CN204391876U - There is the resistance to of Bypass Control and fill resonant double-direction radio charge and discharge device - Google Patents

Abstract

There is the resistance to of Bypass Control and fill a resonant double-direction radio charge and discharge device, comprise: rectification unit, there is input, output and a plurality of control end; Resonance assembly unit produces induced field according to AC signal, or produces induced current according to induced field, and it is electrically connected the output of rectification unit; Battery discharge switch element, the first by-pass switch unit, the second by-pass switch unit have adverse current to be prevented and on-off action; The boosting during electric discharge of buck unit controls and step-down when being charged; Whether the opposite side of logic control element detecting resonance assembly unit has load, and controls the action of buck unit and battery discharge switch element, the first by-pass switch unit, the second by-pass switch unit, even controlled discharge or charging in conjunction with control switch; The surging of electrochemical capacitance then when absorbing each charging, the accumulating caused during to avoid charging at every turn is damaged.

Description

There is the resistance to of Bypass Control and fill resonant double-direction radio charge and discharge device

Technical field

The utility model has the resistance to of Bypass Control fill resonant double-direction radio charge and discharge device about a kind of, refers to that a kind of avoiding is damaged and connected external power source and fill resonant double-direction radio charge and discharge device to the charge accumulating that causes of battery with the resistance to of Bypass Control that have promoting the portable electric product of wireless charging discharging efficiency and buck efficiency at every turn especially.

Background technology

Along with the increasing prevalence of wireless charging, following certainly will developing into can the state of wireless charging everywhere, and though great convenience can be brought by wireless charging everywhere, no matter be only wired or wireless charging, at every turn charging first produced surging, the damage of accumulating all will inevitably be caused to battery, and then accumulating impairment battery life, in other words, more and more many along with charging times, the life-span of battery is also corresponding more and more short, and the efficiency for charge-discharge of battery is also more and more poor.

Everywhere can wireless charging when, most wireless charging place will be there is in the scope of activities of people simultaneously, or people repeatedly will pass in and out same wireless charging place, thus, entrained portable electric product certainly will by indistinguishably repeatedly wireless charging in one day, thus make the battery life in portable electric product come to an end ahead of time.

Secondly, because wireless charging discharging efficiency is still on the low side at present, namely discharge capacity is still higher in charge volume, and it is also on the low side to add buck efficiency, and the practicality causing wireless charging discharge still cannot improve, morning by the dirty disease of people for a long time.

In addition, no matter known wireless charging device is unidirectional or two-way charging, is to fix to use battery to provide transmitting electric power, the disappearance so easily causing the useful life of loss battery and provide the efficiency of transmitting electric power not good.

Therefore, how to design a kind of avoiding charge the accumulating damage caused to battery at every turn, the pattern that theres is provided of electric power can also be switched when connecting external power source to promote the device of wireless charging discharging efficiency and buck efficiency even, desire most ardently by the utility model a large problem of solution.

Utility model content

One of the purpose of this utility model is to provide a kind of to be had the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, the setting position special by electrochemical capacitance and the impedance system of electrochemical capacitance are lower than battery, therefore, can first be charged to electrochemical capacitance by during charging, thus the surging problem reached when allowing electrochemical capacitance keep out each charging, relatively can avoid charge the accumulating damage caused to battery at every turn; Preventing effect by the adverse current of by-pass switch unit, can avoid electric leakage, is have electricity saving function relatively.

Two of the purpose of this utility model is to provide a kind of to be had the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, be a kind of buck unit (being preferably the synchronous rectification of metal oxide semiconductcor field effect transistor formula) with synchronous rectification by buck unit, and promote the efficiency of buck according to this.

Three of the purpose of this utility model is to provide a kind of to be had the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, metal oxide semiconductcor field effect transistor is used to prevent as adverse current by described battery discharge switch element, the first by-pass switch unit, the second by-pass switch unit or as the significant components of switch, make the electricity of conducting time institute loss lower, so discharging efficiency can be higher, thus promote wireless charging discharging efficiency.

Four of the purpose of this utility model is to provide a kind of to be had the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, DC signal can be converted to AC signal by rectification unit, or change AC signal into DC signal, resonance assembly unit is made to produce induced field, or produce induced current according to induced field, thus effect of double-direction radio discharge and recharge is reached, make further to be provided with the resistance to portable electric product system wireless charging filling resonant double-direction radio charge and discharge device that the utility model has Bypass Control, also can wirelessly discharge.

Five of the purpose of this utility model is to provide a kind of double-direction radio charge and discharge device with Bypass Control, it has the pattern that double-direction radio is launched and received, when starting wireless transmission pattern and connect external power source, adopt external power source emission mode, and depart from the power supply from battery; When starting wireless transmission pattern and detect without external power source, then start battery emission mode, the transmitting electric power of resonance assembly unit is provided with the electric power of battery automatically; When starting wireless receive mode, be with wireless receiving electric power to charge to this portable electric product, to reach double-direction radio discharge and recharge, the useful life extending battery and the effect of service efficiency increased electric power.

