Question
Download Solution PDFIn Shunt Zener diode voltage regulator circuit, the purpose of the resistor (R) connected in series with the input voltage is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFZener diode
- A Zener diode is a heavily doped semiconductor device that is designed to operate in the reverse direction.
- Under the forward-bias condition, the zener diode works as a normal PN junction diode.
- During the reverse-bias condition, when the voltage across the terminals of a zener diode reaches the zener Voltage (breakdown voltage), the junction breaks down, and the current flows from the cathode to the anode.
Explanation
In a Shunt Zener Diode Voltage Regulator, the resistor R is connected in series with the input voltage before the Zener diode. The Zener is connected in parallel with the load.
Purpose of Resistor R:
- To limit the current entering the Zener diode.
- Without this resistor, a high input voltage could cause excessive current through the Zener diode, potentially damaging it.
- It drops the excess voltage not used by the load or the Zener, thus protecting the circuit.
Last updated on Jun 16, 2025
-> RRB JE CBT 2 answer key 2025 for June 4 exam has been released at the official website.
-> Check Your Marks via RRB JE CBT 2 Rank Calculator 2025
-> RRB JE CBT 2 admit card 2025 has been released.
-> RRB JE CBT 2 city intimation slip 2025 for June 4 exam has been released at the official website.
-> RRB JE CBT 2 Cancelled Shift Exam 2025 will be conducted on June 4, 2025 in offline mode.
-> RRB JE CBT 2 Exam Analysis 2025 is Out, Candidates analysis their exam according to Shift 1 and 2 Questions and Answers.
-> The RRB JE Notification 2024 was released for 7951 vacancies for various posts of Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant, Chemical Supervisor (Research) and Metallurgical Supervisor (Research).
-> The selection process includes CBT 1, CBT 2, and Document Verification & Medical Test.
-> The candidates who will be selected will get an approximate salary range between Rs. 13,500 to Rs. 38,425.
-> Attempt RRB JE Free Current Affairs Mock Test here
-> Enhance your preparation with the RRB JE Previous Year Papers.