Stabilizator and power supply with shunt control

Abstract

A voltage - stabilizer with distributary control is prepared as utilizing energized end as distributary control interface, providing output voltage and output current to voltage - stabilizer by series connected electric crystal, detecting output current and outputting current detection signal as well as generating control signal for controlling series - connected electric crystal and voltage - stabilizer by feedback control circuit, coupling distributary control circuit to energized end and feedback circuit for generating bus bar signal and for generating reference signal according reference voltage and bus bar signal as well as current detection signal.

Description

technical field [0001] The invention relates to a power supply, in particular to a voltage stabilizer and a power supply with shunt control. Background technique [0002] Voltage regulators are commonly used in power management systems for PC motherboards, notebook computers, mobile phones, and other products. Power management systems use voltage regulators as local power supplies, which require a noise-free output voltage and fast transient response. A voltage regulator allows the power management system to provide an additional voltage level that is less than the main supply voltage. For example, the 5V power supply system of many personal computer motherboards uses a voltage regulator to provide a noise-free 3.3V voltage to a local chip (ie chip, hereinafter referred to as chip) group. [0003] Although voltage regulators cannot convert power efficiently, they are inexpensive, small, and produce little frequency interference. In particular, a voltage regulator can prov...

AI Technical Summary

Problems solved by technology

[0006] One of the first disadvantages of conventional regulators is the high operating temperature, especially when the input voltage is high

The second disadvantage is that the output current I 0 with the voltage drop across the series transistor 10 V D Generate power loss P D

The package determines the thermal resistance and limits its thermal radiation, while lower thermal resistance packages lead to high cost

[0007] This shows that the above-mentioned existing voltage stabilizer obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the problems existing in voltage regulators, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and general products do not have a suitable structure to solve the above problems, which is obvious. It is a problem that relevant industry players are eager to solve

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