I2C is a common serial communication interface, which is available on most processors. The I2C interface is an open-drain structure, so pull-up resistors are needed in the design to drive the high level. As shown below: Rp is the pull-up resistor, and the dashed box contains the internal I2C controller structure of the chip (for … Read more
In the power-off module, it may be required for the register to latch the data before shutdown or to restore the latched data after the power is turned on, which requires a special unit called the Retention Register. The retention register has two sets of registers: the Main Register and the shadow register, where the … Read more
1. Problem: 1. How to maximize available power for fast and efficient battery charging? 2. How to maximize power output while preventing power supply failure? 2. Definition and Understanding of DPM: Dynamic Power Management (DPM) is a power management mechanism that allows dynamic management of power while the system is running. This is in contrast … Read more
Failure phenomenon: A “San’an” brand low-speed electric vehicle experienced a malfunction when the driver mistakenly disconnected the air switch controlling the main power supply while going downhill, causing the brushless DC motor to generate back electromotive force due to overspeed that could not be absorbed by the battery, resulting in damage to the controller due … Read more
When I mention MOSFETs, your mind might be a bit confused. [Paid] STM32 Embedded Material Package Most textbooks will tell you a long paragraph: MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor, which is an insulated gate field-effect transistor, made using silicon wafers and diffusion processes……. There are both N-channel and P-channel types. Moreover, it has two … Read more