Discharging circuit used for capacity detector for storage battery of electric bicycle
A technology for electric bicycles and battery packs, which is applied in battery circuit devices, electric vehicles, circuit devices, etc., can solve the problems of high power consumption, poor reliability and high cost of power tubes, and can reduce the number, reduce the maximum power consumption, improve the The effect of system reliability
Inactive Publication Date: 2010-08-25
ZHEJIANG UNIV OF TECH
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Problems solved by technology
In order to overcome the disadvantages of large power consumption, high cost and poor reliability of the power tube in the discharge circuit of the existing battery pack capacity detector, the present invention provides a device that can effectively reduce the maximum power consumption of the power tube, reduce the cost, and have good reliability. The discharge circuit of the battery pack capacity detector of the electric moped
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The invention relates to a discharging circuit used for a capacity detector for a storage battery of an electric bicycle. The discharging circuit comprises a storage battery, a load resistor R1 and a main power tube Q1, wherein the storage battery is in series connection with the load resistor R1 and the main power tube Q1 in turn. The discharging circuit further comprises an adjustment branch circuit, wherein the adjustment branch circuit comprises an adjustment resistor R2 and an adjustment power tube; the adjustment resistor R2 is in series connection with the adjustment power tube; and the adjustment branch circuit is in parallel connection with the storage battery. The discharging circuit used for the capacity detector for the storage battery of the electric bicycle provided by the invention has the advantages of effectively reducing the maximum power dissipation of the power tube and reducing the cost, along with high reliability.
Description
Discharge circuit for battery capacity detector of electric moped technical field The invention relates to a battery pack capacity detector for an electric power-assisted vehicle (also called a battery pack discharger), in particular to a discharge circuit. Background technique Battery pack capacity detection method: The capacity of the battery is the main symbol of the continuous working ability of the battery. Battery capacity has two indicators: rated capacity and actual capacity. Rated capacity refers to the ampere-hour power indicated by the manufacturer when the battery is fully charged under specified conditions. For example, the battery of an electric bicycle is represented by a 2-hour rate capacity C2 (Ah). In actual work, what the user really cares about is the actual capacity of the battery, that is, the amount of electricity that the battery can actually discharge under specified conditions, expressed in Ce (Ah). When detecting the battery capacity, the act...
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IPC IPC(8): H02J7/00
Inventor 潘柏松梁利华孙建辉单晓杭谢明峰汪庆武
Owner ZHEJIANG UNIV OF TECH