Project Hub /Basic Analog & Power Electronics/Sequential, Timing & Pulse Circuits/Energy Saver Circuit For Two Heat Convectors

Intermediate

ANALOG / DISCRETE

₹500 – ₹1,500

3 – 6 Hours

Partial Kit

Energy Saver Circuit For Two Heat Convectors

An energy saver circuit built around the CD4060 timer IC that periodically switches two heat convectors on and off to reduce excessive power consumption.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

LM2596 Step Down DC-DC Buck Converter Rs. 99.00
10pcs 5mm RED Diffused Light Emitting Diodes - LEDs Set Rs. 39.00
5V 1 Channel Relay Module Rs. 45.00
10pcs - 220 ohm 1/4 W Resistor Set Rs. 39.00
2-Slot 18650 Holder with Protective Cover and On/Off Switch – Case Rs. 109.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

This list includes a generic resistor set as a placeholder — it is not matched to the exact value or part number this circuit needs. The correct one is specified on the original source page linked above; check it before buying.

We don't carry yet: Voltage Regulator IC (7805 / LM317 / 1117)
Crystal / Oscillator
Diodes (1N4007 / 1N4148 / Schottky / Zener)
Capacitors
Transistors (BC547 / 2N2222 / TIP / MOSFET)
counter

Browse all components

How It Works

The Energy Saver Circuit For Two Heat Convectors operates by utilizing a step-down transformer (X1) along with 1N4007 diodes (D1-D4) and a 12V regulator 7812 (U1) to convert and regulate household AC power into a stable DC supply for the control logic. The core timing and sequencing functions are managed by the CD4060B counter/oscillator IC (U2), which integrates an internal oscillator with a ripple-carry binary counter. As the CD4060B progresses through its timing states, it sequentially triggers transistors (T1, T2) to drive two 12V single-changeover relays (RL1, RL2). These relays actuate to periodically switch the connected heat convectors on and off, moderating continuous heating cycles. Various resistors, capacitors, and a power switch (SW1) support the timing configuration and power state management, while a bank of 5mm LEDs (LED1-LED4) visually indicate the operational status and power distribution across the circuit stages.

Why Build This

Manage household heating power consumption systematically to lower winter electricity bills through duty-cycle reduction.

Prevent localized oxygen depletion and indoor air quality degradation caused by unmanaged, continuous heat convector operation.

Gain practical undergraduate-level experience in designing discrete analog timing and power-switching relay control systems.

Real-World Application

Household heating management to reduce electricity bills and prevent respiratory issues or oxygen depletion caused by continuous room heater operation during winters.

Skills You'll Learn

AC-to-DC power conversion

linear voltage regulation

binary counter timer configuration

transistor relay driving

electromechanical relay interfacing

Safety Precautions

Exercise extreme caution when working with mains voltages connected to the relay contacts and heating elements to prevent electric shock or fire hazards.

Technology Tags

RELAYS

TIMERS

CD4060

POWER SUPPLY

ENERGY SAVING

HOME AUTOMATION

ANALOG CIRCUITS

Frequently Asked Questions

Why is a step-down transformer used instead of connecting directly to wall power for the logic?

The step-down transformer (X1) drops high AC mains voltage down to a safe level that can be rectified and regulated by the 7812 IC to power the low-voltage digital timing components.

What is the role of the CD4060B IC in this circuit?

The CD4060B combines an oscillator and a multi-stage binary counter to establish the precise time intervals required to periodically switch the heating convectors on and off.

Can this circuit handle the high current drawn by heating elements directly?

No, the delicate logic and transistor stages drive 12V single-changeover relays (RL1, RL2), which physically isolate the low-voltage control side from the high-power mains heating elements.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

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