Chat
Welcome to Flux
Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More
Ready.
Reviews
Inspect
Annual Jade Scramble Suit
Controls
Properties
Availability & Pricing
| Distributor | Qty 1 | |
|---|---|---|
Assets
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
flux2002
copilot
- Voltage Comparator: LM311 or similar.
- Timer IC for Blinking LED: 555 Timer IC in Astable Mode for 2 Hz blinking frequency.
- Zener Diode: To create a reference voltage, e.g., a zener diode with a breakdown voltage slightly lower than 60V, assuming you have a way to safely drop the voltage for the comparator's level detection.
- LEDs: Red and Green LEDs.
- Resistors: Various values for configuring the 555 Timer, voltage divider, and current limiting for LEDs.
- Transistors: To switch the LEDs on and off based on the comparator output.
Circuit Design Approach:-
Voltage Detection:
- Use a voltage divider to step down the battery voltage to a safe level for the comparator. Choose resistor values carefully considering the input impedance of the comparator.
- Place a zener diode in parallel with the lower resistor of the voltage divider to set a precise reference voltage for the comparator.
-
Comparator Configuration:
- Connect the comparator in a way that its non-inverting input receives the reduced battery voltage and its inverting input gets the reference voltage from the zener diode.
- Adjust the voltage divider and zener diode such that the comparator changes its output state when the battery voltage is slightly above and below 60V.
-
LED Control:
- Red LED Blinking: Use the output of the comparator to control a 555 Timer IC configured in Astable mode for generating a 2 Hz frequency. Connect the output of the 555 Timer to the base of a transistor that controls current flow through the red LED.
- Green LED: Connect another transistor's base to the comparator's output through an inverter configuration so that the green LED is on when the battery voltage is below 60V.
Example Connection for the Comparator and 555 Timer: