Operational amplifier

An operational amplifier is a DC-coupled high-gain electronic voltage amplifier with a differential input and, usually, a single-ended output. In this configuration, an op-amp produces an output potential that is typically hundreds of thousands of times larger than the potential difference between its input terminals.

Reference Wikipedia

Comments

Voltage booster from 1.5 to 12 volt

Lighting up 12 volt LED strip with 1.5 volt battery This is a simple voltage booster circuit. It can increase the voltage of a power source by changing the constant low voltage signal into a series of rapid pulses at a higher voltage. You most commonly see this kind of circuit used to power LEDs with a “dead” battery, but there are many more potential applications for a circuit like this. Any NPN transistor like BC547 1K Resistor 12 Volt LED strip Enamel coated Copper wire preferable SW32 Ferite Ring You can source Ferite ring from dead CFL Bulb Please check out below demo Background: How Does a it Work? This circuit is a self-oscillating voltage booster. It takes a steady low voltage signal and converts it into a series of high frequency pulses at a higher voltage. Here is how a basic it works, step by step: 1. Initially the transistor is off. 2. A small amount of electricity goes through the resistor and the first coil to ...

Ceramic Capacitors

Pin Configuration The Ceramic Capacitors has no polarity. Meaning they can be connected in any direction. They are breadboard friendly and can be easily used on a perf board also. The symbol for ceramic capacitor is just two plain lines as shown above since they do not have any polarity. Note: There are many types of capacitors ; however ceramic capacitors are the most widely used ones and this document is applicable only for the same. Ceramic Capacitor Features Capacitor Type - Ceramic Has a high range of capacitance value starting from 10pF to 3.3uF Has a high range of voltage value starting from 16V to 450V Can withstand a maximum of 105°C temperature Other Types of Capacitors Ceramic Capacitor, Box Capacitor, Variable Capacitor, Mylar capacitors. Identifying Ceramic Capacitors The value of a ceramic capacitance will not be directly mentioned on the capacitor. There will always be a three digit number followe...

Mylar Capacitors

Mylar Capacitors a.k.a polyester capacitors ( PET ) are special type of capacitors with some unique features compared with ceramic and electrolytic capacitor. They can withstand high voltages in a relatively small package and provides high resistance against moisture. Pin Configuration The Mylar Capacitors has no polarity similar to the ceramic capacitors . Meaning they can be connected in any direction. They are breadboard friendly and can be easily used on a perf board also. The symbol for mylar capacitor is just two plain lines as shown above since they do not have any polarity. Note: There are many types of capacitors; the Mylar capacitor is a special type of capacitor with unique properties Mylar capacitor Features Capacitance Range: 0.001uF to 5.6uF Voltage Range: 50V to 630V Tolerance: ±10% Dielectric constant: 3.2 at 1MHz Dissipation factor: 0.5 at 1kHz Capacitance drift: 1.5 Operating Tempe...

Hekatronics

Search This Blog