TWI303120B - - Google Patents

Description

1303120 ^96. I 20 p ; : / ' Λ ϊ - 'ΐ 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九 九Technical field of charging conditions. [Prior Art] According to the general category of secondary batteries, there are ship acid batteries, nickel recording batteries, nickel hydrogen batteries and lithium ion batteries. Therefore, many charging strategies for the aforementioned batteries have been developed, such as constant trickle current. Charge), constant current charging and constant voltage constant current charging (or rated voltage limit current, two-stage charging). Moreover, the most widely used constant voltage constant current charging strategy initially charges the battery with a constant current, and the charging reaches the set final voltage until the voltage is set, and then the charger is equal to the setting. The constant voltage of the voltage value charges the battery, and the charging current is automatically reduced; when the charging current is reduced to zero, the battery is considered to be 100% fully charged. In addition, there is a fuzzy fast charging system that develops active charging state detection capability, such as invention No. 140649, which can obtain a suitable charging current value to improve charging performance; and a neural network and gene algorithm are also used in The fuzzy control charging system is used to coordinate and optimize the variables to obtain a more suitable charging current. [Summary of the Invention] First, the problem solved 1. The trickle charge charging strategy has the advantages of simple circuit structure and low cost, but its charging time is too long 'because it is more than ten hours, so it is only used for charging at night (〇ver-1303120 night) ~Charge).丨 Accuracy, so often send 2 · constant current charging f slightly _ more pure from easy to achieve its not charging or overcharging phenomenon. 3, 疋 定 定 电 钱 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县 县. high. 1 The active charging __ ability to turn on the fast charging system, can indeed reduce the charging daily sales and protect (four) the pool is charged in the safe charging II®, although it has a very attractive charging performance, but the ship lies in the circuit Complex and production cost Second, the solution to solve the above problems, the present invention is the application of phase comparator, current pump, battery, differential amplifier, voltage control vibration (four), composed of phase-locked charging system to provide A charging current that is better and meets the safe charging conditions, and has a battery charging system that has the capability of automatic automatic locking (with the ability to call, etc.), which is fast, safe, and inexpensive. [Embodiment] As shown in the figure, The basic architecture of the phase-locked/frequency-locked loop, where ~, seven, and \ are wheeled phase/frequency A, output phase/frequency sense, phase/frequency, Wu difference^ and %pu voltage\. Phase/frequency comparator PFc (phase/

Frequency Comparator) is used to compare the rounded phase/frequency sense with the output phase / 1303120 frequency a. To get the phase/frequency error A. The low-pass filter LPF (L〇wPass Filter) is a phase/frequency driver that acts as a voltage controlled oscillator vc〇 (v〇itageC〇n1:r〇i 〇scillat〇r). The phase lock/frequency lock loop itself is a servo system, which can reduce the phase or the difference to zero to make the frequency of the voltage control knob close to the reference frequency, so it is suitable for tracking the frequency and phase of the output and input signals; Phase-locked battery charging pure PLBCS (Phase-LQcked face _

The block diagram of System) is shown in the second figure by Phase Comparator ^ (Current Pump) ^ (

Battery), differential amplifier M (Difference (4) and voltage control #mHVC0 (Voltage Control Oscillator) ^M^ ; Pu private and differential amplifier DA constitute - low pass chopper LPF (Low Pass = lter), m map can It is clear that the phase-locked battery charging system circuit PLBCS = the structure of the lock-and-lock circuit, which means that the original battery-type battery charging, charging and holding axis automatic tracking, automatic comparison and high freshness, etc. The whole workflow is as follows: 2 'Battery power (4) is detected to the differential amplification, this differential amplification, the battery ship after the output is suitable for the input of the electric control oscillator vc〇 ] / ' 控制 控制 控制 控制 则 则 则 则 则 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制This phase 1303120 is sent to the current suspicion P to generate the 充电 适 的 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 对 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池 电池Invented riding _ battery battery money _ contains three ^ charging process: fixed electricity 峨 (Bul k Current (five), variable current charging, two mMe C_nt Charge) and floating charge (F1〇at, if). The equivalent charging process is as shown in the third figure, and in conjunction with the second_show, the #system in the frequency-tracking state, the low-pass ferrite will press the driving voltage (four) face boots to quickly Reduce the error between the input solution and the feedback frequency. This means that the battery voltage is still not up to the set voltage. The system holds (4) the battery BT constant current charge, so it can effectively check the charging time; if the system is in phase tracking "(Phase--king State), (10) test 35 will be appropriate _ less voltage control oscillator VC0 drive voltage, meaning that the current pump cp will determine the appropriate charge H system is like a variable current charge . Finally, when the feedback frequency/phase is equal to the input frequency/phase and the output of the current pump cp is zero, the phase-locked battery charging system enters the phase locked state (Phase-L〇cked state) to the battery BT floats and keeps the battery at the set voltage. In other words, the battery pack will reach 100% full charge. For example, the fourth picture shows the phase-locked state (Phase-L〇cked State), the phase-tracking state (Phase-Tracking State), and the frequency tracking state (Frequency-

