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SmallRig VB99 Pro - Frequently Asked Questions (FAQ)

SmallRig VB99 Pro
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Q1:各接口触发过流/过功率的保护机制时怎么样的?
A1:各接口保护机制如下:
Q2:多接口同时工作时,各端口功率如何分配?
Q3:BMS电源管理系统提供哪些电源保护?
A2:采用智能动态分配,实时计算当前所有端口所消耗的放电功率,得出剩余可放电功率,若剩余功率>5W允许
放电,其中,USB-C口功率根据剩余功率进行动态配置,否则限制剩余端口放电,防止当前已放电接口突然终止放
电造成设备损坏,已占用端口移除负载之后被占用功率将重新分配,所有接口输出功率总和不能超过100W。
A3:支持以下保护:
8V-OUT:放电电流超过4A,2秒后关闭8V-OUT放电,屏幕提示过流,直至拔除负载。
12V-OUT:放电电流超过4A,2秒后关闭12V-OUT放电,屏幕提示过流,直至拔除负载。
USB-C:放电启动时配置放电功率,根据当前可放电功率配置为100W、80W、65W、60W、45W、30W、18W、
15W,若其中一个USB-C端口正在使用,另外一个USB-C配置的最大放电功率为45W。
USB-C、USB-A:USB-C或者USB-A放电过流时关闭USB-C、USB-A放电,屏幕提示过流,直至拔除负载。
放电:
输出过流、过放、欠压、短路保护
过温、低温保护
充电:
输入过压保护
电池过充、过流保护
过温、低温保护
CN 常见问题
EN FAQ
Q1: What happens when each interface triggers overcurrent/overpower protection mechanisms?
Q2: How is power allocated to each port when multiple interfaces are working simultaneously?
Q3: What kinds of power protection does the BMS (Battery Management System) provide?
A1: The protection mechanisms for each interface are as follows:
A3: The BMS supports the following protection:
Discharging:
Output overcurrent, over-discharging, undervoltage, and short circuit protection
A2: Intelligent dynamic allocation is adopted to calculate the discharging power consumed by all ports in real time,
and to determine the remaining available discharging power. If the remaining power is > 5W, discharging is allowed.
The power for the USB-C port is dynamically configured based on the remaining power; otherwise, discharging for
the remaining ports is restricted to prevent sudden termination of discharging in the currently utilized interfaces,
which may damage the device. Once the load is removed from an occupied port, the allocated power will be
redistributed. The total power output from all interfaces shall not exceed 100W.
8V-OUT: The discharging current exceeds 4A; the 8V-OUT discharging is turned off in 2 seconds; and the screen
prompts overcurrent until the load is removed.
12V-OUT: The discharging current exceeds 4A; the 12V-OUT discharging is turned off in 2 seconds; and the screen
prompts overcurrent until the load is removed.
USB-C and USB-A: When overcurrent occurs during the discharging of USB-C or USB-A, the discharging of USB-C or
USB-A will be turned off. The screen will prompt overcurrent until the load is removed.
USB-C: The discharging power is configured during the discharging startup. It can be set to discharge at 100W, 80W,
65W, 60W, 45W, 30W, 18W and 15W, depending on the current available discharging power.If one of the USB-C ports
is in use, the maximum discharging power for the other USB-C port is set at 45W.
Over-temperature and under-temperature protection
Charging:
Input overvoltage protection
Battery over-charging and overcurrent protection
Over-temperature and under-temperature protection