What is LM339?

LM339 is a voltage comparator IC from LMx39x series and is manufactured by many industries. The devices consist of four independent voltage comparators that are designed to operate from a single power supply.

Is LM339 open collector?

The LM324 has a complementary output while the LM339 is open collector. In the complementary output, current can flow in either direction as required (either source or sink) while the open collector output can only sink current.

How does an LM393 comparator work?

This circuit uses a photoresistor for controlling the circuit of a voltage divider. When this circuit absorbs to bright light, then the output device will be turned off. When the circuit absorbs the darkness then the output device will be turned off. This circuit works on a voltage comparator principle.

Can we use LM393 instead of LM358?

The LM393 IC can be considered as the equivalent comparator version of the most popular LM358 Op-Amp. While any Op-Amp can be made to work as a voltage comparator, the LM393 proves itself to be advantages by providing an open collector output making it suitable to drive loads.

Which type of regulator is considered more efficient?

Which type of regulator is considered more efficient? Explanation: The switching element dissipates negligible power in either on or off state. Therefore, the switching regulator is more efficient than the linear regulators.

Is IC 339 a positive variable voltage regulator?

The IC LM399 has positive and negative pins which are pin-3 and pin12 as shown in the circuit. Simultaneously, the voltage supply from the battery will flow through the potentiometer VR1 to the non- inverting terminals (pin5) of the IC.

What is comparator op amp?

A comparator is an electronic circuit, which compares the two inputs that are applied to it and produces an output. An op-amp consists of two input terminals and hence an op-amp based comparator compares the two inputs that are applied to it and produces the result of comparison as the output.

What is a dual comparator?

Texas Instruments LM2903-Q1 Dual Differential Comparator consists of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Current drain is independent of the supply voltage.

What kind of comparator is the LM393?

The LM393 is a dual differential comparator; this means that it accepts 2 inputs for comparison. It compares these voltage inputs and determines which is the larger value.

What are the voltage inputs on a LM393?

The pinout is shown below: The LM393 has 2 power inputs. These are labeled Vcc and GND. Vcc is where the positive terminal of the voltage supply gets inserted into. This supply voltage can be as high as 36V. GND is where the ground wire of the voltage source gets connected to.

Where is the GND on the LM393 chip?

GND is where the ground wire of the voltage source gets connected to. These 2 terminals complete the power path for the LM393 chip and gives it the power it needs to function.