CN206563937U - One kind calculates internal power supply modular circuit - Google Patents

Abstract

The utility model discloses a power module circuit in a computer, which comprises a triode VT1, a resistor R1, a capacitor C1, a diode D1, a capacitor C2 and a triode VT3. One end of the resistor R1 is respectively connected to the emitter of the triode VT1, the capacitor C1, the capacitor C3 and the The power supply VCC, the other end of the capacitor C3 are respectively connected to the other end of the resistor R1, the negative pole of the grounding diode D1 and the base of the triode VT2, the collector of the triode VT2 is connected to the base of the triode VT1, and the collector of the triode VT1 is respectively connected to the other end of the capacitor C1, the output terminal Vo, the resistor R2 and the collector of the transistor VT3, and the other end of the resistor R2 are respectively connected to the grounding resistor R3 and the base of the transistor VT3. The power supply module circuit in the computer of the utility model effectively monitors and protects the output terminal Vo to keep the voltage of the output terminal Vo stable. The circuit structure is very simple, the cost is low, the volume is small, and the application range is wide.

Description

A power module circuit in a computer

technical field

The utility model relates to a power module, in particular to a power module circuit in a computer.

Background technique

A computer, commonly known as a computer, is an electronic computing machine used for high-speed calculations. It can perform numerical calculations, logical calculations, and has storage and memory functions. It is a modern intelligent electronic device that can run according to the program and process massive data automatically and at high speed. Composed of hardware systems and software systems, computers without any software installed are called bare metal. It can be divided into five categories: supercomputers, industrial control computers, network computers, personal computers, and embedded computers. More advanced computers include biological computers, photonic computers, and quantum computers.

The application environment of modern integrated circuits is becoming more and more complex. As an electronic device, a computer has a lot of integrated circuits inside, and a lot of power module circuits are used inside to supply power for various integrated chips. There are many types of these power modules, such as Voltage protection module, current protection module, voltage stabilization module, etc. These power supply modules play an important role in the safe operation of the computer.

Utility model content

The purpose of this utility model is to provide a voltage-stabilizing power supply module circuit used in a computer to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A power supply module circuit in a computer, comprising a triode VT1, a resistor R1, a capacitor C1, a diode D1, a capacitor C2 and a triode VT3, one end of the resistor R1 is respectively connected to the emitter of the triode VT1, a capacitor C1, a capacitor C3 and a power supply VCC, and a capacitor C3 The other end is respectively connected to the other end of the resistor R1, the negative pole of the grounding diode D1 and the base of the triode VT2, the collector of the triode VT2 is connected to the base of the triode VT1, and the collector of the triode VT1 is respectively connected to the other end of the capacitor C1, the output terminal Vo, the resistor R2 and the set of the triode VT3 The other end of the resistor R2 is connected to the grounding resistor R3 and the base of the triode VT3, the emitter of the triode VT3 is respectively connected to the capacitor C2, the resistor R4 and the emitter of the triode VT2, and the other end of the capacitor C2 is connected to the other end of the resistor R4 and grounded.

As a further solution of the present invention: the diode D1 is a Zener diode.

As a further solution of the utility model: the voltage of the power supply VCC is 24V.

Compared with the prior art, the beneficial effect of the utility model is that the power supply module circuit in the computer of the utility model effectively monitors and protects the output terminal Vo, so that the voltage of the output terminal Vo remains stable, the circuit structure is very simple, the cost is low, and the volume is small ,Wide range of applications.

Description of drawings

Fig. 1 is a circuit diagram of a power supply module circuit in a computer.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, in the utility model embodiment, a kind of power supply module circuit in the computer comprises triode VT1, resistor R1, electric capacity C1, diode D1, electric capacity C2 and triode VT3, and one end of said resistance R1 is respectively connected with triode VT1 emitter , capacitor C1, capacitor C3 and power supply VCC, the other end of capacitor C3 is respectively connected to the other end of resistor R1, the negative pole of grounding diode D1 and the base of triode VT2, the collector of triode VT2 is connected to the base of triode VT1, and the collector of triode VT1 is respectively connected to the other end of capacitor C1 One end, the output terminal Vo, resistor R2 and the collector of the triode VT3, the other end of the resistor R2 is respectively connected to the grounding resistor R3 and the base of the triode VT3, the emitter of the triode VT3 is respectively connected to the capacitor C2, the resistor R4 and the emitter of the triode VT2, and the other end of the capacitor C2 Connect the other end of the resistor R4 to ground; the diode D1 is a Zener diode.

Please refer to Figure 1 to build the circuit according to the parameters shown in the figure. The VCC voltage of the power supply is 24V. Under normal circumstances, the voltage of the output terminal Vo is 12V. If the output voltage of the output terminal Vo suddenly increases for some reason, the base potential of the triode VT3 Also increases, so that the Vbe of VT3 increases, the Ib of VT3 increases, the emitter potential of VT3 increases, the Vbe of VT2 decreases, the base current of VT2 decreases, the collector current of VT2 also decreases, and the collector current of VT1 The electrode current also decreases, and the tube voltage drop Vce of VT1 increases, thereby maintaining the voltage at the output terminal Vo unchanged; if the output voltage at the output terminal Vo suddenly decreases, the situation is similar to the above, and will not be described here; resistor R1, capacitor C3 and diode D1 form an RCD clamping circuit, which can enhance the stability of the circuit when the VCC voltage fluctuation of the power supply is weak. The function of capacitor C2 is to use its charging current to increase the switching speed of transistors VT2 and VT3.

To sum up, the power supply module circuit in the computer of the present invention effectively monitors and protects the output terminal Vo to keep the voltage of the output terminal Vo stable. The circuit structure is very simple, the cost is low, the volume is small, and the application range is wide.

Claims (4)

1. a power module circuit in a computer is characterized in that, when the output voltage of the output terminal Vo increases, the base potential of the triode VT3 also increases, so that the Vbe of the triode VT3 increases, and the Ib of the triode VT3 increases, and the triode VT3 The emitter potential increases, the Vbe of the triode VT2 decreases, the base current of the triode VT2 decreases, the collector current of the triode VT2 also decreases, the collector current of the triode VT1 also decreases, and the tube voltage drop Vce of the triode VT1 increases The voltage at the output terminal Vo remains constant; the circuit includes a triode VT1, a resistor R1, a capacitor C1, a diode D1, a capacitor C2, and a triode VT3, and one end of the resistor R1 is respectively connected to the emitter of the triode VT1, capacitor C1, and capacitor C3 and the power supply VCC, the other end of the capacitor C3 is respectively connected to the other end of the resistor R1, the negative pole of the grounding diode D1 and the base of the triode VT2, the collector of the triode VT2 is connected to the base of the triode VT1, and the collector of the triode VT1 is respectively connected to the other end of the capacitor C1, the output terminal Vo, Resistor R2 and the collector of triode VT3, the other end of resistor R2 is connected to the grounding resistor R3 and the base of triode VT3 respectively, the emitter of triode VT3 is respectively connected to capacitor C2, resistor R4 and the emitter of triode VT2, the other end of capacitor C2 is connected to the other end of resistor R4 and grounded. 2. The power supply module circuit in the computer according to claim 1, wherein the diode D1 is a Zener diode. 3. The power supply module circuit in the computer according to claim 1, wherein the voltage of the power supply VCC is 24V. 4. The power supply module circuit in the computer according to claim 1, wherein the resistor R1, the capacitor C3 and the diode D1 form an RCD clamping circuit.