Wrong menu selected
Free shipping for all orders of $150
RC GEAR BD RC GEAR BD
Select category
  • Select category
  • Electric Motor & Pump
    • DC Solar Pump
  • Electronic Boards
    • Audio Amplifier
    • Motor Driver
    • Voltage Regulator
  • Power, Batteries & Solar.
    • Battery Holder Case
    • Battery Testing Equipments
    • BMS & Balancer
    • Li-Po Battery
    • Lithium iron phosphate battery
    • Lithium-ion Battery
  • Sensor & Wireless Module
  • Tools, Kits & Learning
    • Connectors
    • Plastic Box
    • Soldering iron
  • Uncategorized
Login / Register
Wishlist
0 items ৳ 0
Menu
RC GEAR BD RC GEAR BD
0 items ৳ 0
Browse Categories
  • Electric Motor & PumpElectric Motor & Pump
    • AC PumpAC Pump
    • Air PumpAir Pump
    • DC Solar PumpDC Solar Pump
    • DC MotorsDC Motors
    • Brushless MotorBrushless Motor
    • Stepper MotorStepper Motor
    • Servo MotorsServo Motors
    • Vibration Motor
    • AC Synchronous MotorAC Synchronous Motor
    • Linear Actuator MotorLinear Actuator Motor
  • Electronic BoardsElectronic Boards
    • Audio AmplifierAudio Amplifier
    • Convertor BoardsConvertor Boards
    • MicrocontrollerMicrocontroller
    • Motor DriverMotor Driver
    • RelayRelay
    • Voltage RegulatorVoltage Regulator
  • Power, Batteries & Solar.Power, Batteries & Solar.
    • Charger & Power SupplyCharger & Power Supply
    • Battery Holder CaseBattery Holder Case
    • Li-Po BatteryLi-Po Battery
    • Lithium iron phosphate batteryLithium iron phosphate battery
    • Lithium-ion BatteryLithium-ion Battery
    • Solar Panel & InverterSolar Panel & Inverter
  • Tools, Kits & LearningTools, Kits & Learning
    • 3D Printer Parts3D Printer Parts
    • Body ChassisBody Chassis
    • CNC PartsCNC Parts
    • Gears - GearboxesGears – Gearboxes
    • Hub - Motor - Wheel CouplerHub – Motor – Wheel Coupler
    • Motor HoldersMotor Holders
    • Plastic BoxPlastic Box
    • Wheels - ShaftsWheels – Shafts
    • Sensor & Wireless ModuleSensor & Wireless Module
  • NEW ARRIVALS
  • SUPER DEALS
  • NEW USER ZONE
Dhalpur, Jatrabari - Dhaka
(880) 016-77260792
-7%Sold outNew
Click to enlarge
Home Uncategorized DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator
Solar Led Light Outdoor Wired Motion Sensor Safety Flood Light Ip65 Waterproof Garage/Garden/Yard/Walkway Led Solar Wall Light
Solar Led Light Outdoor Wired Motion Sensor Safety Flood Light Ip65 Waterproof Garage/Garden/Yard/Walkway Led Solar Wall Light ৳ 999 – ৳ 1,099Price range: ৳ 999 through ৳ 1,099
Back to products
Bluetooth 5.0 Decoder Board Dual Channel Stereo Low Noise High and Low Tone Pre-Module Amplifier Board ZK-PT1
Bluetooth 5.0 Decoder Board Dual Channel Stereo Low Noise High and Low Tone Pre-Module Amplifier Board ZK-PT1 ৳ 900 Original price was: ৳ 900.৳ 890Current price is: ৳ 890.

DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator

৳ 4,500 Original price was: ৳ 4,500.৳ 4,200Current price is: ৳ 4,200.

⚔ Product Description – Adjustable DC-DC Buck Converter (30A 800W)

  • šŸ”§ Wide Input Voltage Range – Accepts DC 20V–70V, ideal for diverse power setups
  • šŸ“ˆ High Conversion Efficiency – 92–96%, ensuring minimal energy loss during operation
  • šŸ’” Adjustable Output (2.5V–58V / 30A MAX) – Supports precise constant voltage and constant current tuning
  • šŸ” Non-Isolated BUCK Architecture – Reliable step-down regulation for high-power applications
  • 🚫 Input Reverse Protection – MOS tube protects against polarity mishaps
  • 🚨 Overcurrent Protection Indicators – Built-in LEDs signal abnormal current output
  • ā„ļø Active Cooling System – Large aluminum heatsink + intelligent temperature control fan for safe operation
  • šŸ“Š Voltage Difference Mapping – (e.g. Input 70V → Max output 58V; Input 20V → Max output 16V)
  • šŸ” Ripple & Standby Metrics – ≤120mV ripple, ≤70mA standby current (input 24V, output 12V)

 

Add ৳ 3,000 to cart and get free shipping!

