XY-SK220S CNC DC Buck Boost Power Supply Module 9A 220W Constant Voltage Current MPPT Solar Charging High-Precision with 1.8 Inch LCD Display

Specification:
Product Name: XY-SK220S CNC DC Buck-Boost Programmable Power Supply Module
Input Voltage: 6.0 – 36.0 V DC
Output Voltage: 0 – 40.0 V DC, resolution 0.01 V
Output Current: 0 – 9.000 A, resolution 0.001 A
Maximum Output Power: 220 W
Working Modes: Constant Voltage (CV), Constant Current (CC), Constant Power (CW)
Conversion Efficiency: about 88% (typical)
Output Ripple (typical): ≤150 mVpp
Data Storage: 10 groups of preset parameters
Display: 1.8" full-view high-brightness color LCD, 4‑way screen rotation
Protection Functions:
Input reverse connection
Output reverse current
Hardware + software input over‑current (13 A)
LVP: 5.5–36 V input under‑voltage
OVP: 0–42 V over‑voltage
OCP: 0–9.2 A over‑current
OPP: 0–240 W over‑power (default 220 W)
OTP / ETP: 60–110 °C internal & external over‑temperature
OHP: 1 min – 999 h 59 min over‑time
OAH / OWH: 0–99999 Ah / 0–99999 kWh over‑capacity & over‑energy
MPPT Function: supports MPPT solar charging
Cooling: intelligent temperature‑controlled fan + large-area heat sink
Communication Interface: 4‑pin XH1.25 serial port, Modbus protocol, supports WiFi/433M/485 optional modules
Buzzer: built-in, key tone & alarm
Buttons/Controls: 5 keys (V‑SET, I‑SET, SW, Power, Encoder)
Product Size: 86 × 50 × 45 mm (panel size about 81.6 × 40.6 mm)
Net Weight: about 108g
Package Size: 104 × 70 × 52 mm
Gross Weight: about 128g

Features:
1. Wide-range buck‑boost output: Covers 0–40 V / 0–9 A with 220 W power, suitable for lab use, battery charging, LED tests and various DC loads.
2. High-precision programmable control: Fine 0.01 V / 0.001 A adjustment, CV/CC/CW modes, 10 groups of memory, quick recall for frequently used setups.
3. Clear color LCD interface: 1.8" true-color screen displays voltage, current, power, capacity, energy and curves; supports 8 customizable color themes and 360° rotation.
4. Comprehensive electronic protection: Built‑in reverse connection, reverse current, over‑voltage, over‑current, over‑power, under‑voltage, over‑temperature, over‑time and over‑capacity protections with audible alarm.
5. Smart charging & MPPT support: MPPT solar charging, automatic stop on full charge, automatic recharge at low battery, external NTC temperature probe interface for advanced battery management.
6. Rich expansion & remote control: Standard serial communication with Modbus, optional WiFi / 433M / IR / RS‑485 modules, PC software and mobile APP for multi-device monitoring, control and firmware upgrade.

Package Includes:
1 x XY-SK220S DC Buck‑Boost Power Supply Module