D 3.52 Design a 7.5-V zener regulator circuit using a 7.5- V zener specified at 12 mA. The zener has an incremental resistance r, = 30 2 and a knee current of 0.5 mA. The regu- lator operates from a 10-V supply and has a 1.2-k2 load. What is the value of R you have chosen? What is the regula- tor output voltage when the supply is 10% high? Is 10% low? What is the output voltage when both the supply is 10% high and the load is removed? What is the smallest possible load resistor that can be used while the zener oper- ates at a current no lower than the knee current while the supply is 10% low?
D 3.52 Design a 7.5-V zener regulator circuit using a 7.5- V zener specified at 12 mA. The zener has an incremental resistance r, = 30 2 and a knee current of 0.5 mA. The regu- lator operates from a 10-V supply and has a 1.2-k2 load. What is the value of R you have chosen? What is the regula- tor output voltage when the supply is 10% high? Is 10% low? What is the output voltage when both the supply is 10% high and the load is removed? What is the smallest possible load resistor that can be used while the zener oper- ates at a current no lower than the knee current while the supply is 10% low?
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:D 3.52 Design a 7.5-V zener regulator circuit using a 7.5-
V zener specified at 12 mA. The zener has an incremental
resistance r. = 30 S2 and a knee current of 0.5 mA. The regu-
lator operates from a 10-V supply and has a 1.2-k2 load.
What is the value of R you have chosen? What is the regula-
tor output voltage when the supply is 10% high? Is 10%
low? What is the output voltage when both the supply is
10% high and the load is removed? What is the smallest
possible load resistor that can be used while the zener oper-
ates at a current no lower than the knee current while the
supply is 10% low?
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