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5725A
Instruction Manual
4-2
4-30. Optoisolator Link......................................................................... 4-18
4-31. Break-Detect Circuitry................................................................. 4-19
4-32. Power Up and Reset Circuitry..................................................... 4-19
4-33. Watchdog Timer.......................................................................... 4-19
4-34. Current Amplifier Assembly (A2)................................................... 4-19
4-35. Error Amplifier Section............................................................... 4-21
4-36. Output Stage Section ................................................................... 4-22
4-37. Monitor Section........................................................................... 4-22
4-38. Control and Switching Section.................................................... 4-23
4-39. Power Supply Section.................................................................. 4-23
4-40. High Voltage Amplifier (A3)........................................................... 4-24
4-41. Input Amplifier............................................................................ 4-24
4-42. Integrator...................................................................................... 4-26
4-43. Window Comparator ................................................................... 4-26
4-44. Input Clamp ................................................................................. 4-26
4-45. Transconductance and Cascode Stage......................................... 4-27
4-46. Midstage ...................................................................................... 4-27
4-47. Midstage -400V Filter ................................................................. 4-27
4-48. High Voltage Heat Sink Assemblies ........................................... 4-27
4-49. Autobias Current Source ............................................................. 4-28
4-50. Autobias Sense Circuit ................................................................ 4-28
4-51. High Voltage Amplifier Feedback............................................... 4-29
4-52. Signal Transformers .................................................................... 4-29
4-53. Temperature Monitoring.............................................................. 4-29
4-54. High Voltage Sense Assembly (A6) ................................................ 4-30
4-55. Sense Amplifier Section.............................................................. 4-32
4-56. Analog Monitor Section .............................................................. 4-34
4-57. Serial Interface/Guard Crossing Section ..................................... 4-35
4-58. Analog Input Switching Section.................................................. 4-35
4-59. Control Section............................................................................ 4-36
4-60. AC Line Voltage Selection Section............................................. 4-37