For achieving the above object, what the utility model provided have the resistance to of Bypass Control fills resonant double-direction radio charge and discharge device, for being applied to the portable electric product that has circuit arrangement, this circuit arrangement is electrically connected with a receiving end and a battery, and what this had a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and comprise: a logic control element, a rectification unit, a buck unit, a battery discharge switch element, one first by-pass switch unit, one second by-pass switch unit, a control switch and one first electrochemical capacitance.Wherein, this logic control element has most pin, comprises a supply pin, detecting pin and an a plurality of control pin; This rectification unit is in order to change DC signal or AC signal, and have an input, two outputs and each and every one control end of plural number, wherein a plurality of control end is electrically connected at a plurality of control pins of logic control element respectively; Resonance assembly unit produces induced field according to AC signal, or produces induced current according to induced field, and it is electrically connected two outputs of rectification unit; This buck unit has one first voltage adjusting end, one second voltage adjusting end and two control ends, this the second voltage adjusting end is electrically connected at the input of this rectification unit, this two control end is electrically connected at first and second control pin of this logic control element respectively, and the supply pin of this logic control element is electrically connected at this second voltage adjusting end adjoined one another and this input; This battery discharge switch element has an arrival end, a port of export and a control end, this arrival end and the port of export are electrically connected at the discharge end of described battery and the first voltage adjusting end of this buck unit respectively, and this control end is electrically connected at the 3rd control pin of this logic control element; One end of this control switch is electrically connected at the discharge end of described battery, and the other end is electrically connected at the control end of this battery discharge switch element and the 3rd control pin of this logic control element; First by-pass switch unit has an arrival end, a port of export and a control end, this port of export and arrival end are electrically connected at the receiving end of the protective circuit of described circuit arrangement and the first voltage adjusting end of this buck unit respectively, and control end is electrically connected at the 5th control pin of logic control element; This second by-pass switch unary system has an arrival end, a port of export and a control end, this port of export and arrival end are electrically connected at the receiving end of described circuit arrangement and the second voltage adjusting end of this buck unit respectively, and this control end is electrically connected at the 5th control pin of this logic control element; One electrode of this first electrochemical capacitance is electrically connected at the junction of the receiving end of described circuit arrangement and the port of export of this second by-pass switch unit, and forms a first node in this junction, its another electrode then ground connection.

Thus, surging problem when electrochemical capacitance can be allowed to keep out each charging, can avoid charge the accumulating damage caused to battery relatively at every turn; Moreover, prevent effect by the adverse current of battery discharge switch element, the first by-pass switch unit, the second by-pass switch unit, so that electric leakage can be avoided, relatively there is electricity saving function.

Moreover, the utility model also provides a kind of to be had the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, be a kind of buck unit (being preferably the synchronous rectification of metal oxide semiconductcor field effect transistor formula) with synchronous rectification by buck unit, and promote the efficiency of buck according to this.

In order to further understand feature of the present utility model, feature and technology contents, refer to following about detailed description of the present utility model and accompanying drawing, only accompanying drawing only provides reference and explanation use, is not used to limit the utility model.

Accompanying drawing explanation

Fig. 1 is that the utility model has the resistance to of Bypass Control and fills the calcspar that resonant double-direction radio charge and discharge device is electrically connected at the first embodiment of a portable electric product.

Fig. 2 is that the utility model has the resistance to of Bypass Control and fills the circuit diagram that resonant double-direction radio charge and discharge device is electrically connected at the first embodiment of a portable electric product.

Fig. 3 is the resistance to schematic diagram filling resonant double-direction radio charge and discharge device that the utility model two has Bypass Control.

Fig. 3 A is that the utility model first has the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device circuit diagram.

Fig. 3 B is that the utility model second has the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device circuit diagram.

Fig. 4 is the equivalent electric circuit calcspar of the utility model second embodiment.

Symbol description in accompanying drawing

1 logic control element, 11 ~ 20 the first ~ ten control pins, 1a supply pin, 1b detects pin, 1c launches maintenance loop, 2 rectification units, 21 inputs, 22 outputs, 23 the first transistors, 24 transistor secondses, 25 third transistor, 26 the 4th transistors, 3 buck unit, 31, 32 first, two voltage adjusting ends, 33, 34 control ends, 35, 36 first, two metal oxide semiconductcor field effect transistors, 37 inductance, 4 battery discharge switch elements, 4a second by-pass switch unit, 4b first by-pass switch unit, 41 arrival ends, 42 ports of export, 43 control ends, 431 Section Points, 44, 45 first, two metal oxide semiconductcor field effect transistors, 46 first resistance, 47 transistors, 48 second resistance, 5 control switchs, 6 first electrochemical capacitances, 61 first nodes, 7 resonance assembly unit, 71 inductance, 72 electric capacity, 8 current/voltage detecting units, 9 portable electric products, 91 circuit arrangements, 911 signal output ends, 92 protective circuits, 921 receiving ends, 93 batteries, 931 discharge ends, 94 external power sources.

