Sensors and I/O
A MAX1771-based DC-DC boost converter that steps 12V up to 220V DC, designed for high-voltage loads such as Nixie tubes and tube amplifiers.
Official path: https://oshwhub.com/aknice/zhi-liu-sheng-gao-ya-mo-kuai
Input 12V DC, output up to 220V DC, driven by the MAX1771 current-mode PWM controller.
On-board inductor, MOSFET, flyback diode, and feedback resistor divider; output voltage is adjustable.
Suitable for Nixie tubes, tube amplifiers, and other high-voltage DC loads.
Controller: MAX1771 (current-mode boost controller with integrated gate driver).
Input: 12V DC, recommended supply current ≥2A depending on load power.
Output: up to 220V DC, set by the feedback resistor divider.
Key components: power inductor (e.g., 100µH), N-MOSFET (e.g., IRF540), fast recovery diode (e.g., UF4007), output capacitor (≥10µF/250V).
Board interfaces: input terminals (VIN/GND), output terminals (VOUT/GND), trimmer resistor for fine-tuning output voltage.
Pure hardware module; no firmware required.
For regulated control, an external MCU (e.g., ESP32) can adjust the feedback reference via PWM or DAC to implement dynamic voltage scaling.
Verify load voltage rating before power-up to avoid overvoltage damage.
MAX1771 boost topology, switching frequency approximately 300kHz.
Output voltage set by feedback resistor ratio: VOUT = 1.5V × (1 + R1/R2).
Efficiency typically 80-90%, depending on input voltage, load, and component selection.
中文
传感器与外设
基于MAX1771的12V转220V直流升压模块，适合辉光管、胆机等高压直流负载。
官方路径: https://oshwhub.com/aknice/zhi-liu-sheng-gao-ya-mo-kuai
输入12V直流，输出最高220V直流，由MAX1771电流模式PWM控制器驱动。
板载电感、MOSFET、续流二极管和反馈分压电阻，输出可调。
适用于辉光管、胆机等需要高压直流供电的场景。
主控：MAX1771（电流模式升压控制器，内置开关管驱动）。
输入：12V直流，建议电流≥2A（视负载功率）。
输出：最高220V直流，通过反馈电阻分压调节。
关键元件：功率电感（如100µH）、N-MOSFET（如IRF540）、快恢复二极管（如UF4007）、输出电容（≥10µF/250V）。
板载接口：输入端子（VIN/GND），输出端子（VOUT/GND），可调电阻用于微调输出电压。
纯硬件模块，无需固件。
如需稳压控制，可外接MCU（如ESP32）通过PWM或DAC调节反馈基准，实现动态调压。
上电前确认负载耐压，避免过压损坏。
MAX1771升压拓扑，开关频率约300kHz。
输出电压由反馈电阻比决定，典型公式：VOUT = 1.5V × (1 + R1/R2)。
效率约80-90%，具体取决于输入电压、负载和元件选择。