Tracking State), Locked-Iri Range' Schematic diagram of the relationship between the Capture Range and the pump voltage. In order to realize the work of the third figure, 1303120 2*, as shown in (e) and (1), the range of phase tracking must be equal to the lock = circumference and the capture range f _ rate is wide. It is clear from the fourth shot that when the system is in her age-like scale, the phase difference is poor (four), and the range of the target in the tracking state corresponds to the range of the call, the frequency tracking state corresponds to the b. A few different types of phase detectors (Phase Detector) have been mentioned in the past. For example, the fifth-shown is the average Gangnam 4 phase # difference curve provided by the continuous positive edge trigger phase comparator. Applicable to the phase-locked battery charging system; j The flip-type battery charging button proposed by the invention adopts a continuous positive-edge trigger phase comparison port. In the communication system and the servo control system, there are many kinds of phase-locked loop pump controllers. It has been proposed that there are some advantages in the combination of the fine 'secret communication _ and the ship control (four), the system and the battery charging system. In the battery Jingdao towel, the current output of the current pump cp is much larger than that of the conventional pump controller. This is because the lock-in phase cell charging system of the present invention (4) is used to control the battery charging current. The sixth figure (a) is not the current pump block @ of the phase-locked battery charging system. This current is controlled by the filter F (Filter), voltage / current converter v / c _ home seven -

Oerter) and current amplifier CAA_lfler), "medium, the main continent is to amplify the small signal current into a high-power current, from the battery power, the current operation of the battery charging system in the first phase of the battery charging system Briefly described as follows: Hundreds of first, when the phase error pulse wave will be sent to the filter to generate - phase error violation l3 〇 3l2 〇 turtle pressure f. As shown in Figure 6 (b), (c), the phase error voltage ^ And the phase error ξ 戍 ratio. Then, the voltage/current converter v/c converts the phase error voltage ^ into a phase error current ^. Next, the phase error current & is amplified by the current amplifier ca into the battery charging current A, The battery charging current is finally sent to the battery βτ to realize the battery charging process. Please refer to the seventh figure for an embodiment of the phase-locked battery charging system of the present invention, which uses the 疋4·2V clock ion battery. This embodiment is A continuous positive edge trigger phase is composed of the parent device PC, the voltage control oscillator V(3) and the current pump CP, the differential amplifier DA, and the battery BT. The current pump CP is operated by an operational amplifier (Ucc), power Field effect transistor (Qcc ) is composed of a capacitor (Cf) and two resistors (Rf, Rcc), wherein the resistor (RO and capacitor (Cf) acts like a filter f to derive the pump voltage. The differential amplifier (Ucc), power field The effect transistor (qcc) and the resistor (Rcc) form a voltage/down converter to convert to V/C (Voltage-to-Current Converter) and current amplification, CA (Current Amplifier). The differential amplifier DA is an operational amplifier (Ma). It is composed of four resistors (Rdal, Ma2, Rda3, Rda4). The eighth graphs (a), (b), and (C) show the experimental results of the invention, which are the open circuit voltage and charging current of the battery BT. (that is, the output of the current pump (3)) charging capacity graph; wherein, the eighth graph (a) results show that the present invention does not overcharge during the entire charging process. From the eighth graph (b) results can verify the phase lock The battery charging system does have the function of automatically completing the constant current, variable current and floating charge. The figure (c) shows that the invention can achieve 100% full charge. Figure IX (a), (b) And (c) each is the lock of the 1303120 phase battery charging system at G minute, 2q feedback frequency \ , , 150 knife 吋 吋 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮 轮The inflated step rate is in the variable current charging process before the constant current lock, so the action flow is shown in Fig. 2, the life system _ does provide more charging conditions. In summary, the phase-locked battery charging system of the present invention (4) is fine y Chqing system, PLBCS), to improve the charging speed of the battery, and the circuit is turned like a phase-locked loop. The lock-in system can utilize the automatic tracking, automatic locking and high-precision force of the phase-locked loop. Therefore, hunting by the phase-locked battery charging system can be easily realized automatically - the money three-stage money pool green process. Ploughing, through the experimental silk, the invention can indeed be fully charged under the Anqian pure piece. 1303120 [Simple description of the diagram] The first picture is the surface/face back hybrid architecture diagram. The second picture is a block diagram of a phase-locked battery charging system. The third figure is the equivalent charging process of the phase-locked battery charging system. The fourth picture is the phase-locked state/phase tracking heart/frequency tracking state/locking range/capture. The mad map is a continuous positive voltage waveform graph of continuous positive _ _ _ _ _ _ _ The sixth figure (4) is the block diagram of the phase-locked battery charging system. Sixth (8), she misreported the little helper. Figure 6 (C) The pump output voltage with a large phase error. The seventh figure is a circuit diagram of an embodiment of a phase locked battery charging system. The eighth picture shows the charging result of the phase-locked battery charging system: (5) there is no over-charging phenomenon curve g during the charging process, (6) the marriage holding the automatic current, variable current and floating charge work curve U; (6) Ageing The present invention does indeed produce a full charge profile. The ninth figure shows the waveform of the input frequency and feedback frequency of the phase-locked battery charging system at (a) G minutes (6) 20 minutes (c) 150 minutes. [Main component symbol description]