Out of stock

Add to wishlist
SKU: X-CX0040A Category: Uncategorized Tags: 800W voltage regulator, adjustable power supply, Bangladesh electronics power module, battery charging power supply, constant current module, constant voltage module, DC 30A converter, DC-DC buck converter, DIY voltage control board, high efficiency buck converter, Mobile Device Power Supply, overcurrent protection PSU, solar LED driver, step-down power module, temperature-controlled fan regulator
Share:
  • Description
  • Reviews (0)
  • Shipping & Delivery
Description

DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator

Features:

1. High conversion efficiency

2. High-power original device, high-power and high-electricity double iron silicon aluminum magnetic ring

3. Anti-reverse connection of the input MOS tube (the input is not afraid of reverse connection) The output is adjustable with constant voltage and constant current

4. There is an output overcurrent protection indicator. There is an output indicator.

5. High-power profile aluminum radiator, intelligent temperature control fan for heat dissipation, high reliability, stable work

 

The main parameters:

Input voltage: DC20V-70V

Input current: 20A max

Output voltage: DC 2.5V-58V

Adjustable output current: 30A (MAX)

Output power: 800W (MAX)

Standby current: ≤70mA (input 24V, output 12V)

Output ripple: ≤120mV (input 24V, output 12V/20A)

Conversion efficiency: 92-96% (different voltage and current efficiency are different)

Circuit structure: non-isolated (BUCK)

Working temperature: -20~60ā„ƒ

 

Instructions for use:

1. The input and output cannot be reversed, and the positive and negative poles of the output cannot be reversed or short-circuited.

2. The maximum input peak voltage cannot exceed 78V. Too high may damage the module. Please use it within the voltage range.

3. The output voltage and current are continuously adjustable with constant voltage and constant current, which can be adjusted counterclockwise to increase and clockwise to decrease, and the minimum current is 1A.

4. When the input voltage of this module is lower than 30V and the output is lower than 12V, the output can be short-circuited without damaging the module. You can use an ammeter to short-circuit the modulated output current (but try to short-circuit at low voltage).

5. When adjusting the output current, you can adjust the current and measure the reference point voltage of the output current with the mV gear of the multimeter. Every 2mV is 1A of output current. Adjust the reference point voltage as much as the current is needed.

6. The two diodes D9 and D10 can be changed to two LED light-emitting diodes, which can be used as constant voltage and constant current working status indicators (can only be changed on the original position of the board, not leaded by wires).

7. When the voltage and current are adjusted by external analog signals, the external voltage signal is 0-5V. Pay attention to the positive and negative poles when connecting. Note: When the external signal is powered, a separate power supply is required, and it cannot share the ground wire with the module, otherwise the module may be damaged.

8. When you need to adjust the external analog signal, you need to remove two resistors. When you need to adjust the voltage, remove R38 (the second resistor behind the voltage signal port), and when you need to adjust the current, remove R46 (the second resistor behind the current signal port). ), at this time, the two adjustable voltage and current are respectively changed into the adjustment adjustment of voltage and current. If the adjustment adjustment is not needed, the adjustable can be changed to the corresponding fixed resistance

9. This module is not suitable for loads with motors and large starting currents.

10. The maximum output power of this module is 800w. When the output voltage is below 26V, the maximum output current can reach 30A. When the output voltage is higher than 26V, the output current is reduced accordingly. This data is for reference only, and the actual use environment and conditions shall prevail.

11. The MOS tube anti-reverse connection and current detection of this module are at the negative terminal (ground wire). When the output requires constant current and current limiting, the negative terminals of the input and output cannot be shared or short-circuited, and must be separated.

12. When using, please add heat dissipation to the module according to different environments and the size of the load.

13. Description of input and output voltage difference:

A: Input 70V, maximum output 58V. B: Input 60V, maximum output 49V. c: Input 50V, maximum output 40V.

D: Input 40v, maximum output 32V. E: Input 30V, maximum output 24V. F: Input 20V, maximum output 16V.

 

The main function:

1. High-power solar street lamp driver

2. DIY adjustable constant voltage and constant current power supply

3. Constant current drive for various LED lighting

4. Solar charging power supply

5. Power supply for vehicles and various mobile devices

6. Charge various batteries

Precautions:

1. When the input and output voltage is higher than 36V, please pay attention to the safety of electricity to prevent electric shock.

