Voltage Regulation using Zener Diode & Transistor

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Product Details:

Display No display (external voltmeter recommended)
Power Dependent on load; typically up to 1.5W
Voltage Input: 12V DC; Output: Regulated 5V DC (as per Zener rating)
Usage Voltage regulation, power supply stabilization, lab experiments
Product Type Analog voltage regulator circuit
Material PCB, electronic components (Zener diode, transistor, resistors, capacitors)
Design Conventional series voltage regulator (Zener controlled base of transistor)
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Voltage Regulation using Zener Diode & Transistor Price And Quantity

Minimum Order Quantity 1 Unit

Output Current Capacity Up to 500 mA (depending on transistor & heat dissipation)
Circuit Protection Basic overcurrent resistance via transistor
Connector Type Screw terminals or solder pads
Zener Diode Rating 5V, 0.5W (typical)
Input Voltage Range 9V to 15V DC
Regulation Type Series voltage regulation
Maintenance Minimal; replace faulty components as needed
Mounting Type Through-hole components
Transistor Type General purpose NPN, e.g., BC547 or similar
Heat Dissipation Requires heat sink for higher currents
Operating Temperature 0°C to +50°C
Compliance Not certified for industrial/commercial use (educational purpose only)
Application Area Electronics lab, DIY projects, educational demonstration
PCB Type Single side phenolic or FR4 board
Temperature Stability Good, limited by Zener characteristics

Voltage Regulation using Zener Diode & Transistor Product Specifications

Detector Not applicable (Regulation circuit)
Voltage Input: 12V DC; Output: Regulated 5V DC (as per Zener rating)
Usage Voltage regulation, power supply stabilization, lab experiments
Product Type Analog voltage regulator circuit
Power Dependent on load; typically up to 1.5W
Illuminant None (not illuminated)
Weight Approx. 40 grams (depends on components)
Dimension (L*W*H) Assembled on PCB; Approx. 8 cm x 6 cm x 2 cm
Design Conventional series voltage regulator (Zener controlled base of transistor)
Material PCB, electronic components (Zener diode, transistor, resistors, capacitors)
Display No display (external voltmeter recommended)
Power Source DC power supply (external input required)
Charging Time Not applicable (Not a battery-based product)
Accuracy 2% (Voltage regulation output tolerance)

Output Current Capacity Up to 500 mA (depending on transistor & heat dissipation)
Circuit Protection Basic overcurrent resistance via transistor
Connector Type Screw terminals or solder pads
Zener Diode Rating 5V, 0.5W (typical)
Input Voltage Range 9V to 15V DC
Regulation Type Series voltage regulation
Maintenance Minimal; replace faulty components as needed
Mounting Type Through-hole components
Transistor Type General purpose NPN, e.g., BC547 or similar
Heat Dissipation Requires heat sink for higher currents
Operating Temperature 0°C to +50°C
Compliance Not certified for industrial/commercial use (educational purpose only)
Application Area Electronics lab, DIY projects, educational demonstration
PCB Type Single side phenolic or FR4 board
Temperature Stability Good, limited by Zener characteristics

Voltage Regulation using Zener Diode & Transistor Trade Information

Supply Ability 5 Unit Per Week
Delivery Time 4-5 Days

Product Description

Study of Voltage Regulation using Zener Diode and Transistor (AE 258 )

Objective : Study of line and load Regulation in DC Regulated Power Supply using Zener Diode and Transistor

Features : Instrument comprises of AC Power Supply, three meters to measure Output Voltage, Output Current & AC Ripples directly, two PN Junction Diodes, Filter, Regulation circuit using Zener Diode and Transistor, load Resistances selectable using band switch & all important connections brought out on 4mm Sockets.

Reliable 5V Output for Varied Input

The circuit delivers a steady 5V output even as the DC input varies from 9V to 15V, ensuring dependable performance in typical lab and DIY settings. This stable voltage is achieved using a Zener diode for reference and an NPN transistor for current handling, providing improved regulation suitable for sensitive low-voltage electronics.

Simple, Robust Construction for Learning and Projects

Designed for ease of assembly and educational value, the circuit uses through-hole components on a compact single-side PCB (approx. 8 cm x 6 cm). Minimal maintenance is required, and heat dissipation is enhanced with a heat sink when handling higher currents. This makes it accessible for students, hobbyists, and trainers alike.

Safe Power Regulation with Basic Protection

The design includes basic overcurrent resistance through the transistor configuration, providing a level of circuit protection. It is not intended for industrial uses but serves as an excellent demonstration tool and practical voltage source for bench experiments and small-scale electronic devices.

FAQs of Voltage Regulation using Zener Diode & Transistor:

Q: How does the voltage regulator maintain a constant 5V output?

A: The circuit utilizes a 5V Zener diode as a voltage reference. The NPN transistor operates in series mode, amplifying the current while maintaining the voltage regulated by the Zener diode. This arrangement stabilizes the output at 5V, even if the input voltage fluctuates within the specified range.

Q: What is the process for assembling and using the voltage regulator?

A: Assembly involves mounting all components (Zener diode, transistor, resistors, capacitors) onto a single-sided PCB and ensuring proper heat sink installation for the transistor, especially for higher current loads. Connect the input DC (9V15V) via screw terminals or solder pads, and draw your regulated 5V output in a similar manner.

Q: When should I use this voltage regulator circuit?

A: This voltage regulator is suitable for electronics lab work, DIY projects, educational demonstrations, and any situation requiring a stable 5V DC supply up to 500 mA. It is not recommended for commercial or industrial applications due to lack of certification.

Q: Where can the voltage regulator be installed or used?

A: It can be installed anywhere a single-side PCB can be accommodated, typically in a benchtop power setup for lab experiments, school projects, or DIY kits where a consistent 5V power source is necessary.

Q: What are the main benefits of using a Zener diode and transistor in series regulation?

A: This combination offers precise voltage regulation (2%), good current-handling capacity up to 500 mA, and basic overcurrent protection. The design is cost-effective, reliable, easy to maintain, and educational for understanding fundamental voltage regulation principles.

Q: How do I ensure safe operation and avoid overheating?

A: Use an appropriate heat sink with the transistor when drawing high currents close to 500 mA. Ensure component ratings (particularly for the Zener diode and transistor) are not exceeded, and keep the device within the recommended operating temperature (0C to 50C).

Q: What should I do if the output voltage is not stable or the circuit malfunctions?

A: Check for faulty connections, ensure the Zener diode and transistor are functioning, and inspect for signs of overheating or damage. Replace any defective components as needed. Since maintenance is minimal, these steps usually resolve most issues in educational or lab use.

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