CN205945543U - Alternating current -direct current is power supply in coordination - Google Patents

Abstract

The utility model relates to an alternating current -direct current is power supply in coordination, its characterized in that: alternating current input port has been arranged on the casing, the direct -current input interface, voltage display window and multichannel direct current output interface, wherein alternating current input port inputs 220V alternating current all the way, alternating current input port and two way direct -current input interfaces by the switch switch open with full merit mode of switching -off control and single cross stream mode, multichannel direct current output interface is supplied power to the adjustable dc supply interface of four ways through parallelly connected voltage regulating module, it is for solve miniwatt direct current equipment power conversion problem by all kinds of means, exchange through generator 220V, the car storage battery, the lithium cell, the problem that the many means of the coordination of solar energy etc. Power supply solution equipment were supplied power simultaneously, the influence of prerupt to equipment that can prevent to supply power of multiple confession magnetron reason mode, guarantee miniwatt direct current equipment lasts uninterrupted duty, make applied more in a flexible way through the adjustable output of single adapter multichannel, and space is saved, save the electric energy that the alternating current -direct current conversion consumed.

Description

Alternating current-direct current works in coordination with power supply

Technical field

This utility model is related to a kind of alternating current-direct current and works in coordination with power supply, for supplying to small power DC equipment during field work Electricity.

Background technology

At present, conventional power supply mode during small power DC equipment work in the wild is electrical power generators, exist noise big, The problems such as easy break-down, the guarantee powered to small power DC equipment brings bottleneck；Meanwhile, each equipment is individually equipped with adaptation Device, is unfavorable for equipment equipping integrated management more and saves electric energy.

Content of the invention

The purpose of this utility model is to provide a kind of alternating current-direct current to work in coordination with power supply, for solving small power DC by all kinds of means Equipment is powered transfer problem, by the collaborative input electrolysis of electromotor 220V exchange, automobile storage battery, lithium battery, solar energy etc. The problem that certainly the many means of equipment are powered simultaneously, multiple power supply management patterns can prevent to power the unexpected impact interrupted to equipment, Ensure that small power DC equipment continues non-stop run, by the adjustable output of single adapter multichannel make application more flexibly, save The electric energy that space, saving AC-DC conversion consume.

The technical solution of the utility model is realized in：A kind of alternating current-direct current work in coordination with power supply it is characterised in that：Shell Exchange input interface, direct current input interface, voltage display window and multi-channel DC output interface, wherein exchange input are disposed with body Interface inputs a road 220V alternating current, and exchange input interface and two-way direct current input interface open and close control by switching switching Full work(pattern and single cross stream mode, multi-channel DC output interface voltage regulating module in parallel is to four road adjustable DC power supply interfaces Power supply, its specific circuit connects as follows：Exchange input interface is in series with power supply adaptor and diode, and parallel connection in circuit is opened Close and time delay module the circuit connected in series with two-way direct current input interface, two-way direct current input interface series diode, liter respectively Die block and diode；Exchange output circuit passes through the diode direct current output interface circuit in parallel with four tunnels and connects, and direct current is defeated Switch, voltage regulating module, voltage display lamp have been sequentially connected in series on outgoing interface circuit.

Also there is certain ripple in the unidirectional current that described boost module accesses, so access electric capacity C1 being filtered；One Road, through protective resistance R1, the integrated IC1 of voltage stabilizing, high-frequency filter capacitor C2, provides stable operating voltage to controlling integrated IC2.Another Road switchs Q2, isolation rectification diode D1, accumulation of energy boost capacitor C6 to load offer energy through accumulation of energy inductance L1, FREQUENCY CONTROL； Electric capacity C3 gives and controls integrated IC2 pin 8 to filter, and resistance R7, electric capacity C5 give and control integrated IC2 pin 4 to provide frequency of oscillation, electricity Resistance R2, resistance R8 and resistance R9, resistance R6 and crystal triode Q1 give and control integrated IC2 pin 3 to provide current sampling, reach Protection and the conducting of cut-off frequency controlling switch Q2；Electric capacity C4 and resistance R5 switchs IC2 pin 1 to FREQUENCY CONTROL provides loop to mend Repay, rheostat W1 and resistance R10 switchs IC2 pin 2 to FREQUENCY CONTROL and provides Voltage Feedback；FREQUENCY CONTROL switch IC2 pipe Foot 6 output voltage controls the switching tube that FREQUENCY CONTROL switchs Q2 to be turned on and off by resistance R3, resistance R4；Resistance R11 and two Pole pipe D2 provides this circuit working state to indicate.

Good effect of the present utility model be using multichannel input solve the many means of small power DC equipment power backup, Continued power, the problem of benefit electricity, power supply adaptor is typically single channel input, or exchange direct current, in order to strengthen adaptation The adaptability that device field powers, using multichannel input technology, existing 220V exchange has two-way direct current again, and DC voltage is in 5- Between 32V, rectification, transformation, voltage stabilizing are passed through in three tunnel inputs, ultimately form a road and power, increased the adaptability of power supply；Adopt With multiple-working mode can prevent to power the unexpected impact interrupted to equipment, ensure that small power DC equipment continues uninterrupted work Make, by the adjustable output of single adapter multichannel make application more flexibly, save space, save the electric energy that AC-DC conversion consumes. One adapter configures four adjustable DC output interfaces, and every road interface all has voltage regulator module, and adjusting range is 3-24V, Increased the motility of power supply.

