FLUKE 5725a__imeng0700 电路图.pdf

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1、January 1989 Rev. 7, 06/02 1993, 2002 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies. 5725A Amplifier Instruction Manual RadioFans.CN 收音机爱 好者资料库 LIMITED WARRANTY AND LIMITATION OF LIABILITY E

2、ach Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days. This warranty extends only to the original buyer or end

3、-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries, or to any product which, in Flukes opinion, has been misused, altered, neglected, contaminated, or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will

4、operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption. Fluke authorized resellers shall extend this warranty on new and

5、unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the r

6、ight to invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another country. Flukes warranty obligation is limited, at Flukes option, to refund of the purchase price, free of charge repair, or replacement of a defective pro

7、duct which is returned to a Fluke authorized service center within the warranty period. To obtain warranty service, contact your nearest Fluke authorized service center to obtain return authorization information, then send the product to that service center, with a description of the difficulty, pos

8、tage and insurance prepaid (FOB Destination). Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). If Fluke determines that failure was caused by neglect, misuse, contamination, alteration, accident,

9、or abnormal condition of operation or handling, including overvoltage failures caused by use outside the products specified rating, or normal wear and tear of mechanical components, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair,

10、the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point). THIS WARRANTY IS BUYERS SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED

11、 TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING FROM ANY CAUSE OR THEORY. Since some countries or states do not allow limitation of th

12、e term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held invalid or unenforceable by a court or other decision-maker of competent jurisdict

13、ion, such holding will not affect the validity or enforceability of any other provision. Fluke Corporation P.O. Box 9090 Everett, WA 98206-9090 U.S.A. Fluke Europe B.V. P.O. Box 1186 5602 BD Eindhoven The Netherlands 11/99 To register your product online, visit RadioFans.CN 收音机爱 好者资料库 i Table of Con

14、tents Chapter Title Page 1 Introduction and Specifications . 1-1 1-1. Introduction . 1-3 1-2. Where to Go From Here . 1-4 1-3. How to Use the Manuals . 1-5 1-4. 5725A Getting Started Manual . 1-5 1-5. 5725A Instruction Manual . 1-5 1-6. 5700A/5720A Series II Manual Set . 1-5 1-7. 5700A/5720A Series

15、II Operator Manual . 1-5 1-8. 5700A/5720A Series II Operator Reference Guide . 1-5 1-9. 5700A/5720A Series II Remote Programming Reference Guide . 1-6 1-10. 5700A/5720A Series II Service Manual . 1-6 1-11. Specifications . 1-6 1-12. DC Voltage Specifications . 1-7 1-13. AC Voltage Specifications . 1

16、-10 1-14. Resistance Specifications . 1-16 1-15. DC Current Specifications . 1-20 1-16. AC Current Specifications . 1-23 1-17. Wideband AC Voltage (Option 5700-03) Specifications . 1-28 1-18. General Specifications . 1-29 1-19. Auxiliary Amplifier Specifications . 1-30 2 Installation . 2-1 2-1. Intr

17、oduction . 2-3 2-2. Unpacking and Inspection . 2-3 2-3. Service Information . 2-5 2-4. Placement and Rack Mounting . 2-5 2-5. Cooling Considerations. 2-5 2-6. Connecting to the 5700A Calibrator . 2-6 2-7. Selecting Line Voltage . 2-7 2-8. Accessing the Fuse . 2-8 2-9. Connecting to Line Power . 2-9

18、3 Operating Notes. 3-1 3-1. Introduction . 3-3 3-2. Front Panel Features . 3-4 RadioFans.CN 收音机爱 好者资料库 5725A Instruction Manual ii 3-3. Rear Panel Features . 3-6 3-4. Turning on the 5725A Amplifier . 3-8 3-5. Warm Up. 3-8 3-6. 5725A Operating Functions and Modes . 3-9 3-7. Standby . 3-9 3-8. Voltage

19、 Standby . 3-10 3-9. Current Standby . 3-11 3-10. Voltage Operate . 3-12 3-11. Current Operate . 3-13 3-12. Conditions That Activate the 5725A . 3-14 4 Theory of Operation . 4-1 4-1. Introduction . 4-3 4-2. Overall Functional Description . 4-3 4-3. 1100V AC Range Functional Description . 4-5 4-4. 11

20、A Range Functional Description . 4-6 4-5. Operation in the 11A DC Range . 4-7 4-6. Operation in the 11A AC Range . 4-7 4-7. Voltage and Current Standby Modes . 4-7 4-8. Voltage Standby . 4-7 4-9. Current Standby . 4-7 4-10. How the 5700A and 5725A Communicate . 4-8 4-11. Description of the Out-Guard

21、 Lines (5725A Side) . 4-8 4-12. Description of the In-Guard Lines . 4-9 4-13. Functional Summaries by Assembly . 4-10 4-14. Detailed Circuit Description . 4-11 4-15. Interconnect Assembly (A1) . 4-11 4-16. Power Supply Assembly (A4) . 4-12 4-17. High Voltage Supply Section . 4-13 4-18. Switching Sec

22、tion . 4-14 4-19. Current-Limit Section . 4-15 4-20. System Supply Section . 4-15 4-21. Fan Supply Section . 4-16 4-22. Digital Assembly (A5) . 4-16 4-23. Microcomputer . 4-16 4-24. External RAM. . 4-16 4-25. External ROM . 4-16 4-26. EEROM . 4-18 4-27. Data Latch . 4-18 4-28. Strobe Lines . 4-18 4-

23、29. Led Driver . 4-18 4-30. Optoisolator Link . 4-18 4-31. Break-Detect Circuitry . 4-18 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-

24、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 Contents (continued) iii 4-43. Window Comparator . 4-26 4-44. Input Clamp . 4-26 4-45. Transconductance and Cascode Stage . 4-2

25、7 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. H

26、igh 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 5 Calibration and Verification . 5-1 5-1. Introduction . 5-3 5-2. Where to Find Further Information . 5-3 6 Maintenance . 6-1 6-1. Introduction . 6-3 6-