BUL45 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

BUL45

POWER TRANSISTOR 5.0 AMPERES 700 VOLTS 35 and 75 WATTS

Motorola => Freescale 

BUL45 BUL45F

The BUL45/BUL45F Bipolar Power Transistors were

specially designed for use in electronic lamp ballasts. A

circuit designed by Motorola applications was built to

demonstrate how well these devices operate. The circuit and

detailed component list are provided below.

D10

D8

FUSE

CTN

AC LINE

220 V

COLLECTOR CURRENT SENSE

(USE EXTERNAL STRAPS)

22 µF 385 V

C1

MUR150

D3

Q1

IC

D5

47 Ω

D9

470 kΩ

1Ω

T1A

T1B

D7

D1 1N4007

IC Q2

D6

C2

MUR150

47 Ω

0.1 µF 100 V

D2

D4

1N5761

1Ω

1000 V

C5 400 V

0.1 µF

15 µF

C4

TUBE

C3 1000 V 400 V

L

10 nF C6 0.1 µF

5.5 mH

Components Lists

Q1 =

D1 =

D2 =

D3 =

D5 =

D7 =

CTN =

L=

T1 =

Q2 = BUL45 Transistor

1N4007 Rectifier

1N5761 Rectifier

D4 = MUR150

D6 = MUR105

D8 = D9 = D10 = 1N400

47 Ω @ 25°C

RM10 core, A1 = 400, B51 (LCC) 75 turns,

wire ∅ = 0.6 mm

FT10 toroid, T4A (LCC)

Primary: 4 turns

Secondaries: T1A: 4 turns

Secondaries: T1B: 4 turns

All resistors are 1/4 Watt, ±5%

R1 = 470 kΩ

R2 = R3 = 47 Ω

R4 = R5 = 1 Ω (these resistors are optional, and

might be replaced by a short circuit)

C1 = 22 µF/385 V

C2 = 0.1 µF

C3 = 10 nF/1000 V

C4 = 15 nF/1000 V

C5 = C6 = 0.1 µF/400 V

NOTES:

1. Since this design does not include the line input filter, it cannot be used “as–is” in a practical industrial circuit.

2. The windings are given for a 55 Watt load. For proper operation they must be re–calculated with any other loads.

Figure 22. Application Example

8

Motorola Bipolar Power Transistor Device Data

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