The more expensive pcb board manufacturing products are, the better they look! There are many non high-frequency PCB circuit boards! The more layers, the cheaper the better! Circuit board manufacturer: 1. The power circuit PCB engineer adjusts the input printed circuit board information to a DC DC signal based on the circuit principle, without involving the transmission of DC signals. 2. The input circuit PCB engineer designs the circuit according to the circuit diagram. When necessary, power PCB designers are required to have multiple packaging options, and there are also strict requirements for component calibration. In general, the arrangement order of each component is adjusted based on the circuit schematic diagram. Therefore, there are many possibilities for power PCB design engineers to place no devices on the PCB, which can affect the normal operation of the devices. At the same time, the following points need to be noted.
When wiring the power supply, it is necessary to place the power supply in a position with impedance matching to achieve the best protection effect;
The wiring of the power supply should be as short and parallel as possible to reduce reflection and radiation emissions from the power supply;
Considering the wiring of the power supply and ground wire in the early stage, increase the internal resistance of the power supply in order to maintain a certain inductance of the distributed capacitance;

Reasonably allocate residual voltage and AC voltage, ensuring absolute stability of AC working voltage under effective residual voltage distribution control;
Adopting reasonable reactive power compensation of the main circuit capacitor to prevent resonance and improve the high-frequency power stability of the power supply;
The thyristor composed of transistors is a variety of principles composed of three parts, all of which are current type rectifier devices. The rectifier operates in a direct current state, while the crystal oscillator is the terminal voltage directly leading out of the bus. The magnitude of this voltage is directly proportional to the current. When applied to the gate junction of the thyristor tube T1, the forward resistance value measured at the triggering end is infinite relative to the sum of the reverse resistance values of the transistor's collector junction, At this point, the forward resistance is basically zero. When the triggering voltage of T1 and T2 is higher than the voltage Ugs of the base junction of T1, the current flowing through T1 is infinite, and the reverse resistance value at this time is called drain source breakdown dVV. When the triggering voltage of VT1 is higher than the voltage Ugs of the base junction of T1, the current flowing through T2 is zero. When the triggering voltage of VT1 shutdown exceeds the value of the voltage Ugs of the base junction of T1, the current flowing through T2 is zero.
When VT1 opens the voltage Ud1 of the collector junction with a voltage drop exceeding T2, the current flowing through T1 is zero.
Short circuit current of general devices: the maximum current value when the normal working current is 086V. The maximum current when VT1 is turned on. The maximum current when VT1 is short circuited. The maximum current when VT1 is turned on. Maximum current when VT1 is turned off. The ordinary power switch has a simple form, and can be operated externally from the device by simply operating the standard DTON port output interface through the DB interface. When an exception occurs, ESD protection will occur and the output will be blocked. This not only allows the CU to choose whether it can protect the load at the same time, but also does not require any anti reverse operation at the power input end.