Brief description

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is DC voltage booster circuit schematic diagram of the present utility model.

Specific embodiment

Below in conjunction with the accompanying drawings this utility model is further described：As shown in figure 1, a kind of alternating current-direct current works in coordination with power supply electricity Source it is characterised in that：Exchange input interface, direct current input interface, voltage display window and multi-channel DC output are disposed with housing Interface, wherein exchange input interface input a road 220V alternating current, and exchange input interface and two-way direct current input interface are by switching Switching opens and closes and controls full work(pattern and single cross stream mode, and multi-channel DC output interface voltage regulating module in parallel is to four Road adjustable DC power supply interface is powered, and its specific circuit connects as follows：Exchange input interface is in series with power supply adaptor and two Pole pipe, paralleling switch and time delay module the circuit connected in series with two-way direct current input interface in circuit, the input of two-way direct current connects Mouth series diode, boost module and diode respectively；Exchange output circuit passes through the diode direct current output in parallel with four tunnels Interface circuit is connected, and direct current output interface circuit has been sequentially connected in series switch, voltage regulating module, voltage display lamp.

Also there is certain ripple in the unidirectional current that described boost module accesses, so access electric capacity C1 being filtered；One Road, through protective resistance R1, the integrated IC1 of voltage stabilizing, high-frequency filter capacitor C2, provides stable operating voltage to controlling integrated IC2.Another Road switchs Q2, isolation rectification diode D1, accumulation of energy boost capacitor C6 to load offer energy through accumulation of energy inductance L1, FREQUENCY CONTROL； Electric capacity C3 gives and controls integrated IC2 pin 8 to filter, and resistance R7, electric capacity C5 give and control integrated IC2 pin 4 to provide frequency of oscillation, electricity Resistance R2, resistance R8 and resistance R9, resistance R6 and crystal triode Q1 give and control integrated IC2 pin 3 to provide current sampling, reach Protection and the conducting of cut-off frequency controlling switch Q2；Electric capacity C4 and resistance R5 switchs IC2 pin 1 to FREQUENCY CONTROL provides loop to mend Repay, rheostat W1 and resistance R10 switchs IC2 pin 2 to FREQUENCY CONTROL and provides Voltage Feedback；FREQUENCY CONTROL switch IC2 pipe Foot 6 output voltage controls the switching tube that FREQUENCY CONTROL switchs Q2 to be turned on and off by resistance R3, resistance R4；Resistance R11 and two Pole pipe D2 provides this circuit working state to indicate.

When output loading is larger, using full work(pattern, under this pattern, exchange and two-way direct current are simultaneously in work shape State, increases input power；When output loading is less, half work pattern can be adopted, under this pattern, when Alternating Current Power Supply is normal, directly Stream power supply circuits cut-out, can protect automobile storage battery and battery, and when Alternating Current Power Supply interrupts, direct current supply switching moments close, and connect For exchange input power supply, when Alternating Current Power Supply recovers normal, DC power-supply circuit is again switched off.

Increase the circuit such as varistor, electric fuse, Surge Protector in ac input end, play anti-high pressure, Anti-surging, prevent The effect of thunderbolt, protection terminal unit is not damaged by.

Varistor, when external voltage is too high, varistor resistance becomes rapidly very little, the guarantor connecting with varistor Dangerous silk will be blown.Thus protecting other circuit not to be burned；

Overcurrent protection electric fuse, when the electric current in circuit is excessive, electric fuse can fuse to protect the safety of other elements；

Inductance coil reduces electromagnetic interference；

Filter capacitor filters the AC ripple in unidirectional current, so that circuit is worked more reliable；

Temperature probe is used for detecting the temperature conditionss within power supply adaptor, when temperature higher than a certain setting value is, protection Circuit can automatically cut off the output voltage of power supply adaptor, thus protect power supply adaptor and notebook computer part not impaired Evil.

1）Full work(pattern

Three tunnel inputs work simultaneously, and general power is three tunnel input sums, improves and carries load capacity.

2）Single cross stream mode

When 220V alternating current normally inputs, two-way direct current quits work, and protects battery electric quantity；When 220V exchange interrupt or During fault, seamlessly switch to two-way direct current input service it is ensured that terminal unit normally runs, serve the work of uninterrupted power source With.

3）Pattern switching

Full work(pattern or single cross stream mode can be switched at any time by switch, do not affect the normal operation of terminal unit.

