the 12V output. A potentiometer regulates the voltage from 3 to 15 V. The potentiometer can be replaced by a fixed resistor to set a constant voltage if needed $2 for 5Pcs 1-4 Layer PCBs, Register to Get Coupons: https://m.jlcpcb.com?from=Shot #batterycharger #charger #12v #powersupply #atx #smps #14V #leadacid #carbattery #14vcharger car battery charger, 15a charger, power supply, atx power supply, electronics, car battery, 14v charger, auto battery charger, car charger, 14v power supply, lead acid battery, lead acid charger, 12v power supply, portable charger, battery charger, smart charger, universal charger, lead acid, smart battery, 14v battery, ac power supply, smart battery charger, 12v charger, 12v auto charger