461
edits
Changes
Jump to navigation
Jump to search
Line 89:
Line 89: + + + + + +
no edit summary
| RE || emitter resistance || 0.37<math>\Omega</math> || 1<math>\Omega</math>
| RE || emitter resistance || 0.37<math>\Omega</math> || 1<math>\Omega</math>
|}
|}
=== Transistor operating point ===
Each transistor has an operating point, <math>U_1</math> and <math>U_2</math>. Both are initially assumed to be 0.7V. Under DC conditions (<math>I_{in} = 0</math>A, <math>f = 0</math>Hz) we iterate on U to refine these two parameters. Each iteration refines the operating point by averaging the current operating point with the associated <math>V_{be}</math>. <math>V_{be}</math> is the base-to-emitter voltage of the transistor and is given by
* <math>V_{be1} = V_3</math>
* <math>V_{be2} = V_7 - V_4</math>.
=== Derived parameters ===
=== Derived parameters ===