Embodiment

See also Fig. 1 and Fig. 2, for the utility model is applied to calcspar and circuit diagram that one has portable electric product 9 first embodiment of circuit arrangement 91.This circuit arrangement 91 is electrically connected with receiving end 921 and a battery 93, and preferably, this circuit arrangement 91 also has a protective circuit 92, and this protective circuit 92 is electrically connected between this receiving end 921 and battery 93.What this had a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and comprises: logic control element 1, rectification unit 2, buck unit 3, battery discharge switch element 4, a 1 first by-pass switch unit 4b, the second by-pass switch unit 4a, control switch 5,1 first electrochemical capacitance 6, resonance assembly unit 7 and one second electrochemical capacitance (not shown), wherein the receiving end 921 of this circuit arrangement 91 is electrically connected an external power source 94.

This logic control element 1 has the first ~ ten control pin 11 ~ 20 and supply pin 1a and detecting pin 1b, and the pin of its non-marking component symbol is then grounding leg.

This rectification unit 2 is conversion one DC signal or an AC signal, there is input 21, two output 22 and an a plurality of control end, this output 22 is electrically connected at resonance assembly unit 7, a plurality of control end is electrically connected at a plurality of control pins 17,18,19,20 of logic control element 1 respectively, and detailed annexation is in describing afterwards.

This buck unit 3 has one first voltage adjusting end 31,1 second voltage adjusting end 32 and two control ends 33,34, this second voltage adjusting end 32 is electrically connected at the input 21 of this rectification unit 2, this two control end 33,34 is electrically connected at first and second control pin 11,12 of this logic control element 1 respectively, and the supply pin 1a of this logic control element 1 is electrically connected at this this second voltage adjusting end 32 and this input 21 adjoined one another.Preferably, this buck unit 3 is a kind of buck unit 3 with synchronous rectification, and be metal oxide semiconductcor field effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) formula synchronous rectification.

This buck unit 3 with synchronous rectification comprise an inductance 37 and two each other series aiding connection first, two metal oxide semiconductcor field effect transistors 35, 36, this is first years old, two metal oxide semiconductcor field effect transistors 35, 36 each tools one control pole (non-marking component symbol), this two control pole is electrically connected at two control ends 33 of this buck unit 3 respectively, 34, this is first years old, two metal oxide semiconductcor field effect transistors 35, 36 in series connection after one end be electrically connected at described second voltage adjusting end 32, another end is ground connection then, one end of this inductance 37 is electrically connected at described first voltage adjusting end 31, another end be then electrically connected at this first, two metal oxide semiconductcor field effect transistors 35, between 36.

This battery discharge switch element 4 has arrival end 41, port of export 42 and a control end 43, this arrival end 41 and the port of export 42 are electrically connected at the discharge end 931 of described battery 93 and the first voltage adjusting end 31 of this buck unit 3 respectively, are electrically connected at the 3rd control pin 13 (using as emitting identification) of this logic control element 1 as its control end 43.Preferably, the 4th control pin 14 of this logic control element 1 is electrically connected at the 3rd control pin 13 with circuit type further, and the transmitting namely shown in figure keeps loop 1c (using as continuing to remain on emission mode).

One end of this control switch 5 is electrically connected at the discharge end 931 of described battery 93, and another end is then electrically connected at the control end 43 of this battery discharge switch element 4 and the 3rd control pin 13 of this logic control element 1; Wherein, the joint of the another end of this control switch 5 and the control end 43 of this battery discharge switch element 4, forms a Section Point 431.Preferably, this control switch 5 is an automatic reset switch.

First by-pass switch unit 4b has arrival end 41, port of export 42 and a control end 43; this port of export 42 and arrival end 41 are electrically connected at the receiving end 921 of the protective circuit 92 of described circuit arrangement 91 and the first voltage adjusting end 31 of this buck unit 3 respectively; the 6th control pin 16 of this logic control element 1 is electrically connected at as its control end 43; by the 6th control pin 16 energy output control signal of this logic control element 1, to control ON or OFF of this first by-pass switch unit 4b.

This second by-pass switch unit 4a also has arrival end 41, port of export 42 and a control end 43; this port of export 42 and arrival end 41 are electrically connected at the receiving end 921 of the protective circuit 92 of described circuit arrangement 91 and the second voltage adjusting end 32 of this buck unit 3 respectively; the 5th control pin 15 of this logic control element 1 is electrically connected at as its control end 43; by the 5th control pin 15 energy output control signal of this logic control element 1, to control ON or OFF of this second by-pass switch unit 4a.Accordingly, in the receiving mode, logic control element 1 relatively can control ON or OFF of the first by-pass switch unit 4b and the second by-pass switch unit 4a to charge to battery 93; In the transmission mode, logic control element 1 ON or OFF that relatively can control the first by-pass switch unit 4b and the second by-pass switch unit 4a resistance toly fills resonant double-direction radio charge and discharge device with what have Bypass Control by battery or external power source to another and charges.

