Large current adjustable voltage stabilization power supply circuit

Published:2011/6/22 1:48:00 Author:TaoXi | Keyword: Large current, adjustable, voltage stabilization, power supply | From:SeekIC

Circuit and working principle The pin figure of the TL413 is as shown in figure 1, the typical application of the TL413 is as shown in figure 2, the output voltage of pin-2 and pin-3 are V=2．5(R2十R3)V/R3. If we change the resistance value of R2, we can change the output reference voltage. Figure 3 shows the output current (about 6A) that is composed of the voltage reference and the regulator (the TL413 drives the external FET K790), this circuit is simple and safe. The voltage regulation process: when the output voltage reduces, the electric potential of point f reduces, this potential is amplified by the T1431 to increase the voltage of point e, and it is adjusted by the K790, the electric potential of point b rises; on the contrary, when the output voltage rises, the electric potential of point f rises too, the electric potential of point e reduces, and it is adjusted by the K790, the electric potential of point b reduces.



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