1996 Sep 26

6

Philips Semiconductors

Product specification

Damper diode

BY278

APPLICATION INFORMATION

For horizontal deflection circuits, two basic applications are shown in Figs 8 and 9.

The basic application waveforms in Fig.10 relate to the circuit in Fig.8. In the circuit in Fig.9 the forward conduction time

Fig.8

Application in basic high-voltage E/W

modulator circuit.

D1 = BY278.

handbook, halfpage

MBE935

LY

D1

+ (E-W)

horizontal

deflection

transistor

Fig.9

Application in basic horizontal deflection

circuit.

D1 = BY278.

handbook, halfpage

Cf

Cs

LY

D1

MBE934

horizontal

deflection

transistor

Fig.10 Basic application waveforms.

handbook, full pagewidth

T

I F

VR

t p

I FRM

VRRM

I FWM

time

time

MCD430 - 1