LED Blinker with HT-2014M
The LED flasher circuit is designed to provide a visual indication through intermittent illumination of an LED. It utilizes the HT-2014 series of integrated circuits, specifically the HT-2014L and HT-2014M models, to achieve different flashing rates.
The circuit typically consists of the following components: a power supply, an LED, a resistor, a capacitor, and the HT-2014 integrated circuit. The power supply can be a standard DC source, such as a battery, providing the necessary voltage for the circuit operation.
In the HT-2014L configuration, the circuit is designed to produce a flash rate of approximately one flash per second. This is achieved by setting the timing components, namely the resistor and capacitor, to establish a time constant that dictates the on-off cycle of the LED. The HT-2014L operates by charging the capacitor through the resistor until a threshold voltage is reached, at which point the output transitions, turning the LED on. The capacitor then discharges, and the cycle repeats.
For the HT-2014M variant, the circuit is configured to double the flashing rate to approximately two flashes per second. This is accomplished by altering the values of the timing components or by using a different timing configuration within the integrated circuit, which reduces the time constant and thus increases the frequency of the flashing.
The LED is connected in series with a current-limiting resistor to prevent excessive current from flowing through it, which could cause damage. The choice of resistor value is critical to ensure that the LED operates within its specified current range, thereby providing optimal brightness without compromising longevity.
Overall, the simplicity of the LED flasher circuit makes it an excellent project for beginners in electronics, while also serving practical applications in visual signaling and decorative lighting.A very simple LED flasher circuit. With HT-2014L the circuit produces 1 flash per second and the HT-2014M produces 2 flashes per second. 🔗 External reference
Related Circuits
This circuit is a stable frequency counter with an accuracy of 5 significant digits. It operates within a frequency range of 0 to 30 MHz and has an input sensitivity greater than 100 mV. The probe connects to the...
This circuit provides a visual 9-second delay using 10 LEDs before closing a 12-volt relay. When the switch is closed, the 4017 decade counter will reset to zero, illuminating the LED connected to pin 3. The output at pin...
This design outlines a sensor circuit that utilizes an LED as a light sensor. The operational control and amplification of the output are managed by a 1458 integrated circuit (IC), which functions as an operational amplifier (op-amp). The circuit...
7-Segment Common LED UV Exposure Box Circuit Diagram. Features: Utilizes Stan Ocker's circuit design, employing a PIC16F84 microcontroller to count and display the time. The 7-Segment Common LED UV Exposure Box Circuit is designed for applications requiring precise timing and...
The goal is to create a small light that is activated by motion and stays illuminated for 20 seconds before turning off. For example, when the light is picked up, it illuminates, and when placed back down, it remains...
The integrated circuit input side contains an oscillating circuit, where the oscillation frequency is determined by the external components L1, C1, and the sensor's equivalent capacitance. The equivalent capacitance increases as the sensor is immersed in liquid. The oscillating...