Fluke 43B - Circuit Descriptions

3-1
Chapter 3
Circuit Descriptions
Title Page
3.1 Introduction................................................................................................. 3-3
3.2 Block Diagram ............................................................................................ 3-3
3.2.1 Input 1 - Input 2 Measurement Circuits............................................... 3-3
3.2.2 Trigger Circuit ..................................................................................... 3-5
3.2.3 Digital Circuit ...................................................................................... 3-5
3.2.4 Power Circuit....................................................................................... 3-6
3.2.5 Start-up Sequence, Operating Modes .................................................. 3-7
3.3 Detailed Circuit Descriptions...................................................................... 3-9
3.3.1 Power Circuit....................................................................................... 3-9
3.3.2 Input 1 - Input 2 Measurement Circuits............................................... 3-15
3.3.3 Trigger Circuit ..................................................................................... 3-20
3.3.4 Digital Circuit ...................................................................................... 3-24