Secondly, what have a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and comprises one second electrochemical capacitance (not shown) further, this second electrochemical capacitance is parallel to described battery 93, certainly, the resistance to electrochemical capacitance filled set by resonant double-direction radio charge and discharge device that the utility model has a Bypass Control can be: only arrange the first described electrochemical capacitance 6, only arrange the second described electrochemical capacitance (not shown) or also can arrange the first described electrochemical capacitance 6 and the second electrochemical capacitance simultaneously.

One electrode of this first electrochemical capacitance 6 is electrically connected at the receiving end 921 of the protective circuit 92 of described circuit arrangement 91 and the junction of the port of export 42 of this second by-pass switch unit 4a; and another electrode then ground connection of first node 61, first electrochemical capacitance 6 is formed in this junction.Because the impedance of the first electrochemical capacitance 6 and the second electrochemical capacitance is lower than battery 93, therefore can first be charged to electrochemical capacitance by during charging, thus reach surging problem when allowing electrochemical capacitance keep out each charging; Moreover electrochemical capacitance is easy to again to be filled full, therefore will immediately then battery 93 is charged.

Resonance assembly unit 7 is electrically connected two outputs 22 of rectification unit 2, comprises inductance 71 and the electric capacity 72 be mutually electrically connected, and inductance 71 and electric capacity 72 can the mode of serial or parallel connection connect.Resonance assembly unit 7 produces an induced field according to AC signal, or produce an induced current according to an induced field, and when the inductance that inductance 71 and electric capacity 72 have is anti-and Xc cancels each other, that is maximum electric current can be produced when inductance 71 and electric capacity 72 reach resonance frequency.The generation of induced current and induced field will describe in following content.

Incorporated by reference to consulting Fig. 1, shown in Fig. 2, battery discharge switch element 4, first by-pass switch unit 4b, second by-pass switch unit 4a has one first resistance 46 and two separately toward each other to first of series connection, two metal oxide semiconductcor field effect transistors 44, 45, the two ends of this two metal oxide semiconductcor field effect transistor after series connection are described battery discharge switch element 4, first by-pass switch unit 4b, the arrival end 41 of the second by-pass switch unit 4a and the port of export 42, this is first years old, two metal oxide semiconductcor field effect transistors 44, 45 each tools one control pole (non-marking component symbol), and this two control pole is electrically connected at battery discharge switch element 4, first by-pass switch unit 4b, the control end 43 of the second by-pass switch unit 4a, one end of this first resistance 46 be electrically connected at this first, two metal oxide semiconductcor field effect transistors 44, between 45, another end is then also electrically connected at battery discharge switch element 4, first by-pass switch unit 4b, the control end 43 of the second by-pass switch unit 4a.In addition, battery discharge switch element 4, first by-pass switch unit 4b, the second by-pass switch unit 4a also have transistor 47 and one second resistance 48 separately, first pole of this transistor 47 is electrically connected at the control pole (non-marking component symbol) of this first and second metal oxide semiconductcor field effect transistor 44,45, the second pole then ground connection of this transistor 47, and this second resistance 48 is electrically connected between the control end 43 of the 3rd pole of this transistor 47 and battery discharge switch element 4, first by-pass switch unit 4b, the second by-pass switch unit 4a.

The resistance to emission mode filling resonant double-direction radio charge and discharge device first embodiment that the utility model has Bypass Control is below described: what have a Bypass Control due to this resistance toly fills resonant double-direction radio charge and discharge device and be defaulted as receiving mode, therefore, if for entering emission mode, then must press control switch 5 and switch.

Suppose that one is provided with the resistance to portable electric product 9 filling resonant double-direction radio charge and discharge device that the utility model has Bypass Control, during for the electric power of its cells 93 to be provided with the electronic product of wireless charging device by wireless way for transmitting to another, first press the conducting that control switch 5 makes, the electricity of battery 93 is in after control switch 5, the 3rd control pin 13 (that is: emitting identification control pin) can be flowed through again and allow logic control element 1 identification be switch to emission mode at present, logic control element 1 produces the control signal comprising a transfer mode signal or a receiving mode signal further, in this embodiment, this control signal is a battery transfer mode signal.Originally battery 93 electric power that blocks by battery discharge switch element 4, electric power is allowed to pass through when after control switch 5 conducting being meeting this battery discharge switch element 4 of conducting, then through buck unit 3 the first metal oxide semiconductcor field effect transistor 35 and be connected to the supply pin 1a of logic control element 1, to power to logic control element 1.And utilize the block of the first by-pass switch unit 4b, the second by-pass switch unit 4a and the electric power of battery 93 is unlikely and recharge.When logic control element 1 identification is emission mode at present, can also utilize to launch and keep loop 1c (using as continuing to remain on emission mode) and continue to allow the transmitting of the 4th control pin 14 keep signal to be supplied to the 3rd control pin 13 always, reach the effect of launching and keeping, thus can emission state be remained on.

