GE IC660TBA026M Digital input card
Brand ABB Color Standard Application Industrial height 125mm rated current 220mA
Protection Level IP45 Suitable for motor power 144KW Application Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part Number IC660TBA026
Applicable pipe 2 Whether imported is weighing 5.18 kg can be sold nationwide
GE IC660TBA026M Digital input card
In order to reduce the voltage to 5V, we will use, it is a linear voltage regulator, can accept up to 35V voltage, need at least 7.5V input power supply to provide a stable 5V power supply, excess voltage will be dissipated in the form of heat, so if the input voltage LM7805 voltage regulator IC is greater than 12V, then consider adding a radiator, So it won’t get damaged. The LCD is powered by the 7805’s 5V power supply, connected to the Arduino, and operates in 4-bit mode. We also added a 10kΩ wiper potentiometer to control the contrast of the LCD display.
IC660TBA026M Constant load Current circuit:
The second is the constant current load circuit based on PWM so that the load current flowing through the resistor can be controlled by us and kept constant, so that when the battery voltage drops, there will be no error due to current changes with time. It includes the LM741 operational amplifier IC and the IRF540N N-channel MOSFET, which controls the current flowing through the MOSFET by turning the MOSFET on and off according to the voltage level we set.
The IC660TBA026M op amp operates in comparator mode, so in this mode. Whenever the voltage of the in-phase pin of the op amp is higher than the voltage of the anti-phase pin, the output of the op amp will be high. Similarly, if the voltage of the opamp’s inverting pin is higher than that of the in-phase pin, the opamp’s output will be pulled down. In a given circuit, the in-phase pin voltage level is controlled by the Arduino NANO’s D9 PWM pin, which switches at a 500Hz frequency and then delivers a nearly constant DC signal on the in-phase pin through a low-pass RC circuit filter with a resistance of 33k and a capacitor with a capacitance of 0.47uF. The inverting pin is connected to the load resistor, which reads the voltage across the resistor and common GND. The output pin of the op amp is connected to the gate terminal of the MOSFET to turn it on or off. The op amp switches the connected MOSFEts so that the current flowing through the resistance is proportional to the PWM value set on the NANO D9 pin, so that the voltage at both ends is equal. For this project, I limited the maximum current of the circuit to 1.3A, which is reasonable since my battery’s maximum rated current is a 10A controller
GE IC660TBA026M Digital input card
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