Pulse and Digital Circuits

13.1 INTRODUCTION

We saw in Chapter 12 that voltage sweep generators are used where smaller deflections of the electron beam are required, such as in CROs with small screens mainly because of the requirement of supply voltages, as the deviation from linearity is negligible only when the supply voltage is significantly higher than the sweep amplitude. This condition implies that supply voltages could be prohibitively high if larger sweep amplitude is required to achieve larger deflections of the electron beam, as in the case of television and radar receivers. In such instances, voltage sweep generators will not meet the requirements and hence, the need for current sweep generators. The basic principle employed in current sweep generators is electromagnetic ...