The utility model also comprises a current/voltage detecting unit 8, between the detecting pin 1b being electrically connected at logic control element 1 and resonance assembly unit 7, in order to detect the AC signal on resonance assembly unit 7.Logic control element 1 detects AC signal transfer control signal on resonance assembly unit 7 to battery discharge switch element 4, second by-pass switch unit 4a, the first by-pass switch unit 4b, buck unit 3 and rectification unit 2 according to current/voltage detecting unit 8, make battery discharge switch element 4, first by-pass switch unit 4b, the second by-pass switch unit 4a, buck unit 3 and rectification unit 2 can produce corresponding start according to control signal, so-called corresponding start means that circuit produces corresponding unlatching or closedown according to control signal.Whether the opposite side that current/voltage detecting unit 8 can detect resonance assembly unit 7 exists electronic product to be filled, if do not detect, then namely logic control element 1 controls to stop launching, and whether described detecting truly has a load to exist by current/voltage detecting unit 8 to the opposite side detecting this resonance assembly unit 7.Whether loaded detecting is then by judging whether resonance assembly unit 7 produces induced current or induced field.

If non-loaded: namely stop launching; If there is load: this logic control element is exported first and second metal oxide semiconductcor field effect transistor 35,36 that PWM (Wave-wide regulation controlled electric) signal goes to drive in this buck unit 3 by its first and second control pin 11,12 by 1.To make first by these PWM signals, two metal oxide semiconductcor field effect transistors 35, 36 can carry out with very high frequency the one open-one close that interlocks constantly, when the second metal oxide semiconductcor field effect transistor 36 for open and the first metal oxide semiconductcor field effect transistor 35 for closing time, because one end of the second metal oxide semiconductcor field effect transistor 36 and battery 93 is ground connection and forms primary Ioops, thus make the electric power of battery 93 can via the inductance 37 of battery discharge switch element 4 and buck unit 3, to flow through the second metal oxide semiconductcor field effect transistor 36, thus inductance 37 is charged, when the first metal oxide semiconductcor field effect transistor 35 for open and the second metal oxide semiconductcor field effect transistor 36 for closing time, after by inductance 37 from the electricity of battery 93, be change the first metal oxide semiconductcor field effect transistor 35, the inductance 37 charged externally can be discharged through rectification unit 2.

In other words, opened, to charge to inductance 37 and to allow inductance 37 discharge for one open-one close and closes one by first and second metal oxide semiconductcor field effect transistor 35,36.When there being electric current by inductance 71 in rectification unit 2, inductance 71 can produce the magnetic line of force, and the electronic product of opposite side then can convert electric current to after sensing this magnetic line of force.Furthermore, when there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device be in emission mode at present time, rectification unit 2 changes DC signal into AC signal, and AC signal is sent to resonance assembly unit 7.Resonance assembly unit 7 produces induced field according to AC signal, and now, the electronic product of opposite side then can produce induced current after sensing induced field.

Moreover, rectification unit 2 comprises the circuit that at least two or at least four transistors are formed, when rectification unit 2 comprises the circuit that at least two transistors form, the first transistor 23 and transistor seconds 24 are electrically connected in the mode of half-bridge, when rectification unit 2 comprises the circuit that at least four transistors form, the first transistor 23, transistor seconds 24, third transistor 25 and the 4th transistor 26 are electrically connected in the mode of full-bridge.Rectification unit 2 is in time receiving transfer mode signal, and conversion DC signal is converted to AC signal.

When transmitted, by battery 93 to rectification unit 2, first and second metal oxide semiconductcor field effect transistor 35,36 in buck unit 3 passed through therebetween is boosting (such as by the direct current of 3.6 ~ 4.2V, boosting as the alternating current of about 5V); Otherwise, be step-down by rectification unit 2 to 93, battery.If one of them of first and second metal oxide semiconductcor field effect transistor 35,36 described is when controlling buck, wherein another is then in control synchronization rectification.

When logic control element 1 switches to emission mode, lasting output one is launched maintenance signal by its 4th control pin 14, to keep battery discharge switch element 4 for ON; When logic control element 1 switches to receiving mode, lasting output one is received maintenance signal by its 5th control pin 15, to keep the second by-pass switch unit 4a for ON.

When logic control element 1 switches to receiving mode, logic control element 1 can also be kept loop 1c and control battery discharge switch element 4 being OFF by transmitting, and the control signal exported by the 5th control pin 15 of logic control element 1 and to control the second by-pass switch unit 4a be ON, thus the voltage after by buck unit 3 step-down is powered to the battery 93 of portable electric product 9 via the second by-pass switch unit 4a and in order to the first electrochemical capacitance 6 absorbing surging, certainly, can be passed through the protection of protective circuit 92 therebetween and the chargeable range of battery 93 be limited in (such as: the direct current of 4 ~ 6V) in preset range, when battery 93 is filled full, protective circuit 92 controls to stop charging, if and the electronic product of opposite side is being detected less than in loaded situation, also can automatically stop electric discharge (even when discharging, if when the electricity of its cells is lower than a set point, also electric discharge can be stopped).

