mm32 main control

A tantalum capacitor (C16) and a ceramic capacitor (C7) are connected in parallel at the output of the AMS1117 to filter out low- and high-frequency interference. The final output 5V regulated
12V boost module uses the MC34063 chip, an integrated DC-DC chip with a built-in oscillator, driver, and high-current output switch, offering high efficiency and making it suitable for our boost section. Consulting its datasheet, we found its input voltage to be 2.5–40V, output voltage to be 1.25–40V, maximum output current to be 1.5A, operating frequency range to be 100Hz–100kHz, and operating temperature to be 0℃–70℃, all meeting our requirements. Furthermore, its low price and easy availability make it ideal for our driver board.
The driver uses an H-bridge composed of two HIP4082IBZT chips to control the two motors. The circuit diagram can be found in the chip datasheet. The H-bridge principle is relatively simple and is typically used to drive loads with high current, such as the motors in this example.
The PWM buffer module can prevent crosstalk when digital or analog signals are transmitted. Here, the SN74HC125 chip is used as the isolation chip.