A computer internal module voltage processing circuit

Abstract

The invention discloses a computer internal module voltage processing circuit. The circuit comprises a resistor R1, a resistor R12, a capacitor C1, a triode Q1, a inductor L, a diode D1 and a triode Q2. One end of the resistor R12 is connected with the inductor L, a power VCC and a grounding capacitor C3 respectively. The other end of the resistor R12 is connected with the grounding capacitor C1, the emitting electrode of a triode Q5, a resistor R5, a resistor R6, the collecting electrode of a triode Q3, the emitting electrode of the triode Q2 and a resistor R3. The other end of the resistor R3 is connected with the base of the triode Q2 and the collecting electrode of the triode Q1. The emitting electrode of the triode Q1 is connected with the resistor R1 and grounded. The computer internal module voltage processing circuit firstly transforms the power VCC into square signals, controls a boost circuit switch to boost the voltage, and finally outputs dynamically stable voltage. Transformers are not used in the computer internal module voltage processing circuit, and therefore the problem of strong electromagnetic interference brought by the voltage boosting circuit which is based on transformers is solved.

Description

technical field [0001] The invention relates to a computer, in particular to a computer internal module voltage processing circuit. Background technique [0002] The wide application of portable devices such as computers has created a large number of new requirements for power management. Many modules need to use boost circuits. In order to support increasingly complex system power requirements and new functions, major chip design companies have proposed advanced and various Features and sizes of power management solutions are getting smaller and smaller, but the heat dissipation capability of small-size packages is not as good as that of large-size package products, forcing the conversion efficiency of devices to be improved, so switching regulators are replacing linear regulators to process voltage to extend the working time However, since this type of voltage processing circuit uses transformer components, this type of circuit will generate a lot of noise and strong elect...

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