In addition, what the utility model had a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and can connect external power source 94 further, resistance toly fills resonant double-direction radio charge and discharge device with what have Bypass Control by external power source 94 to another and charges.In other words, when resistance to fill resonant double-direction radio charge and discharge device have connect external power source 94 time, adopt external power source 94 to power emission mode, and the power supply departed from from battery 93 is to save the power consumption of battery, reaches the object in prolongation battery 93 useful life further; Otherwise, if when detecting is less than external power source 94, then battery emission mode as above can be started, switch to automatically allow the electric power of battery 93 provide to have the resistance to transmitting electric power filling resonant double-direction radio charge and discharge device of Bypass Control to press control switch 5.

The receiving end 921 of current/voltage detecting unit 8 and circuit arrangement 91 is electrically connected external power source 94, and current/voltage detecting unit 8 is for the voltage default value of the magnitude of voltage and logic control element 1 inside of detecting external power source 94.In the transmission mode, if the magnitude of voltage of external power source 94 is lower than the voltage default value of logic control element 1 inside, represent that the undertension of external power source 94 is using the power supply as charging, therefore, logic control element 1 transfer control signal to the first by-pass switch unit 4b, to open the first by-pass switch unit 4b.Arrival end 41 due to the first by-pass switch unit 4b is electrically connected the first voltage adjusting end 31 of buck unit 3, thus makes the voltage of external power source 94 still must promote via buck unit 3.Moreover, if the magnitude of voltage of external power source 94 is higher than the voltage default value of logic control element 1 inside, represent that the voltage of external power source 94 is sufficient, therefore, logic control element 1 transfer control signal to the second by-pass switch unit 4a, to open the second by-pass switch unit 4a, makes the voltage of external power source 94 directly can be sent to rectification unit 2 and carries out rectification, accordingly, the process that electric power transmits can avoid the loss causing electric power via buck unit 3.

After current/voltage detecting unit 8 has detected connection external power source 94, the wireless charging device of tool Bypass Control switches to external power source emission mode, now the 4th control pin 14 of logic control element 1 can send control signal, battery discharge switch element 4 is closed prevent battery 93 from discharging, and the result of external power source 94 magnitude of voltage and logic control element 1 builtin voltage default value is compared according to above-mentioned current/voltage detecting unit 8, open the second by-pass switch unit 4a or open the first by-pass switch unit 4b, and electric power is sent to rectification unit 2 so that direct current is converted to alternating current, transmitting electric power is externally provided after responding to alternating current to provide resonance assembly unit 7, produce the principle of transmitting electric power as the above-mentioned start transmitting electric power with battery 93, repeat no more in this.

Resistance to emission mode and the receiving mode filling resonant double-direction radio charge and discharge device first embodiment that the utility model has Bypass Control is below described:

Refer to Fig. 3, for the utility model two has the resistance to schematic diagram filling resonant double-direction radio charge and discharge device of Bypass Control, it is respectively first and second has the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device.For ease of emission mode of the present utility model and receiving mode are described, in Fig. 3 A, illustrate the first resistance to filling in resonant double-direction radio charge and discharge device circuit diagram and Fig. 3 B with Bypass Control illustrate second and there is the resistance to of Bypass Control fill resonant double-direction radio charge and discharge device circuit diagram, that is when first there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device be emission mode time, second there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device be then receiving mode; Otherwise, when first there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device be receiving mode time, second there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device be then emission mode.When the double-direction radio charge and discharge device of the utility model second portable electric product 9 resonance assembly unit 7 according on rectification unit 2 AC signal produce induced field time (emission mode), what be provided with that the utility model first has a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and can produce induced current (receiving mode) on resonance assembly unit 7, afterwards, induced current is then via rectification unit 2, power to logic control element 1 via supply pin 1a again, then, received electricity will through buck unit 3 by step-down.

When rectification unit 2 receives receiving mode signal, the AC signal on switch resonance assembly unit 7 is converted to DC signal.The first transistor 23 of rectification unit 2, transistor seconds 24, third transistor 25 and the 4th transistor 26 comprise metal oxide semiconductcor field effect transistor or gallium nitride field-effect transistor (GAN FET) in the utility model.The frequency of the AC signal of resonance assembly unit 7 of the present utility model is between 10kHz to 10MHz, and in lower frequency (kHz), the transistor of rectification unit 2 is applicable to using metal oxide semiconductcor field effect transistor; In higher frequency (MHz), the transistor of rectification unit 2 is applicable to using gallium nitride field-effect transistor.

In sum, when the double-direction radio charge and discharge device that the utility model has Bypass Control starts receiving mode, logic control element 1 sends control signal according to the electric power size received by the 5th control pin 15 or the 6th control pin 16, to open the second by-pass switch unit 4a or the first by-pass switch unit 4b, and by the electric power of reception through rectification unit 2 so that alternating current is converted to direct current, by buck unit 3, direct current step-down or direct receiving end 921 pairs of batteries 93 electric power of reception being sent to circuit arrangement 91 are charged, portable electric product 9 is made to use the object reaching wireless charging.