Phase-locked battery charging system circuit PLBCS phase/frequency comparator PFC

Low Pass Filter LPF Phase Comparator PC Battery BT Filter F

Voltage Controlled Oscillator VC0 Current Pump CP Differential Amplifier 电压 Voltage/Current Converter V/C 1303120 Current Amplifier CA Power Field Effect Transistor Qcc Resistor Rf, Rcc, Rdal, Operational Amplifier Ucc, Uda Capacitor Cf

Rda2, Rda3, Rda4

13

Claims (1)

1303123⁄4 is replacing the page; 96. 2 0 1· A phase-locked battery charging method is composed of a phase comparator, a current pump, a battery, a differential amplifier and a voltage controlled oscillator; wherein the charging method includes: a battery voltage is detected to the differential amplifier, the differential amplifier amplifies the detected battery voltage, and determines the input voltage suitable for the voltage controlled oscillator; b. the voltage controlled oscillator oscillates corresponding to Detecting the feedback frequency of the voltage and feeding it back to the phase comparator; c. The phase comparator compares the input frequency with the feedback frequency and generates a phase error; d. The phase error is sent to the current pump To generate a proper charging current to charge the battery; therefore, after a cycle that is repeated as described above, the battery will reach full charge to provide stable charging and automatically operate continuously in the frequency tracking state. , phase tracking status, and phase lock status. 2. The phase-locked battery charging method according to claim 1, wherein the 'current pump operation flow system comprises: a· when the phase error pulse wave is between the input frequency/phase and the feedback frequency/phase When it is sent to the filter to generate the DC voltage; b. This DC voltage is directly proportional to the phase error and phase error; c. The voltage/current converter depends on the phase error voltage as the phase error current; d· The phase error current is amplified by current || is amplified into f cell charging current; 1303120 pool charging process. Therefore, the battery current is most tilted to the battery to achieve electricity. 3. The phase-type battery charge comprises: the frequency error value; the target comparator is connected to the low-pass filter input terminal and the voltage control oscillator The end of the month,] know, as the parent wheel phase / frequency and output similar frequency, to get the phase / 'a low-pass filter n, composed of current (four), wire Ai| and the shaft, as electricity The phase/fresh drive wire of the vibrator can be reduced to reduce the phase or frequency difference to zero, so that the solution of (4) is close to the reference, providing the frequency and phase of the tracking output and the input signal; Connected to the output of the differential amplifier of the low-pass filter to detect the battery voltage after the battery is detected and amplified, and determine the input voltage suitable for the voltage controlled oscillator; The voltage control vibration 1 is supplemented by the feedback frequency of the detected voltage' and is returned to her ratio (4). The bribe will compare the input frequency with the feedback frequency and generate the - phase difference, the most voyage The phase is recorded in the current pump to generate a proper charge. Flow to charge the battery, and then after several Dun% above period, the battery to reach full charge, to brain and rapid charge time by up to a fully charged state. " 4. The phase-locked battery charging system according to item 3 of the scope of the patent application, wherein the current pump gamma-operating amplifier, the transition field effect, the “capacitor and the two electric devices” are formed. 13〇3l20 5. As in the fourth section of the patent application scope, the phase battery charger "resistance and capacitance constitutes a waver to provide the voltage of the current pump. Among them, the low-phase, rain-transfer range of the third phase of the phase-locked battery charging system, the heart, with her supply-voltage-driven voltage-controlled oscillator, 1'' speed reduction input frequency and feedback frequency b The sheep's turn can quickly judge the battery's electric soil, /, _ charge, check the charging time, and reach the frequency to trace the cause. 7. The phase-locked battery charging system according to item 3 of the patent application scope, wherein: ~ wave. „The current can be charged by 4 Pus moths, and the control voltage controls the driving voltage of the vibrator to provide the 辔雷4古二甩々丨1 充私, to achieve phase locking, with floating charge effect 0 8·such as a patent The phase-locked battery charging system of the third aspect, wherein the 忒 phase comparison system uses a positive-edge trigger phase comparator. 9. The phase-locked battery charging system according to claim 6, wherein the phase The range of tracking must be equal to the locked range, and the capture range needs to be wider than the frequency.