DC Buck Boost Converter CC CV 0.6-30V Adjustable Power Module

CNC DC-DC Buck Boost Converter — Adjustable CC/CV Power Supply Module (0.6–30V)

Take full control of your electronics projects with this precision-engineered DC-DC Buck Boost Converter Power Supply Module. Whether you're powering lab equipment, charging batteries, or driving LEDs, this compact module delivers industrial-grade voltage and current regulation across a wide 0.6V–30V output range — all from a single, easy-to-use unit. Made in Mainland China.

Key Features

• Step-Up & Step-Down in One: True buck-boost design handles both voltage increase and decrease, giving you flexible output from a single DC input.
• Constant Voltage (CV) & Constant Current (CC) Modes: Quickly switch between CV and CC operation for versatile use as a lab power supply, battery charger, or LED driver.
• High-Precision LCD Display: Clear, professional-grade liquid crystal interface shows real-time voltage, current, power, capacity, energy, and runtime statistics at a glance.
• Rotary Encoder Control: Fast-spin encoder knob for rapid adjustments; single press to cycle parameters, long press to save settings and exit.
• Voltage & Current Lock: Press and hold encoder for 5 seconds to lock all settings and prevent accidental changes — unlock the same way.
• Soft Start: Gradual power-up sequence protects connected devices on startup.
• LED Dimming: In CC mode, rotate the encoder to instantly adjust LED brightness with zero strobe effect.

Comprehensive Hardware & Software Protection

• Hardware: Input reverse-polarity protection (no component damage), output short-circuit protection, output anti-backfill (connect directly to batteries — no extra diode needed)
• Software: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Over-Power Protection (OPP), Over-Temperature Protection (OTP at 100 °C), Input Under-Voltage Protection (LVP)
• Protection status codes displayed on LCD: LVP / OVP / OCP / OPP / OAH / OPH / OHP / OEP

Specifications

Three Primary Use Cases

1. Regulated Lab Power Supply

Set your target voltage and maximum current limit. The module will hold steady CV output and switch to CC mode automatically if the load demands more current than your set threshold — ideal for safely powering sensitive electronics on the bench.

2. Battery Charger

Set the floating charge voltage and charging current under no-load, then connect your battery. The module automatically transitions from CC to CV charging — correct for lithium (e.g. 4.2V for 3.7V cells) and lead-acid batteries (e.g. ~14V for 12V packs).

3. LED Constant Current Driver

Set the LED's rated current and maximum working voltage, connect your LED strip or array, and use the encoder to smoothly dim output current from 0 to the working value. No flicker, no strobe — smooth analogue-style dimming.

Capacity, Energy & Runtime Tracking

Built-in statistics track cumulative output capacity (Ah), energy (Wh), and runtime (hours). Set maximum thresholds (OAH, OPH, OHP) and the module will automatically cut output when limits are reached — perfect for battery discharge testing or timed charging cycles.

Package Includes

• 1× DC-DC Buck Boost CC/CV Power Supply Module

Note: For best performance, use an input voltage ≥ 7V. Colors may vary slightly due to screen calibration. Allow ±1–3 cm tolerance from manual measurement.

For guidance on electrical safety standards relevant to low-voltage power modules, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What is the difference between CC (Constant Current) and CV (Constant Voltage) mode on this buck boost converter?

A: In CV (Constant Voltage) mode, the module maintains your set output voltage regardless of load changes — ideal for powering fixed-voltage electronics. In CC (Constant Current) mode, the module caps output current at your set value — essential for battery charging and LED driving where a current limit is required. The LCD displays "CV" or "CC" so you always know which mode is active.

Q: Can this DC-DC power supply module charge lithium and lead-acid batteries directly?

A: Yes. The built-in output anti-backfill circuit means you can connect a battery directly to the output terminals without adding an external protection diode. Set the correct floating charge voltage (e.g. 4.2V for a 3.7V Li-ion cell, ~14V for a 12V lead-acid battery) and the appropriate charging current in CC mode. The module will automatically transition to CV charging as the battery nears full charge.

Q: What input voltage is recommended for maximum output power?

A: An input voltage of 7V DC or higher is recommended. While the module accepts input from 5V, output power decreases as input voltage drops below 7V. For the full 35W (natural cooling) or 50W (fan-cooled) output, use a suitable DC power adapter or supply rated at 7V–30V.

Q: How do I lock the voltage and current settings to prevent accidental changes?

A: With the module powered and your settings confirmed, press and hold the rotary encoder button for 5 seconds. The display will indicate the locked state. To unlock and resume adjustments, press and hold the encoder button again for 5 seconds.