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Simple 15V And 5V Car Battery Supply Circuit Diagram

Written By buang hary on Kamis, 19 September 2013 | 08.46

This is a Simple 15V And 5V Car Battery Supply Circuit Diagram. In this circuit use IC1 is a switching regulator that generates a 45-kHz signal that drives the gate of MOSFET Ql. Dl, D2, and D3 are Schottky diodes. The 5-V output is sensed as a reference; feedback to the chip turns off the gate signal to Ql if the voltage rises above 5 V. 

Tl has Trifilar windings that assume about 2% regulation for a 10-to 100-mA load change on the ± 15-V supplies. R1/D4 provide over-voltage protection. Tl has a primary inductance of about 21 . Core size should allow 4-A peak currents. The turn ratios are IIV2 turns each for the 15-V supplies, ll1/2 turns for the primary, and four turns for the 5-V secondary. The efficiency is about 75%.


Simple 15V And 5V Car Battery Supply Circuit Diagram

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