2. When working with high current, please tighten the screws of the terminal block.

3. When working, the input and output voltage and current can not exceed the maximum value, so as not to damage the power supply.

4. Pay attention to ventilation and heat dissipation when working with full load for a long time to extend the service life of the power supply.

5. Pay attention to dust and moisture.

List:

Step-down power supply module*1

Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator” Cancel reply

Your email address will not be published. Required fields are marked *

Shipping & Delivery
Bangla
English
Bangla

# ঔেলিভারী ą¦šą¦¾ą¦°ą§ą¦œ ঢাকা ą¦®ą§‡ą¦Ÿą§ą¦°ą§‹ ą¦ą¦° ভিতরে ৬০/- ą¦Ÿą¦¾ą¦•ą¦¾Ā ą¦“ ঢাকা ą¦®ą§‡ą¦Ÿą§ą¦°ą§‹ ą¦ą¦° বাইরে ą¦øą§ą¦Øą§ą¦¦ą¦°ą¦¬ą¦Ø ą¦•ą§ą¦°ą¦æą§Ÿą¦¾ą¦°ą§‡ নিলে ঔেলিভারী ą¦šą¦¾ą¦°ą§ą¦œĀ ą§Æą§«/- ą¦Ÿą¦¾ą¦•ą¦¾, ą¦ą¦ø ą¦ পরিবহনে নিলে ঔেলিভারী ą¦šą¦¾ą¦°ą§ą¦œĀ ą§§ą§«ą§¦/- ą¦Ÿą¦¾ą¦•ą¦¾ą„¤

  • # ą¦¶ą§ą¦§ą§ą¦®ą¦¾ą¦¤ą§ą¦° ঢাকা ą¦®ą§‡ą¦Ÿą§ą¦°ą§‹ą¦Ŗą¦²ą¦æą¦Ÿą¦Øą§‡ą¦° ą¦­ą¦æą¦¤ą¦°ą§‡Ā ą¦øą¦®ą§ą¦Ŗą§‚ą¦°ą§ą¦£Ā ą¦•ą§ą¦Æą¦¾ą¦¶ অন ঔেলিভারীতে ą¦Ŗą¦£ą§ą¦Æ ą¦Øą§‡ą§Ÿą¦¾ ą¦Æą¦¾ą¦¬ą§‡ą„¤
  • Ā 
  • # ঢাকা ą¦®ą§‡ą¦Ÿą§ą¦°ą§‹ą¦Ŗą¦²ą¦æą¦Ÿą¦Øą§‡ą¦° বাইরে ą¦•ą§ą¦Æą¦¾ą¦¶ অন ঔেলিভারীতে ą¦Ŗą¦£ą§ą¦Æ নিতে ą¦šą¦¾ą¦‡ą¦²ą§‡ ą¦…ą¦—ą§ą¦°ą§€ą¦® ১০০/- ą¦Ÿą¦¾ą¦•ą¦¾ ą¦¬ą¦æą¦•ą¦¾ą¦¶Ā ą¦ą¦° ą¦®ą¦¾ą¦§ą§ą¦Æą¦®ą§‡ ą¦Ŗą§‡ą¦®ą§‡ą¦Øą§ą¦Ÿ করে নিতে ą¦¹ą¦¬ą§‡ą„¤Ā ą¦øą§ą¦Øą§ą¦¦ą¦°ą¦¬ą¦Ø ą¦•ą§ą¦°ą¦æą§Ÿą¦¾ą¦°ą§‡ ą¦¶ą§ą¦§ą§ą¦®ą¦¾ą¦¤ą§ą¦° ą¦œą§‡ą¦²ą¦¾ সদর ą¦¬ą§ą¦Æą¦¤ą§€ą¦¤ ą¦…ą¦Øą§ą¦Æ ą¦œą¦¾ą§Ÿą¦—ą¦¾ą§Ÿ নিতে ą¦šą¦¾ą¦‡ą¦²ą§‡ ą¦øą¦®ą§ą¦Ŗą§‚ą¦°ą§ą¦£ ą¦®ą§‚ą¦²ą§ą¦Æ ą¦…ą¦—ą§ą¦°ą§€ą¦® ą¦Ŗą§ą¦°ą¦¦ą¦¾ą¦Ø করতে হবে,Ā ą¦øą§ą¦Øą§ą¦¦ą¦°ą¦¬ą¦Ø ą¦•ą§ą¦°ą¦æą§Ÿą¦¾ą¦°ą§‡ ą¦œą§‡ą¦²ą¦¾ সদরে ą¦•ą§ą¦Æą¦¾ą¦¶ অন ঔেলিভারী হবে ą¦ą¦¬ą¦‚ ą¦ą¦ø ą¦ পরিবহনে যেকোনো ą¦¶ą¦¾ą¦–ą¦¾ą§Ÿ ą¦•ą§ą¦Æą¦¾ą¦¶ অন ঔেলিভারী ą¦¹ą¦¬ą§‡ą„¤ বিকাশ ą¦Øą¦¾ą¦®ą§ą¦¬ą¦¾ą¦°: 01677260792 (Personal-Ā Select ā€œSend Moneyā€ option)

