CN208158448U

CN208158448U - D.C. regulated power supply detection system

Info

Publication number: CN208158448U
Application number: CN201820421896.4U
Authority: CN
Inventors: 徐志望
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2018-03-27
Filing date: 2018-03-27
Publication date: 2018-11-27
Anticipated expiration: 2028-03-27

Abstract

The utility model discloses a DC stabilized power supply detection system, comprising an AC power supply, a transformer, a rectifier bridge, a voltage stabilized module, a D/A converter, a central controller and a display; the D/A converter, the display and the central controller connected and controlled by it; the D/A converter, the rectifier bridge and the voltage stabilizing module are electrically connected, and the rectifier bridge, the AC power supply and the transformer are electrically connected; the utility model has a simple structure, little interference and relatively high precision. DC regulated power supply detection system.

Description

D.C. regulated power supply detection system

Technical field

The utility model relates to power detecting fields, more specifically, it is related to D.C. regulated power supply detection system.

Background technique

With the development of the industries such as computer, communication, industrial automation, electronic apparatus, power supply --- electronic circuit is moved Power source is also grown rapidly.It is the basis of economic development and the basic product of electronics industry.Traditional D.C. regulated power supply function Energy is simple, difficult to control, reliability is low, interference is big, precision is low and volume is big.Conventional DC regulated power supply various types, and deposit In following two problem：

1. output voltage is adjusted by coarse adjustment (band switch) and fine tuning (potentiometer).2. voltage regulation way is to use Serial voltage regulation circuit carries out current limliting to overload or the type that shuts off is protected, and circuit constitutes complexity, and the precision of voltage regulation is not also high.

Summary of the invention

The utility model overcomes the deficiencies in the prior art, and it is simple to provide a kind of structure, interferes that small, precision is relatively high D.C. regulated power supply detection system.

The technical solution of the utility model is as follows：

D.C. regulated power supply detection system, including AC power source, transformer, rectifier bridge, Voltage stabilizing module, D/A converter, in Entreat controller and display；The D/A converter and display are connected with central controller, and are controlled by it；D/A converter, Rectifier bridge and Voltage stabilizing module are electrically connected, and rectifier bridge, AC power source and transformer are electrically connected；The Voltage stabilizing module includes pressure stabilizing Device, resistance, slide rheostat and polar capacitor, the input terminal of the voltage-stablizer connect the anode of the first polar capacitor, the first pole The minus earth of property capacitor, the output end of voltage-stablizer are connect with one end of the anode of the second polar capacitor, resistance, the electricity of voltage-stablizer One end of the other end, slide rheostat that flow output end and resistance connects, the cathode of the second polar capacitor, slide rheostat it is another One end ground connection.

Further, the resistance uses 240 Ω, and the first polar capacitor uses 0.1 μ F, and the second polar capacitor uses 1 μ F.

Further, AC power source both ends connect alternating voltage manograph, and a coil of AC power source and transformer Both ends connection, the both ends of another coil of transformer with rectifier bridge four hold in non-conterminous any two ends connect, this is whole Stream other both ends of bridge are connected on 1000 μ F capacitors, and setting measures the manograph of alternating voltage on the capacitor.

Advantage is the utility model compared with prior art：

1, the utility model modularized design facilitates later maintenance, practical, is easy to be mass produced, and promotes the use of.

2, the utility model structure is simple, and the voltage in decompression due to input is 220V, is far longer than us and wants electricity Pressure amplitude value achievees the purpose that decompression using simple decompression mode, simplifies circuit, realize low cost.

Detailed description of the invention

Fig. 1 is the structural block diagram of the utility model；

Fig. 2 is the adjustable 3 proper voltage regulator circuits structure charts of the utility model；

Fig. 3 is the input power circuit diagram of the utility model.

Specific embodiment

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1 to Figure 3, D.C. regulated power supply detection system, including AC power source, transformer, rectifier bridge, pressure stabilizing mould Block, D/A converter, central controller and display.The D/A converter and display are connected with central controller, and by it Control.Central controller is also connected with press key input device, and the selection voltage to be monitored is adjusted by press key input device The resistance value of current graph and slide rheostat is intuitively embodied by display.Display and central controller use HDMI is attached transmission.D/A converter, rectifier bridge and Voltage stabilizing module are electrically connected, rectifier bridge, AC power source and transformer electricity Property connection.The Voltage stabilizing module includes voltage-stablizer, resistance, slide rheostat and polar capacitor, and the input terminal of the voltage-stablizer connects Connect the anode of the first polar capacitor, the minus earth of the first polar capacitor, the sun of the output end of voltage-stablizer and the second polar capacitor One end connection of pole, resistance, one end connection of the other end, slide rheostat of the current output terminal and resistance of voltage-stablizer, second The cathode of polar capacitor, the other end of slide rheostat are grounded.The resistance uses 240 Ω, and the first polar capacitor uses 0.1 μ F, the second polar capacitor use 1 μ F.This Voltage stabilizing module can be capable of providing when output voltage range is 1.2 volts to 37 volts The electric currents of 1.5 peaces, and be highly susceptible to using, only need two non-essential resistances that output voltages are set, and export 1.2 volts and 37 volts it Between be adjusted, the limitation of the internal short-circuit current that does not vary with temperature.

AC power source both ends connect alternating voltage manograph, and the both ends of a coil of AC power source and transformer connect Connect, the both ends of another coil of transformer with rectifier bridge four end in non-conterminous any two ends connect, the rectifier bridge other Both ends are connected on 1000 μ F capacitors, and setting measures the manograph of alternating voltage on the capacitor.Since the voltage of input is 220V is far longer than wanted voltage magnitude, it is necessary to voltage be reduced, this setting construction is simple and can reach effect, and two are being depressured Voltage afterwards is still alternating voltage, is DC voltage alternating current repoussage, by utilizing rectifier bridge, and makes inside rectifier bridge The effect is achieved that with powerful diode.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art Art personnel can also make several improvements and modifications without departing from the concept of the premise utility, these improvements and modifications Also it should be regarded as in scope of protection of the utility model.

Claims

1. D.C. regulated power supply detection system, it is characterised in that：Including AC power source, transformer, rectifier bridge, Voltage stabilizing module, D/A Converter, central controller and display；The D/A converter and display are connected with central controller, and are controlled by it；D/ A converter, rectifier bridge and Voltage stabilizing module are electrically connected, and rectifier bridge, AC power source and transformer are electrically connected；The Voltage stabilizing module Including voltage-stablizer, resistance, slide rheostat and polar capacitor, the input terminal of the voltage-stablizer connects the sun of the first polar capacitor Pole, the minus earth of the first polar capacitor, the output end of voltage-stablizer are connect with one end of the anode of the second polar capacitor, resistance, One end connection of the other end, slide rheostat of the current output terminal and resistance of voltage-stablizer, the cathode of the second polar capacitor, sliding Rheostatic other end ground connection.

2. D.C. regulated power supply detection system according to claim 1, it is characterised in that：The resistance uses 240 Ω, the One polar capacitor uses 0.1 μ F, and the second polar capacitor uses 1 μ F.

3. D.C. regulated power supply detection system according to claim 1, it is characterised in that：The connection exchange of AC power source both ends Voltage manograph, and a coil of AC power source and transformer both ends connection, the both ends of another coil of transformer with Non-conterminous any two ends connection in rectifier bridge four ends, other both ends of the rectifier bridge are connected on 1000 μ F capacitors, and the electricity The manograph of setting measurement alternating voltage in appearance.