84
Theory of Operation
This chapter provides bl ock diagram level descri ptio ns of the po wer suppl y.
The descriptions provide a basic understanding of circuit operation and are
intended as an aid in troubleshooting. It is assumed in the following discussions
that you are familiar with the operating and programming instructions
presented in the E3633A and E3634A User’s Guide. Subjects covered include
the following:
• Block Diagram Overview, starting on page 85
• AC Input and Bias Suppli es, on page 87
• Floating Logic, starting on page 88
• D-to-A Converter, on page 90
• A-to- D Converter, on page 91
• Pow er Mesh and Control, starting on page 92
• Earth-Referenced Logic, on page 94
• Front Panel, on page 94