CN203352446U - DC-DC voltage conversion circuit - Google Patents

DC-DC voltage conversion circuit Download PDF

Info

Publication number
CN203352446U
CN203352446U CN 201320316174 CN201320316174U CN203352446U CN 203352446 U CN203352446 U CN 203352446U CN 201320316174 CN201320316174 CN 201320316174 CN 201320316174 U CN201320316174 U CN 201320316174U CN 203352446 U CN203352446 U CN 203352446U
Authority
CN
China
Prior art keywords
diode
capacitor
exploitation
glass packaging
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320316174
Other languages
Chinese (zh)
Inventor
孔亚广
陈天钧
胡晓飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Dianzi University
Hangzhou Electronic Science and Technology University
Original Assignee
Hangzhou Electronic Science and Technology University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Electronic Science and Technology University filed Critical Hangzhou Electronic Science and Technology University
Priority to CN 201320316174 priority Critical patent/CN203352446U/en
Application granted granted Critical
Publication of CN203352446U publication Critical patent/CN203352446U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a DC-DC voltage conversion circuit. The circuit comprises a recovery diode D602, a glass packaging development diode D603, a glass packaging development diode D604, a glass packaging development diode D605, a glass packaging development diode D606, a transformer B601, a capacitor C10, a capacitor C11, a capacitor C12, an electrolytic capacitor C603, an electrolytic capacitor C605, a resistor R12, a 78L05 three-terminal stabilized voltage power supply regulator T601 and an IRFU110 field effect transistor M601. The circuit is low in power consumption, high in precision, and suitable for systems requiring high precision.