Refer to shown in Fig. 4, the utility model second embodiment there is Bypass Control resistance to fill resonant double-direction radio charge and discharge device identical with the first embodiment, difference is in the control switch 5 do not had in this second embodiment in the first embodiment, and the control changing the control signal exported with portable electric product 9 replaces the control switch 5 of the first embodiment.

As figure, the circuit arrangement 91 of this portable electric product 9 has a signal output end 911, and exports a control signal via the signal output end 911 of this circuit arrangement 91 with the manipulation (such as: the physical button of pressing portable electric product 9 or touch-control one virtual key by the Touch Screen of portable electric product 9) through staff.

The utility model has the resistance to of Bypass Control and fills in the second embodiment of resonant double-direction radio charge and discharge device, the Section Point 431 of described battery discharge switch element 4 is electrically connected at this signal output end 911, and the control signal exported to utilize this signal output end 911 switches to emission mode to allow logic control element 1 (via the 3rd control pin 13).

In sum, the resistance to feature of filling resonant double-direction radio charge and discharge device with Bypass Control of the present utility model is: the setting position special by electrochemical capacitance and the impedance of electrochemical capacitance are lower than battery, therefore, can first be charged to electrochemical capacitance by during charging, thus the surging problem reached when allowing electrochemical capacitance keep out each charging, relatively can avoid charge the accumulating damage caused to battery at every turn; By controlling the unlatching of battery discharge switch element 4, first by-pass switch unit 4b and the second by-pass switch unit 4a or closing to avoid electric leakage, be that there is electricity saving function relatively; Be a kind of buck unit with synchronous rectification by buck unit 2, be preferably metal oxide semiconductcor field effect transistor formula synchronous rectification (MOSFET synchronous rectification), and promote the efficiency of buck according to this; Also first and second metal oxide semiconductcor field effect transistor 44,45 is used to prevent as adverse current by battery discharge switch element 4, first by-pass switch unit 4b and the second by-pass switch unit 4a or as the significant components of switch, make the electricity of conducting time institute loss lower, so discharging efficiency can be higher, thus promote wireless charging discharging efficiency; DC signal can be converted to AC signal by the resistance to rectification unit 2 filling resonant double-direction radio charge and discharge device by the utility model with Bypass Control, or change AC signal into DC signal, resonance assembly unit 7 is made to produce induced field, or produce induced current according to induced field, thus reach effect of double-direction radio discharge and recharge, make to be provided with the resistance to portable electric product 9 filling resonant double-direction radio charge and discharge device with Bypass Control of the present utility model further and be wireless charging, also can wirelessly discharge.

In addition, being there is by the utility model the double-direction radio charge and discharge device of Bypass Control, can, when connecting external power source 94, adopting external power source 94 to power emission mode, and to depart from from the power supply of battery 93 to save the power consumption of battery 93, reach the object in prolongation battery 93 useful life further.Furthermore, when detecting without external power source 94, then start battery 93 emission mode, the transmitting electric power of resonance assembly unit 7 is provided with the electric power of battery 93 automatically.When detecting connection external power source 94, the double-direction radio charge and discharge device with Bypass Control according to the result of the voltage and logic control element 1 compliance voltage level that compare external power source 94, can select the electric power transmitting external power source 94 with bypass circuit.Accordingly, the effect of service efficiency that the double-direction radio charge and discharge device that the utility model has a Bypass Control can reach double-direction radio discharge and recharge, the useful life extending battery and increase electric power.

The above, be only better possible embodiments of the present utility model, non-ly therefore namely limit to the scope of the claims of the present utility model, the equivalent structure change of such as using the utility model specification and accompanying drawing content to do, all reason is with being contained in interest field of the present utility model.

Claims (16)

1. one kind has the resistance to of Bypass Control and fills resonant double-direction radio charge and discharge device, be applied to the portable electric product that has circuit arrangement, it is characterized in that, this circuit arrangement is electrically connected with a receiving end and a battery, and what this had a Bypass Control resistance toly fills resonant double-direction radio charge and discharge device and comprise:

One logic control element, has a supply pin, detecting pin and an a plurality of control pin;

One rectification unit, has an input, two outputs and a plurality of control end, and wherein this plurality of control end system is electrically connected at a plurality of control pins of this logic control element respectively;

One resonance assembly unit, is electrically connected two outputs of this rectification unit;

One buck unit, there are one first voltage adjusting end, one second voltage adjusting end and two control ends, this the second voltage adjusting end is electrically connected at the input of this rectification unit, this two control end is electrically connected at first and second control pin of this logic control element respectively, and the supply pin of this logic control element is electrically connected at this second voltage adjusting end and this input of adjoining one another;

One battery discharge switch element, there is an arrival end, a port of export and a control end, this arrival end and this port of export are electrically connected at the discharge end of this battery and the first voltage adjusting end of this buck unit respectively, and this control end is electrically connected at the 3rd control pin of this logic control element;

One control switch, its one end is electrically connected at the discharge end of this battery, and its another end is electrically connected at the control end of this battery discharge switch element and the 3rd control pin of this logic control element;

