A combined camera battery cascade control circuit and cascade control method

Abstract

The invention provides a combined camera battery cascade control circuit for cascade control of a battery body and a cascade battery. The combined camera battery cascade control circuit comprises an intelligent battery management controller as well as a cascade control circuit and a microprocessor, wherein the intelligent battery management controller is used for acquiring battery capacity information of the battery body; the microprocessor is used for acquiring battery capacity information from the intelligent battery management controller, information and control information for exchanging capacity with the cascade battery, and used for transmitting control signals to the cascade control circuit; the cascade control circuit is used for controlling on / off of charge and discharge functions of the battery body according to the control signals transmitted from the microprocessor. When the capacity of the battery body is lower than the capacity of the cascade battery, power is supplied through the cascade battery, the battery body still has a discharge function, when the cascade battery is taken down, as the discharge function of the battery body is not powered off, the battery body can be automatically switched to discharge power, and switching short circuit can be avoided.

Description

technical field [0001] The invention relates to a combined camera battery cascade control circuit and a cascade control method. Background technique [0002] In the field of broadcasting and television, with the development of camera technology, especially the gradual popularization of 4K technology, the power of cameras continues to increase, and the requirements for battery capacity are getting higher and higher. Major camera battery manufacturers have launched batteries with large capacities, but In actual use, large-capacity camera batteries face the problem of air traffic control, and lithium-ion batteries with a power of more than 160w directly limit air transportation. For this reason, various battery manufacturers are looking for a solution for a camera battery that can provide cameras with a longer battery life and is convenient to carry in aviation. [0003] The patent number is "ZL201020273751.8", and the patent titled "a camera battery" proposes a solution to th...

AI Technical Summary

Problems solved by technology

[0004] In addition, the cascading control circuit commonly used in the current solution for cascading two batteries on the market only switches the battery with a higher voltage to the output, and cannot increase the load capacity of the entire system through the parallel connection of batteries.

However, if the batteries with different power levels are cascaded directly for parallel use, a large battery parallel current will be formed due to the difference in battery level, resulting in a large safety hazard for the circuit and the battery cell; there are other solutions Using cascaded batteries that limit users to use the same amount of power will have large limitations and troublesome use. For the above problems, it is necessary to propose a better solution

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