  • # ą¦Ŗą§ą¦°ą§‹ą¦”ą¦¾ą¦•ą§ą¦Ÿą§‡ą¦° ą¦…ą¦°ą§ą¦”ą¦¾ą¦° ą¦øą§ą¦Ÿą¦• ঄াকা ą¦øą¦¾ą¦Ŗą§‡ą¦•ą§ą¦·ą§‡ ঔেলিভারি করা ą¦¹ą¦¬ą§‡ą„¤ ą¦…ą¦°ą§ą¦”ą¦¾ą¦° ą¦•ą¦Øą¦«ą¦¾ą¦°ą§ą¦®ą§‡ą¦¶ą¦Øą§‡ą¦° পরেও ą¦…ą¦Øą¦æą¦¬ą¦¾ą¦°ą§ą¦Æ কারনবশত ą¦øą§ą¦Ÿą¦• শেষ ą¦¹ą§Ÿą§‡ গেলে, আপনাকে তা ą¦•ą¦¾ą¦øą§ą¦Ÿą¦®ą¦¾ą¦° ą¦øą¦¾ą¦Ŗą§‹ą¦°ą§ą¦Ÿ ঄েকে ফোন করে ą¦œą¦¾ą¦Øą¦¾ą¦Øą§‹ ą¦¹ą¦¬ą§‡ą„¤

  • # ą§­ą§ØĀ ą¦˜ą¦Øą§ą¦Ÿą¦¾ą¦° ą¦®ą¦§ą§ą¦Æą§‡ ঢাকা ą¦®ą§‡ą¦Ÿą§ą¦°ą§‹ą¦Ŗą¦²ą¦æą¦Ÿą¦Ø সহ বাংলাদেশের যেকোনো ą¦œą¦¾ą§Ÿą¦—ą¦¾ą§Ÿ আপনার ą¦…ą¦°ą§ą¦”ą¦¾ą¦° করা ą¦Ŗą¦£ą§ą¦Æ ą¦Ŗą§Œą¦›ą§‡ ą¦Æą¦¾ą¦¬ą§‡ą„¤
  • Ā 
English

# Delivery charge is 60 Taka for inside Dhaka Metro and 95 Taka for Sundarban courier outside Dhaka Metro, 150 Taka for SA Paribohon.

# Products can be taken in full cash on delivery only within Dhaka Metropolitan.

# If you want to buy goods on cash on delivery outside Dhaka Metropolitan, you have to pay 100 Taka in advance through bKash.

# If stock runs out due to unavoidable reasons even after order confirmation, you will be notified by phone from our Customer Support.

# Your ordered product will reach anywhere in Bangladesh including Dhaka Metropolitan within 72 hours.

Related products

-34%Sold out

CNC buck-boost module constant voltage constant current 12v impulse 9v24v adjustable buck boost solar charging

৳ 1,200 Original price was: ৳ 1,200.৳ 795Current price is: ৳ 795.
Read more
-45%Sold out

0.28 Inch 2.5v-30v mini digital voltmeter voltage tester meter led screen electronic parts accessories digital voltmeter

৳ 90 – ৳ 110Price range: ৳ 90 through ৳ 110
Select options
Sold out

5g STARS-922 Heatsink Plaster Thermal Grease Adhesive Cooling Paste Strong Adhesive Compound Glue For Heat Sink

৳ 99
Read more
-31%Sold out

6s 15a 24v pcb bms protection board for 6 pack 18650 li-ion lithium battery cell module

৳ 620 Original price was: ৳ 620.৳ 425Current price is: ৳ 425.
Read more
-34%Sold out

5v usb heating element heater film 6 * 20cm for hot feet warmer electric belts for shoe dryer medical care supplies

৳ 450 Original price was: ৳ 450.৳ 295Current price is: ৳ 295.
Read more
Sold out

3S 4A Li-ion Lithium Battery Protection Circuit Board 3 Cell PCB 10.8V-12.6V 3S2P 10.8V 11.1V 12V