Description

A kind of DC-DC DC voltage converting circuit
Technical field
The utility model belongs to the Power supply technical field, relates to a kind of DC-DC DC voltage converting circuit that is applied to communication apparatus etc.
Background technology
The DC-DC DC voltage converting circuit is a kind of direct voltage to be converted to the circuit topology of another kind of direct voltage.What the words of general small power DC voltage conversion circuit were used is the Buck(buck) and Boost(boost) pattern.High-powerly just adopt flyback, half-bridge, recommend or the circuit topology of full-bridge.Divide according to structure the difference that isolation and non-isolation are arranged, that namely isolates will be inputted with output and be carried out electrical isolation by transformer, and energy is delivered to output by magnetic energy.But not the isolation by switching tube, directly change exactly.For example a DC-DC DC voltage converting circuit the simplest is exactly onboard charger, on car, the voltage of storage battery is generally DC10-14.5V, the voltage that is 5V by the Buck circuit conversion of a DC-DC, can charge the phone, and if can be converted to about 19V and can charge to notebook computer with the Boost circuit.This DC-DC DC voltage converting circuit circuit used is switching mode, is a Switching Power Supply.Its efficiency is very high, energy-conservation.Generally can reach 90% left and right.So can reach extensive use.If the use linear circuit, conversion efficiency can be very low, loses most energy.At present use seldom.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of DC-DC DC voltage converting circuit.
The utility model is by the following technical solutions:
The DC-DC DC voltage converting circuit, comprise recovery diode D602, glass packaging exploitation diode D603, glass packaging exploitation diode D604, glass packaging exploitation diode D605, glass packaging exploitation diode D606, transformer B601, capacitor C 10, capacitor C 11, capacitor C 12, electrochemical capacitor C603, electrochemical capacitor C605, resistance R 12,78L05 three-terminal voltage-stabilizing feed regulator isolator T601, IRFU110 field effect transistor M601.Recovery diode D602 plus earth, negative electrode connects transformer B601 primary side one end, input direct voltage VCC connects respectively an end of capacitor C 10, the primary side other end of transformer B601, the end of the other end connecting resistance R12 of capacitor C 10, the primary side that the other end of resistance R 12 meets respectively IRFU110 field effect transistor M601 drain electrode, transformer B601 is an end again; IRFU110 field effect transistor M601 drain-source ground connection, grid connects input frequency signal.
Glass packaging exploitation diode D603 anode connects respectively secondary side one end of glass packaging exploitation diode D605 negative electrode, connection transformer B601, and glass packaging exploitation diode D604 anode connects respectively the secondary side other end of glass packaging exploitation diode D606 negative electrode, connection transformer B601; 3 pin of glass packaging exploitation diode D603 negative electrode, glass packaging exploitation diode D604 negative electrode, electrochemical capacitor C603 positive pole, capacitor C 11 1 termination 78L05 three-terminal voltage-stabilizing feed regulator isolator T601; The 2 pin ground connection of glass packaging exploitation diode D605 anode, glass packaging exploitation diode D606 anode, electrochemical capacitor C603 negative pole, capacitor C 11 other ends, 78L05 three-terminal voltage-stabilizing feed regulator isolator T601; 1 pin of 78L05 three-terminal voltage-stabilizing feed regulator isolator T601 connects respectively the positive pole of electrochemical capacitor C605, an end of capacitor C 12, and as DC voltage output end, the other end ground connection of the negative pole of electrochemical capacitor C605, capacitor C 12.
The utility model beneficial effect: this circuit power consumption is low, and precision is high, is applicable in system that claimed accuracy is high.
The accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises recovery diode D602, glass packaging exploitation diode D603, glass packaging exploitation diode D604, glass packaging exploitation diode D605, glass packaging exploitation diode D606, transformer B601, capacitor C 10, capacitor C 11, capacitor C 12, electrochemical capacitor C603, electrochemical capacitor C605, resistance R 12,78L05 three-terminal voltage-stabilizing feed regulator isolator T601, IRFU110 field effect transistor M601, recovery diode D602 is along conducting direction one end ground connection, one termination transformer B601 primary side, input direct voltage VCC receives the primary side of transformer B601, also receive the primary side of transformer B601 after the whole VCC in parallel of capacitor C 10 connecting resistance R12, IRFU110 field effect transistor M601 drain electrode connecting resistance R12 is by the side of transformer B601, source ground, grid connects input frequency signal, glass packaging exploitation diode D603, glass packaging exploitation diode D604, glass packaging exploitation diode D605 and glass packaging exploitation diode D606 connect to form the secondary side of bridge rectifier left side connection transformer B601, the right be connected in parallel capacitor C 12 and electrochemical capacitor C603, afterwards positive ends is connected to the Vin mouth of 78L05 three-terminal voltage-stabilizing feed regulator isolator T601, the GND mouth that the negative polarity end is connected to 78L05 three-terminal voltage-stabilizing feed regulator isolator T601, finally will after capacitor C 12 and electrochemical capacitor C605 parallel connection, form output filter circuit, the Vout mouth that positive ends is connected to 78L05 three-terminal voltage-stabilizing feed regulator isolator T601, the negative polarity end connects the GND mouth of 78L05 three-terminal voltage-stabilizing feed regulator isolator T601.Recovery diode D602 is the port for disconnecting transformer B601 mono-side, capacitor C 10 and resistance R 12 play filtering and the metering function to the input direct-current signal, IRFU110 field effect transistor M601 regenerates by direct current signal the AC signal needed after receiving frequency signal, by transformer B601 with the ratio of needs by the AC signal convergent-divergent, played the effect of electrical isolation simultaneously, the voltage signal of the secondary side of transformer B601 output afterwards is through developing diode D603 by glass packaging, glass packaging exploitation diode D604, after connecting to form bridge rectifier, glass packaging exploitation diode D605 and glass packaging exploitation diode D606 be rectified into direct current signal, be connected to 78L05 three-terminal voltage-stabilizing feed regulator isolator T601 after the filter circuit that this direct current signal forms by electrochemical capacitor C603 and capacitor C 11 again, afterwards the precision of output higher+the 5V direct current signal by and the filter action of the same before filter circuit formed by electrochemical capacitor C605 and capacitor C 12 after finally the required precision of generation system very high+the 5V d. c. voltage signal.

Claims (1)

