Summary of High Current Discrete Half-Bridge Based on IR2104 or IR2101
This article describes a discrete half-bridge driver circuit utilizing the IR2104 gate driver IC and IRFP4368 N-channel MOSFETs. Designed for high-power applications like motor drives and Tesla coils, it supports load supplies from 12 to 60V DC with up to 30A continuous current. The board features logic compatibility with 3.3V systems, screw terminals for power connections, and header connectors for inputs. It also offers flexibility to use the IR2101 IC for dual input signals.
Parts used in the Half-Bridge Driver:
- IR2104 gate driver IC
- IRFP4368 N channel MOSFETs
- IR2101 IC (optional alternative)
- Screw Terminals for Load and Load Supply
- Header Connector for Logic supply and inputs
Rajkumar Sharma http://www.rajkumarsharma.com
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Half-Bridge-Based-on-IR2104-PIC
This is a discrete Half-bridge driver based on IR2104 gate driver IC and low impedance high current N channel IRFP4368 MOSFETS. The IR2104 is a high voltage, high speed power MOSFET driver with independent high and low side referenced output channels. HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. The logic input is compatible with standard COMOS or LSTTL output, down to 3.3V logic. A gate IR2104 driver is a power amplifier that accepts a low-power input from a controller IC and produces a high-current drive input for the gate of a high-power transistor such as a power MOSFET. In essence, a gate driver consists of a level shifter in combination with an amplifier.
This drive has many application, ranging from DC-DC power supply for high power density and efficiency, This project simplifies the design of control systems for a wide range of motor applications such as home appliances, industrial drives, DC brushed motors , Brushless motors, fans, Tesla Coil driver, Induction coil driver, LED driver, Halogen Lamp driver.
Note: This board has provision to use IR2101 IC for dual signal Low/High input. For Continues 30Amps load PCB track thickness 70 microns.
Features
Load Supply 12 to 60V DC
Load Current 30Amps (Peak 50Amps)
Logic Supply 12 To 15V DC
Input Signals 3V to 15V
IR2104 Single PWM input or IR2101 Dual Input
Compact Design
Required Single PWM input and Shutdown
Screw Terminals for Load and Load Supply
Header Connector for Logic supply and inputs
For More Details: High Current Discrete Half-Bridge Based on IR2104 or IR2101
- What is the primary function of the IR2104 in this project?
The IR2104 acts as a high voltage, high speed power MOSFET driver that accepts low-power input from a controller and produces high-current drive for the transistor gate. - Can this driver be used with 3.3V logic signals?
Yes, the logic input is compatible with standard COMOS or LSTTL output down to 3.3V logic. - What is the maximum peak load current supported by this board?
The board supports a peak load current of 50 Amps. - How can I modify the board for dual signal Low/High input?
You can use the IR2101 IC instead of the IR2104, as the board has provision for this component. - What are the required specifications for PCB tracks if running a continuous 30Amps load?
The PCB track thickness must be 70 microns for a continuous 30Amps load. - Does this project require multiple PWM inputs to operate?
No, it requires a single PWM input and Shutdown signal. - What types of motors can this driver control?
This driver simplifies control for DC brushed motors, Brushless motors, fans, and various industrial drives.
