DC-DC自动升降压电源模块 恒流降压升压模块
特色功能：
一、能升压也能降压！
举例1：输入电压无论高于12伏还是低于12伏，输出电压均能稳定12伏！
举例2：给模块12伏供电，输出既能降压到5伏，又可以升压到24伏！
二、恒流功能！
输入5~30伏内任意电压，即可直充蓄电池、锂电池、5号充电电池！！更可用于调节恒流LED亮度！
三、无需万用表即可设置恒流值！带刻度的单圈电位器使用更轻松！
四、真正的超低输出纹波电压！
低ESR电容+双级滤波，适合给音响功放板、模拟电路供电！
五、完善的保护功能！
MOS型接反防烧电路、输入欠压关断、输出过流保护等；
六、充满转灯功能！易使用！
恒流充电时亮红灯与蓝灯，恒压充电时仅亮蓝灯，接近充满时亮蓝灯与绿灯，充满亮时仅亮绿灯！
模块参数：
输入电压： 5 ~ 30V
输出电压：0.5 ~ 30V
输出电流：自然散热3A，加强散热4A
输出功率：自然散热35W，加强散热60W
输出纹波：12伏 3A输出下电压纹波为20mV，而常见的模块远超100mV以上！
转换效率：升压 87~91%；降压 87~89%（根据压差和负载会有变化）
输入过流保护：10A保险丝
输入防反保护：高效率MOS型
输入欠压保护：有
输出过流保护：有
工作频率：180KHZ
板子尺寸：69*28*21mm
下面用人人都有的手机充电器来给大容量的蓄电池充电！(很多升压模块是恒压型的，实现不了这个功能的)
英文描述：
Input voltage: 5 ~ 30V
Output voltage: 0.5 ~ 30V
Output current: 3A (add heat up to 4A)
Output power: 35W (add heat up to 60W)
Output ripple: 20mV (12V 3A), while the common module is far more than 100mV!
Conversion efficiency: 87 ~ 91%(Boost); 87 ~ 89%(Buck)
(This parameter will change according to the pressure and load)
Input overcurrent protection: 10A fuse
Input anti-protection: High efficiency MOS type
Input Undervoltage Protection: Yes
Output overcurrent protection: Yes
Operating frequency: 180KHZ
Board size: 69 * 28 * 21mm
Features:
1 it cao buck and boost.
no matter how large is the input voltage, the output voltage can be fixed on 12V.
when input voltage is 12V, the output voltage can be bucked to 5V, or boosted to 24V.
2. constant current function.
when the input voltage is among 5-30V, It can charge the battery, lithium battery, AA Rechargeable Battery.
3. you can set up the value of constant current without the help of multimeters.
it is easy to use the single lap potentiometer with scales.
4. the real ultra-low output ripple voltage!
Low ESR capacitor + two-stage filter, suitable for audio amplifier board, analog circuit power supply!
5. perfect protection function!
MOS type anti-anti-burning circuit, input undervoltage shutdown, output over-current protection.
6. turn the lights function! Easy to use!
Constant current charge when the red light and blue light, constant voltage charging only bright blue light, close to full when the blue light and green light, full of light only when the green light!
Package Include:
1 x DC-DC Auto Step Up Step Down Power Supply Constant Current Buck Boost Module
图片展示：
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