1. a DC-DC DC voltage converting circuit, comprise recovery diode D602, glass packaging exploitation diode D603, glass packaging exploitation diode D604, glass packaging exploitation diode D605, glass packaging exploitation diode D606, transformer B601, capacitor C 10, capacitor C 11, capacitor C 12, electrochemical capacitor C603, electrochemical capacitor C605, resistance R 12, 78L05 three-terminal voltage-stabilizing feed regulator isolator T601, IRFU110 field effect transistor M601, it is characterized in that: recovery diode D602 plus earth, negative electrode connects transformer B601 primary side one end, input direct voltage VCC connects respectively an end of capacitor C 10, the primary side other end of transformer B601, the end of the other end connecting resistance R12 of capacitor C 10, the other end of resistance R 12 connects respectively IRFU110 field effect transistor M601 drain electrode, the primary side of transformer B601 is an end again, IRFU110 field effect transistor M601 drain-source ground connection, grid connects input frequency signal,
Glass packaging exploitation diode D603 anode connects respectively secondary side one end of glass packaging exploitation diode D605 negative electrode, connection transformer B601, and glass packaging exploitation diode D604 anode connects respectively the secondary side other end of glass packaging exploitation diode D606 negative electrode, connection transformer B601; 3 pin of glass packaging exploitation diode D603 negative electrode, glass packaging exploitation diode D604 negative electrode, electrochemical capacitor C603 positive pole, capacitor C 11 1 termination 78L05 three-terminal voltage-stabilizing feed regulator isolator T601; The 2 pin ground connection of glass packaging exploitation diode D605 anode, glass packaging exploitation diode D606 anode, electrochemical capacitor C603 negative pole, capacitor C 11 other ends, 78L05 three-terminal voltage-stabilizing feed regulator isolator T601; 1 pin of 78L05 three-terminal voltage-stabilizing feed regulator isolator T601 connects respectively the positive pole of electrochemical capacitor C605, an end of capacitor C 12, and as DC voltage output end, the other end ground connection of the negative pole of electrochemical capacitor C605, capacitor C 12.
CN 201320316174 2013-06-03 2013-06-03 DC-DC voltage conversion circuit Expired - Fee Related CN203352446U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320316174 CN203352446U (en) 2013-06-03 2013-06-03 DC-DC voltage conversion circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320316174 CN203352446U (en) 2013-06-03 2013-06-03 DC-DC voltage conversion circuit

Publications (1)

Publication Number Publication Date
CN203352446U true CN203352446U (en) 2013-12-18

Family

ID=49752293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320316174 Expired - Fee Related CN203352446U (en) 2013-06-03 2013-06-03 DC-DC voltage conversion circuit

Country Status (1)

Country Link
CN (1) CN203352446U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296895A (en) * 2013-06-03 2013-09-11 杭州电子科技大学 DC-DC voltage switching circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296895A (en) * 2013-06-03 2013-09-11 杭州电子科技大学 DC-DC voltage switching circuit

Similar Documents

Publication Publication Date Title
CN203645381U (en) Vehicle charger system of electric vehicle
CN103633839A (en) Improved Z-source boosting DC (direct current)-DC converter
CN208386212U (en) A kind of uninterruptible power supply
CN203883673U (en) Improved Z-source boost DC-DC converter
CN205847086U (en) A kind of switching capacity type high-gain quasi-Z source DC DC changer
CN101807809B (en) Charging circuit for lead acid batteries with high power factors
CN203352446U (en) DC-DC voltage conversion circuit
CN102723883A (en) Capacitor energy-storage type silicon-controlled switch power supply
CN205319941U (en) Double - circuit voltage conversion control chip , double - circuit voltage conversion ware and electronic electric energy meter
CN202178715U (en) AC-DC power conversion chip and power conversion circuit
CN204721218U (en) Boosting and linear-charging share the portable power source transducer of power device
CN103337971A (en) Power module circuit for electric vehicle charger controller
CN110745029B (en) Vehicle-mounted bidirectional charger
CN202019310U (en) 0V adjustable DC regulated power supply circuit based on LM 317 chip
CN103296895A (en) DC-DC voltage switching circuit
CN203522541U (en) Improved H bridge buck-boost DC converter
CN203722473U (en) Embedded single-switch Buck-Boost converter
CN202997953U (en) Capacitor energy-storage type silicon-controlled switch power source
CN206060569U (en) A kind of driving power supply circuit of three-phase VIENNA rectifier
CN106134501B (en) A kind of multichannel output module power supply is lower electric sequential control circuit preferentially
CN205847090U (en) A kind of mixed type quasi-boost switching DC DC changer
CN203827173U (en) Single-tube Boost-Buck-Boost converter
CN204290416U (en) A kind of multiple-energy-source emergency power supply system
CN205355906U (en) General small -size gasoline engine generator charger
CN201733125U (en) Power management system for power comprehensive measurement and control instrument

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131218

Termination date: 20150603