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DC-DC Converter

DC-DC Converter

7

8

5

6

2

4

3

1

IC1

MC34063

+

+

R1

0.15

Ohm

1W

R2

2K7

L1

220uH

R3

1K

C2

470P

C1

100UF

25V

D1

MBR2545

C3

47UF

25V

R4

15

Ohm

2W

LED1

12V

BATT.

S1

ON/OFF

Switch

Note: LED1 = 1W, White LED

DC-DC Converter

28
0
0
publish time: 2020-09-17
Circuit Everyday

This simple circuit allows you to drive a 1W LED with a car battery. The IC MC34063 is used here as a buck converter. It is a monolithic switching regulator subsystem that can be used as a DC-DC converter. The device includes an internal temperature compensation reference, a comparator, an oscillator with an active-controlled duty cycle, a current limiting circuit, a driver and a high-current output switch. These functions are contained in an 8-pin dual in-line package.

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