One first by-pass switch unit, there is an arrival end, a port of export and a control end, this port of export and this arrival end are electrically connected at the receiving end of this circuit arrangement and the first voltage adjusting end of this buck unit respectively, and this control end is electrically connected at the 6th control pin of this logic control element;

One second by-pass switch unit, there is an arrival end, a port of export and a control end, this port of export and this arrival end are electrically connected at the receiving end of this circuit arrangement and the second voltage adjusting end of this buck unit respectively, and this control end is electrically connected at the 5th control pin of this logic control element; And

One first electrochemical capacitance, one electrode is electrically connected at the receiving end of this circuit arrangement and the junction of this second by-pass switch unit port of export and this first by-pass switch unit port of export, and forms a first node in this junction, its another electrode then ground connection;

Wherein the receiving end of this circuit arrangement is electrically connected an external power source.

2. have the resistance to of Bypass Control as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, comprise one second electrochemical capacitance, this second electrochemical capacitance is parallel to this battery.

3. have the resistance to of Bypass Control as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, this circuit arrangement has a protective circuit, and this protective circuit is electrically connected between this battery and this receiving end.

4. have the resistance to of Bypass Control as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, wherein this buck unit is a kind of buck unit with synchronous rectification, and is the synchronous rectification of metal oxide semiconductcor field effect transistor formula.

5. there is Bypass Control resistance to as claimed in claim 4 and fill resonant double-direction radio charge and discharge device, it is characterized in that, this buck unit with synchronous rectification comprises the metal oxide semiconductcor field effect transistor of an inductance and two series aiding connection each other, the each tool one of this two metal oxide semiconductcor field effect transistor controls pole, this two control pole is electrically connected at two control ends of this buck unit respectively, this two metal oxide semiconductcor field effect transistor one end after series connection is electrically connected at this second voltage adjusting end, and another end is ground connection then; One end of this inductance is electrically connected at this first voltage adjusting end, and another end is then electrically connected between this two metal oxide semiconductcor field effect transistor.

6. there is Bypass Control resistance to as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, this battery discharge switch element, this the first by-pass switch unit and this second by-pass switch unit have one first resistance and two toward each other to the metal oxide semiconductcor field effect transistor of series connection, the two ends of this two metal oxide semiconductcor field effect transistor after series connection are arrival end and the port of export of described back-flow preventer, the each tool one of this two metal oxide semiconductcor field effect transistor controls pole, this two control pole is electrically connected at the control end of this back-flow preventer, one end of this first resistance is electrically connected between this two metal oxide semiconductcor field effect transistor, another end is also electrically connected at the control end of this back-flow preventer.

7. there is Bypass Control resistance to as claimed in claim 6 and fill resonant double-direction radio charge and discharge device, it is characterized in that, wherein this battery discharge switch element, this first by-pass switch unit and this second by-pass switch unit also have a transistor and one second resistance, first pole of this transistor is electrically connected at the control pole of this two metal oxide semiconductcor field effect transistor, second pole ground connection of this transistor, this second resistance is electrically connected at the 3rd of this transistor the between pole and the control end of this back-flow preventer.

8. have the resistance to of Bypass Control as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, the 4th control pin of this logic control element is electrically connected at the 3rd control pin with circuit type.

9. have the resistance to of Bypass Control as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, this control switch is an automatic reset switch.

10. there is Bypass Control resistance to as claimed in claim 1 and fill resonant double-direction radio charge and discharge device, it is characterized in that, comprise a current/voltage detecting unit, be electrically connected this receiving end of this detecting pin of this logic control element, this resonance assembly unit and this circuit arrangement.

11. have the resistance to of Bypass Control as claimed in claim 1 fills resonant double-direction radio charge and discharge device, and it is characterized in that, wherein this rectification unit comprises at least two or at least four transistors.

12. have the resistance to of Bypass Control as claimed in claim 11 fills resonant double-direction radio charge and discharge device, it is characterized in that, this rectification unit this at least two-transistor be with half-bridge be electrically connected, this at least four transistor of this rectification unit is electrically connected with full-bridge.

13. have the resistance to of Bypass Control as claimed in claim 12 fills resonant double-direction radio charge and discharge device, and it is characterized in that, this transistor comprises metal oxide semiconductcor field effect transistor or gallium nitride field-effect transistor.

14. have the resistance to of Bypass Control as claimed in claim 1 fills resonant double-direction radio charge and discharge device, it is characterized in that, this resonance assembly unit comprises the inductance and an electric capacity that are mutually electrically connected.

15. have the resistance to of Bypass Control as claimed in claim 14 fills resonant double-direction radio charge and discharge device, and it is characterized in that, this inductance of this resonance assembly unit and this electric capacity are with connected in series or in parallel.

16. have the resistance to of Bypass Control as claimed in claim 1 fills resonant double-direction radio charge and discharge device, and it is characterized in that, the frequency of the AC signal of this resonance assembly unit is between 10kHz to 10MHz.