Lossless equalization principle a two-way

Lossless equalization principle a two-way

Two-way non-destructive principle of a balanced vgp-bps2 , vgp-bps2a charge and discharge the program structure as shown in Figure 1, each cell balancing FET shunt circuit are two Q, two diodes D, and an energy storage device composed of inductor L. (B) is a picture out of three when the circuit connecting the battery to link the case. In order to charge, for example, assume that an equilibrium in the two cell voltage circuit that there is no balance, such as VB1> VB2, then the Q11 conduction, the battery B1 to the charge inductor L1, when the Q11 deadline, L1 in order to freewheeling, and B2, D12 constitute a circuit, the vgp-bps2b , vgp-bps2c energy stored in the inductor transferred to B2, the realization of the energy transfer from B1 to B2.

By the same token when the VB1 < VB2, then through the Q12-off to achieve the energy transfer from B2 to B1, that is, the circuit is a two-way transfer of energy balance device. Although the energy transfer only between adjacent canon bg-e6 battery gri cells, due to the trend of energy transfer is always from the high-voltage battery to pass to the low battery voltage, and thus ultimately the balance of the whole group of batteries. Discharge, principles and canon eos 20d battery grip charging basically the same.

Since all the equilibrium structure of the circuit are the same, so easy to achieve a modular design.

The two-way balanced design of the module

The two-way balanced design of the module

To extend battery life, charge and discharge the inspiron e1405 battery should be to enable all of the individual remain in the same state of charge, while the battery voltage is the battery inconsistency of the most intuitive and most easy to measure the performance of the form, so the ideological balance of charge gist is the charge-discharge process as much as possible to enable the VGP-BPS8, VGP-BPS8A battery to maintain the same level.

Based on the above reasons, this design is used to compare the parameters of voltage, through the MCU control, to achieve a high-voltage battery to transfer energy directly to the battery voltage is low. (Figure 2 omitted)

Among them, a balanced circuit used to implement the VGP-BPS9, VGP-BPS9/B battery between two adjacent energy balance; data acquisition circuit the battery parameters in real-time collection, the main acquisition parameters are the battery terminal voltage and temperature, through the A / D converted to give microcontroller for battery real-time monitoring; microcontroller to monitor battery state and also of the balance control circuit, once voltage difference was found between the battery reached a certain value, that is, to the corresponding FET send trigger pulse to turn-on voltage of the battery to the high inductance charge FET end, the inductor stored energy to supplement VGP-BPS9/S, VGP-BPS9A/B battery charging voltage is low.

More than 20 manufacturers to send a joint surprise

More than 20 manufacturers to send a joint surprise

At the same time in the digital section dslr battery grip, anyone who is in a chain CellStar any consumer purchase, but also enjoy the 1 yuan per month 10 ring tones for promotions. CellStar for all the old users, in this digital festival can also feel wonderful, like, in the CellStar purchase of new and old users present their invoices for the enjoyment of August 1 -10 31 months of free Weather forecasting service. In addition, CellStar also jointly Philips, Sony and other manufacturers to send an exclusive gift for Xi’an citizens, consumers can get the value of the specified models Philips 108 yuan exclusive fashion watch, buy Sony Ericsson models will be designated to obtain 50 -200 million payment cards.

In addition to the exclusive canon bg-e2n battery grip launch of exciting activities, a special joint CellStar also Nokia, Motorola, Samsung and so on more than 20 well-known mobile phone manufacturers in the digital interpretation of the carnival festival launched 10 models fashion hot models, including Nokia N8600, Nokia N93I, Samsung I718, Samsung D908 platinum crystal, Dopod S1, LGKG70 so. Where in the CellStar consumers to purchase the 10 hot models, in addition to be able to get the most preferential price, can get Apple’s health package, rod box, badminton rackets, QQ dolls, plus moisture, tennis, summer sleeping mat, human scale, rice cooker, etc. So canon bg-e3 battery grip CellStar exclusive gift.

Meanwhile, CellStar Telecom have jointly Shaanxi Provincial Quality and Technical Supervision’s communications product testing agencies in Xi’an Kaiyuan mall for all consumers on-site real machine testing and battery performance testing services, regardless of whether you are buying cell phones, regardless of your cell phone is The new is old and canon bg-e5 battery grip, can be brought on-site free of charge at the Kaiyuan testing.

The on-site quality of mobile phone batteries

The on-site quality of mobile phone batteries

Quality inspection departments offer free testing on-site quality of mobile phone batteries for fujitsu t4220 battery

Digital Day event the mobile phone of course need to “join in the fun.” As participation in this section only a professional digital communications stores, Shaanxi CellStar Telecommunications preparing for this for a lot of exciting content, much more energetic in the digital HSTNN-OB53 section of a big show.

Exclusive offers best wins re-6

CellStar carefully prepared in the many highlights of activities vgp-bps9s, promotions of course, consumers are most concerned about.

It is understood that from today onwards, Xi’an CellStar will be available to consumers for all six re-cool summer promotions, send six heavy surprise for consumers. Where to buy mobile phones CellStar consumers can enjoy discount Genuine Parts 6-8; while access to M-Zone passionate experience voucher, it can be vibrant M-Zone shop in North Street, free Internet surfing, participate in video games by VGP-BPS10, experience Casual book bar style and so on, absolutely let you best wins.