Very often we see that output coming from a microcontroller, oscillator, comparator, or PWM stage is just not strong enough for driving a power MOSFET directly, it gives signal, yes, but gate does not respond properly unless some decent current reaches there. A MOSFET gate behaves like a small capacitor, so now unless that gate […]
Driver
A4988 Motor Driver Circuit Diagram with IC 555
In this article we now talk about a very simple but very useful stepper motor controller that uses one A4988 driver module and one 555 astable pulse generator. Overview Of The Circuit So we first see the main building blocks. We have one A4988 module that drives any small 2 phase stepper motor. We also […]
IC IR2111 H-Bridge MOSFET, IGBT Driver IC: Full Datasheet, Circuit Diagram
In this article I will talk about this IC IR2111 which people use many times in power electronics field. We can see that this IC is made in such a way that it can handle high voltage and also it can work with very high switching speed and it is mainly meant for working like […]
Isolated High Side Gate Driver Opto-Coupler HCPL3120: No need of Bootstrapping Capacitor/Diode
In this article I will be talking about this device that we call HCPL3120 or also J312, and we see that it is an isolated gate drive opto coupler which we can use for driving H-bridge MOSFET and IGBT gates safely from the low voltage logic side to the high voltage power side. It has […]
How Load Conducts in Half-Bridge Driver Circuits like IR2184 or IR2110
Many folks, especially beginners, they get fully confused when they try to use a half-bridge driver circuits using ICs like IR2184 or IR2110. They look at the datasheet diagram and start thinking, “Bro, how the load will conduct? The MOSFETs are switching one by one so how the current will pass through the load? Looks […]
IC IR2184, IR21844 Half-Bridge Driver Circuit Diagram, Datasheet, Working
In this article we are going to learn about one very useful IC called IR2184 or IR21844. This one is a smart half-bridge gate driver IC which we can use for driving both high-side and low-side MOSFETs or IGBTs, mainly when we are making full bridge inverters, or DC motor controllers, or even induction heater […]