Lm339 Applications

Lm339 applications

LM339 is used in applications where a comparison between two voltage signals is required. In addition with four of those comparators on board the device can compare four pairs of voltage signals at a time which comes in handy in some applications.

What is the main applications of comparator?

A comparator consists of a specialized high-gain differential amplifier. They are commonly used in devices that measure and digitize analog signals, such as analog-to-digital converters (ADCs), as well as relaxation oscillators.

What is LM393 used for?

The LM393 IC is a low-power, single-supply, low-offset voltage, double, differential comparators. Generally, a common comparator IC is a tiny voltmeter by included switches. It is used to calculate the voltages at two dissimilar terminals and contrasts the dissimilarity in voltage quantity.

Where is voltage comparator used?

Since voltage comparators convert a linear input signal into a digital output signal, they are commonly used to connect two dissimilar electrical signals with different supply or reference voltages.

Why optocouplers are often used in medical electronics?

Optocouplers not only protect sensitive circuits but enable an engineer to design a variety of hardware applications. Using an optocoupler saves a great deal of cost on replacing components and makes it convenient to control the connection between two circuits by connecting/disconnecting an optocoupler.

What is LM358 IC?

LM358 IC is a dual operational amplifier integrated circuit with two Op-Amp powered by a common power supply. It consists of two independent compensated operational amplifiers with low power and high gain frequency. LM358 is specially designed to operate from a single supply over a wide range of voltage.

What is the advantage of comparator?

Advantages of Electrical Comparator: Vibrations are reduced due to least weight of mechanical. It consists of less moving parts. By AC supply the friction errors are reduced. For measuring units the indicating instrument can be held at remote locations.

What is comparator example?

This interface is present in java. util package and contains 2 methods compare(Object obj1, Object obj2) and equals(Object element). Using a comparator, we can sort the elements based on data members. For instance, it may be on roll no, name, age, or anything else.

What are the two types of comparators?

Types of Comparators: 1. Mechanical comparators 2. Optical comparators 3. Electrical & Electronic comparators 4.

What can LM358 be used for?

LM358 can be used as transducer amplifier, DC gain block etc. It has large dc voltage gain of 100dB. This IC can be operated on wide range of power supply from 3V to 32V for single power supply or from ±1.5V to ±16V for dual power supply and it also support large output voltage swing.

Why do we use Opamps?

In the most basic circuit, op-amps are used as voltage amplifiers, which can be broadly divided into noninverting and inverting amplifiers. Voltage followers (also simply called buffers) are a type of commonly used noninverting amplifiers. Op-amps are also used as differential amplifiers, integrator circuits, etc.

Is LM393 open-collector?

The LM393 is functionally a comparator by design. It is configured as an open-collector device since its typical use is as a switch.

Is an example of electrical comparator?

Electrical Comparators: An Electrical comparator employs electrical means to get the magnification. In this comparator the movement of the measuring contact plunger is converted into an electrical signal. The electrical signal is recorded by an instrument which can be calibrated in terms of plunger movement.

Is the best used as comparator?

According to truth table from equal condition if both the inputs are equal than it can produce logic 1 output, so the EX-NOR gate is best for the comparator. XNOR gate. Comparators are used in central processing unit s (CPU's) and micro-controllers (MCUs).

Which comparator is used to measure?

Detailed Solution. A comparator is an indirect type of instrument with the help of which an unknown dimension of a workpiece is compared with a working standard (usually slip gauges) and difference in dimension is measured.

What is optocoupler and its application?

Optocouplers can either be used on their own as a switching device, or used with other electronic devices to provide isolation between low and high voltage circuits. You'll typically find these devices being used for: Microprocessor input/output switching. DC and AC power control.

What are the 4 types of optocoupler?

Depending on the use there are mainly four types of optocouplers are available.

• Opto-coupler which use Photo Transistor.
• Opto-coupler which use Photo Darlington Transistor.
• Opto-coupler which use Photo TRIAC.
• Opto-coupler which use Photo SCR.

What is the main advantage of using optocouplers?

Advantages of Optocoupler: Works very fast. Less noise. The optocoupler works well on either AC or DC high-voltage signals. It is also used in a number of sensor applications to sense the presence of physical objects.

Why LM358 is used in IR sensor?

Here operational amplifier (op-amp) of LM 358 is used as a comparator. When the IR receiver does not receive the signal the potential at the inverting input goes higher than that at the non-inverting input of the comparator (LM 358). Thus the output of the comparator goes low and the LED does not glow.

Can LM358 be used as a comparator?

The LM358 is a versatile uses it can be used as comparator to compare different signals, amplifying signals from a variety of transducers or sensors to dc gain blocks or any op-amp function.

15 Lm339 applications Images