# Automatic DC-DC converter, 3000W, Step Up-Down, 9–60V, 50A

> Automatic buck-boost DC-DC converter YF-BKT60V50A, 3000W, input voltage 9–58V DC, adjustable output voltage 3–56V DC, output current up to 50A. Provides CC/CV regulation, efficiency up to 98.7%, switching frequency 200kHz, protection against overcurrent, overvoltage, overtemperature and short circuit. Passive cooling or optional 12VDC fan. Dimensions 100x65x21mm, weight 180g.

- Page: https://sigmanortec.ro/en/automatic-dc-dc-converter-3000w-step-up-down-960v-50a
- Price: 844.19 RON
- Availability: In stock; 1-2 zile
- Reference: 88070 · EAN: 5947888364587
- Category: Electronic components > Other Tension Modules
- Specifications: Power: Over 20W; Supply Voltage: 9; Maximum Input Voltage: 60; Source Type: Automatic; Maximum Output Current: 50; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.; Output Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.223 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:21 (Europe/Bucharest)

## Description

3000W DC-DC buck-boost converter for automatic voltage increase or decrease, ideal for charging Li-Ion batteries and powering automotive, solar or industrial equipment. Offers precise CC/CV regulation, current up to 50A, efficiency up to 98.7% and integrated overcurrent, overvoltage and overheating protections, with passive cooling or optional fan.
The automatic power supply module, BKT60V50A, is a high-performance DC-DC buck-boost power supply, capable of raising or lowering the voltage according to needs.
It has a maximum power of 3000W and an adjustable current of up to 50A, making this module ideal for charging Li-Ion batteries, powering industrial equipment, solar, automotive or DIY systems.
The robust construction and efficiency of over 98% ensure stable operation and efficient heat dissipation.
The module offers precise voltage and current regulation (CC/CV), complete protection against overheating, short circuit, overvoltage and overcurrent, as well as automatic shutdown and controlled start (EN/ACC) function.
It is also equipped with a heatsink and supports the addition of a thermally controlled 12VDC fan for continuous operation at high loads.
Do not test the module with small laboratory power supplies (3A/5A) or electronic loads in DC mode.
Specifications:
Model: YF-BKT60V50A
Input voltage: DC 9–58V (can be switched to 5V)
Input Current: 50A Maximum
Output voltage: DC 3–56V adjustable
Output current: up to 50A
Maximum power: 3000W
Conversion efficiency: up to 98.7%
Switching frequency: 200kHz
Function: CC/CV (constant current / constant voltage)
Protections: overvoltage, overcurrent, overtemperature, short circuit
Cooling: passive (up to 10W) / active with fan over 10W
Working temperature: -45°C ~ +85°C
Maximum controller temperature: 125°C
Optional heatsink weight: 140g
Fan start temperature: 50–55°C
Thermal protection: 90–95°C
Weight: 180g
Dimensions: 100 × 65 × 21 mm
Parameter | Typical value | unity | Observations
Fan voltage | 11.5 – 12.2 | V | Active above 14 V Vin
Fan current | 0.2 – 0.3 | A | Automatic control at 50–55 °C
Thermal protection | 90–95 | °C | Automatically shuts off for protection
Conversion efficiency | 96.8 – 98.7 | % | Depending on voltage and load
Switching frequency | 200 | kHz | Constant, synchronized
size | 100 × 65 × 21 | MM | Without radiator
Weight | 180g | – | With the main board
Optional radiator | 140g | – | 105 × 70 × 15mm
Dynamic performance:
Start-up time: 4– 4.5ms
Voltage recovery rate: <2%
Voltage variation in load: max. 0.8%
Output voltage ripple: max. 240mV (1.2kW)
Current limiting: 59.5A
Fast response to variable load (10–100%)
Pinout:
PCB marking | Function | Detailed description
WIN+ | Positive power input | Connects input voltage (9–58 V DC). Does not accept alternating current (AC). Be careful of polarity – reversing may damage the board.
GND | Common table (entry/exit) | Negative common pole for power and output. Must be connected firmly for stable operation.
VO+ | Adjustable positive output | Adjustable output between 3 V and 56 V (depending on setting). Polarity must be respected.
RX1 | Output voltage adjustment | 25-turn potentiometer; rotate clockwise to increase output voltage (2.4 – 56 V).
X2 | Output current setting | 25-turn potentiometer; adjusts the current limit (5 – 59 A). Clockwise = higher current.
RX3 | Input tracking voltage adjustment | Range 9.5–56 V. Used for sources with automatic tracking (e.g. solar panels, fuel cells). Clockwise → higher tracking voltage.
P1-1 | External current control | Analog signal 0.26–1.25 V corresponding to 6–59 A. Requires input signal > 1 mA.
P1-2 | EN (Enable) input | When connected to GND → the power supply stops completely (including the auxiliary board). Recommended for external controlled shutdown.
P1-3 | GND control signal | Ground for external control signals (P1-1 / P1-2).
P2 | 12 V fan connector (optional) | Automatically activates the fan at 50–55 °C. Max. current. 0.3 A. Requires auxiliary power board.
P3 | ACC (auto control) start | 5–28 V for on/off control. A+ and A– for optocoupler control.
P4 (1-4) | Voltage/current display connector | An external voltmeter/ammeter or optional display module can be connected.
P5 | External voltage control | Signal 0–2 V → output voltage 0–56 V (proportional). Recommended for microcontroller control.
P6 | Auxiliary board power supply | 14V input required for fan and display when connected.
LED1 | Input voltage tracking indicator | On = activate input voltage tracking function (tracking mode).
LED2 | Power/work indicator | On = the module is active and properly powered.
Use:
Connect the polarities correctly: VIN+, VO+, GND.
Adjust the desired voltage with the RX1 potentiometer.
Adjust the maximum output current with RX2.
Turns on the fan if you exceed 10W load.
Do not test the module with small laboratory power supplies (3A/5A) or electronic loads in DC mode.