Half-Bridge with Ultra-Precise Current Sense Feedback for Solenoid
A Half-bridge converter is widely used in applications such as DC-DC converters, switch mode power supplies, inverters, motor drivers, resistive loads, and solenoid drivers. This project consists of an IR2104 Half-bridge driver chip, 2 x DPAK MOSFETS, and an INA293 precision current sense amplifier. The IR2104 is a half-bridge, high voltage, high-speed power MOSFET and IGBT driver with dependent high and low side referenced output channels. It drives high and low-side N-channel MOSFETs, INA293 chip measures the load current across the shunt resistor connected to the output.
The project is mainly developed for solenoid applications that need current feedback. The circuit can handle load currents up to 2A and can handle higher currents with the help of forced air. IRFR120 MOSFETs are used, but you can use FDD8876 MOSFETs for higher currents. Shunt Resistor 0.01-ohm used to sense the load current, INA293 has Gain 20V/V.
Inputs and Output
The circuit requires 2 x signals, HI (PWM) and SD (Shutdown). SD/LI= High Output enables, LOW= Disable, both inputs are 3.3V, 5V and 15V logic compatible.
Current Sense Output: 0.2V/A, 2A = 0.4V (400mV)
Features
- Supply Load 24V DC (VDD)
- Supply Gate Driver 12V-15V (VCC)
- Supply Current Sensor Amplifier INA293 (VI) 5V DC
- Current Feedback Output 0.2V/A
- Input Signal Logic Level 3.3V, 5V and 15V.
- Operating Frequency Up to 20Khz
- Two Control Signals PWM and Shutdown
- PCB Dimensions 34.93 x 29.37 mm
Share
A Half-bridge converter is widely used in applications such as DC-DC converters, switch mode power supplies, inverters, motor drivers, resistive loads, and solenoid drivers. This project consists of an IR2104 Half-bridge driver chip, 2 x DPAK MOSFETS, and an INA293 precision current sense amplifier. The IR2104 is a half-bridge, high voltage, high-speed power MOSFET and IGBT driver with dependent high and low side referenced output channels. It drives high and low-side N-channel MOSFETs, INA293 chip measures the load current across the shunt resistor connected to the output.
The project is mainly developed for solenoid applications that need current feedback. The circuit can handle load currents up to 2A and can handle higher currents with the help of forced air. IRFR120 MOSFETs are used, but you can use FDD8876 MOSFETs for higher currents. Shunt Resistor 0.01-ohm used to sense the load current, INA293 has Gain 20V/V.
Inputs and Output
The circuit requires 2 x signals, HI (PWM) and SD (Shutdown). SD/LI= High Output enables, LOW= Disable, both inputs are 3.3V, 5V and 15V logic compatible.
Current Sense Output: 0.2V/A, 2A = 0.4V (400mV)
Features
- Supply Load 24V DC (VDD)
- Supply Gate Driver 12V-15V (VCC)
- Supply Current Sensor Amplifier INA293 (VI) 5V DC
- Current Feedback Output 0.2V/A
- Input Signal Logic Level 3.3V, 5V and 15V.
- Operating Frequency Up to 20Khz
- Two Control Signals PWM and Shutdown
- PCB Dimensions 34.93 x 29.37 mm
Dotfry has partnered with reputed logistic partners for our logistic services, to ensure that all our products reach you in the best of conditions with no damages. We ensure you that we use packaging materials of the best quality, which is sourced from reliable vendors, and ensure thorough testing of package worthiness before using them for shipping and delivery of our products.
Related Products