As shown in Fig. 2 UC3843A is pulsewidth modulated intergrated circuit, it has, and function is complete, and operating frequency is high, and pin is outer less Enclose element simple the features such as, its voltage regulation factor is up to 0.01%V, the closely regulation of linear stabilized power supply.Work frequency Up to 500kHz, starting current only needs 1mA to rate, so its start-up circuit is very simple.Integrated circuit has fine-tuning shaking Swing device, accurate Duty ratio control, the reference of temperature-compensating, high-gain error amplifier can be carried out.Current sampling comparator and High current totem pillar exports, and is the ideal component of driving power MOSFET.

Other protection features include input and with reference to under-voltage locking, respectively have delayed, by all current limits, programmable output Dead zone time and individual pulse measurement are latched.8 pin dual-in-line Plastic Package；

Control an integrated IC2 simply pulses generation and control integrated package, the pulse of output go the conducting of controlling switch pipe with Cut-off.How high-power itself can not export.This circuit is all used in a lot of Switching Power Supplies, but is Single-end output.It is By controlling the Push And Release of the Pulse Width Control switching tube of integrated IC2 output, the counter electromotive force that inductance produces is added to input So that output voltage raises on voltage.Pass through the adjustment of IC dutycycle, the stable 26.5V output voltage required for obtaining again. The operating frequency of UC3843 is determined by the external RC numerical value of its pin 4.The numerical value of output voltage is then by the partial pressure that its pin 2 is external The resistance of resistance determines, by changing the size of resistance it is possible to obtain required voltage within the specific limits.

In booster circuit, the effect of accumulation of energy inductance L1 is by the energy conversion device of electric energy and magnetic field energy mutually conversion, when After FREQUENCY CONTROL switch Q2 switching tube closure, accumulation of energy inductance L1 converts electrical energy into magnetic field energy and stores, when FREQUENCY CONTROL is opened Close accumulation of energy inductance L1 after Q2 disconnects and the magnetic field energy of storage is converted to electric field energy, and this energy is being folded with input supply voltage Plus after obtain smooth DC voltage after the filtering of diode D1 and electric capacity C6 and be supplied to load, because this voltage is defeated Enter supply voltage and inductance magnetic figured stone can be converted to the superposition of electric energy after formed, so output voltage is higher than input voltage, both The completing of boost process；Diode D1 Schottky diode acts primarily as buffer action, closes in FREQUENCY CONTROL switch Q2 switching tube During conjunction, the cathode voltage of Schottky diode forces down than negative electricity, now the reverse-biased cut-off of diode, makes the thermal energy storage process of this inductance Do not affect the normal power supply to load for the output capacitor；Because FREQUENCY CONTROL switch Q2 switching tube disconnect when, two kinds superposition after Energy is powered to the load by two poles, and now diode forward turns on it is desirable to its forward voltage drop is the smaller the better, makes more as far as possible Energy is supplied to load end.

Claims (2)

1. a kind of alternating current-direct current work in coordination with power supply it is characterised in that：Exchange input interface is disposed with housing, direct current input connects Mouth, voltage display window and multi-channel DC output interface, wherein exchange input interface input a road 220V alternating current, and exchange input connects Mouth and two-way direct current input interface open and close the full work(pattern of control and single cross stream mode, multi-channel DC output by switching switching Interface voltage regulating module in parallel is powered to four road adjustable DC power supply interfaces, and its specific circuit connects as follows：Exchange is defeated Incoming interface is in series with power supply adaptor and diode, in circuit paralleling switch and time delay module and with two-way direct current input interface Circuit connected in series, two-way direct current input interface respectively series diode, boost module and diode；Exchange output circuit passes through two The pole pipe direct current output interface circuit in parallel with four tunnels is connected, and direct current output interface circuit has been sequentially connected in series switch, pressure regulation mould Block, voltage display lamp.

2. a kind of alternating current-direct current according to claim 1 works in coordination with power supply it is characterised in that described boost module accesses Unidirectional current also there is certain ripple, so access electric capacity C1 be filtered；One tunnel through protective resistance R1, the integrated IC1 of voltage stabilizing, High-frequency filter capacitor C2, provides stable operating voltage to controlling integrated IC2；Another road switchs through accumulation of energy inductance L1, FREQUENCY CONTROL Q2, isolation rectification diode D1, accumulation of energy boost capacitor C6 provide energy to load；Electric capacity C3 gives and controls integrated IC2 pin 8 to filter Ripple, resistance R7, electric capacity C5 give and control integrated IC2 pin 4 to provide frequency of oscillation, resistance R2, resistance R8 and resistance R9, resistance R6 Giving with crystal triode Q1 controls integrated IC2 pin 3 to provide current sampling, reaches protection and cut-off frequency controlling switch Q2 is led Logical；Electric capacity C4 and resistance R5 switchs IC2 pin 1 to FREQUENCY CONTROL and provides loop compensation, and rheostat W1 and resistance R10 gives FREQUENCY CONTROL switch IC2 pin 2 provides Voltage Feedback；FREQUENCY CONTROL switch IC2 pin 6 output voltage passes through resistance R3, resistance R4 controls the switching tube that FREQUENCY CONTROL switchs Q2 to be turned on and off；Resistance R11 and diode D2 provides this circuit working state to refer to Show.