৳ 240
Read more
-36%Sold out

Mini digital voltmeter dc 4.5va 30v digital voltmeter panel voltage meter for 6v 12v 24 motorcycle car electromobile 0.56 electrom ‘

৳ 380 Original price was: ৳ 380.৳ 245Current price is: ৳ 245.
Read more
-25%

JSN-SR04T module waterproof waterproof distance measuring transducer sensor for arduino

৳ 760 Original price was: ৳ 760.৳ 570Current price is: ৳ 570.
Add to cart
-34%Sold out

12V 100A 4Series BMS Protection Board with Balancing for LiFePO4 Battery Pack

৳ 1,200 Original price was: ৳ 1,200.৳ 790Current price is: ৳ 790.
Read more
-9%Sold out

Qc3.0 bluetooth 5.0 dc12v fm transmitter multi volt voltage meter monitor dual usb lcd digital voltmeter for car fast chargering

৳ 1,100 Original price was: ৳ 1,100.৳ 1,000Current price is: ৳ 1,000.
Read more
Sold out

Dc 12v pwm 4 wire line fan temperature controller digital control speed regulation for pc fan alarm module board

৳ 340
Read more
-38%Sold out

DC-DC 4.5-32v to 5v-52v xl6009 boost step-up module power supply led voltmeter

৳ 560 Original price was: ৳ 560.৳ 345Current price is: ৳ 345.
Read more
Sold out

PD decoy module PD23.0 to DC DC trigger extension cable QC4 charger 9V 12V 15V 20V

Read more
Sold out

Dual mos battery protection board for 18650 lithium battery for 3 circuit detection diy electronic kit pcb module board

৳ 65
Read more
-24%Sold out

10A LCD Lead-acid Solar Battery Charge Controller Protection Module Board charger Time switch battery capacity DC 6-60V

৳ 690 Original price was: ৳ 690.৳ 525Current price is: ৳ 525.
Read more
-6%Sold out

Right Angle Float Switch Tank Pool Water Level Liquid Water Level Sensor

৳ 165 Original price was: ৳ 165.৳ 155Current price is: ৳ 155.
Read more
Sold out

ESP8266 5V WiFi relay module Things smart home remote control switch phone APP

৳ 480
Read more
-14%Sold out

Outdoor 180 Degree PIR Motion Safety Sensor Detector Switch PIR

৳ 650 Original price was: ৳ 650.৳ 560Current price is: ৳ 560.
Read more

We’re a unique tech company in Bangladesh

Dhalpur, Jatrabari - Dhaka
Phone: (880) 1677-260792
E-Mail: rcgearbd@gmail.com
Recent Posts
  • wood-blog-placeholder
    New home decor from John Doerson
    June 16, 2017 No Comments
  • wood-blog-placeholder
    The big design: Wall likes pictures
    June 16, 2017 No Comments
CUSTOMER SERVICE
  • CONTACT US
  • TRACK ORDER
  • RETURNS POLICY
  • TERMS AND CONDITIONS
  • FREE SHIPPING T & C
COMPANY INFO
  • ABOUT US
  • Privacy Policy
  • WHOLESALE
  • FAQ
  • Our Sitemap
Useful links
  • Facebook Profile
  • Instagram Profile
  • New Collection
  • Popular Products
  • BLOG
RCGEARBD.COM 2019 CREATED BY X-KaziExpress.com.
COD" bKash"
  • Menu
  • Categories
  • Electric Motor & PumpElectric Motor & Pump
    • AC PumpAC Pump
    • Air PumpAir Pump
    • DC Solar PumpDC Solar Pump
    • DC MotorsDC Motors
    • Brushless MotorBrushless Motor
    • Stepper MotorStepper Motor
    • Servo MotorsServo Motors
    • Vibration Motor
    • AC Synchronous MotorAC Synchronous Motor
    • Linear Actuator MotorLinear Actuator Motor
  • Electronic BoardsElectronic Boards
    • Audio AmplifierAudio Amplifier
    • Convertor BoardsConvertor Boards
    • MicrocontrollerMicrocontroller
    • Motor DriverMotor Driver
    • RelayRelay
    • Voltage RegulatorVoltage Regulator
  • Power, Batteries & Solar.Power, Batteries & Solar.
    • Charger & Power SupplyCharger & Power Supply
    • Battery Holder CaseBattery Holder Case
    • Li-Po BatteryLi-Po Battery
    • Lithium iron phosphate batteryLithium iron phosphate battery
    • Lithium-ion BatteryLithium-ion Battery
    • Solar Panel & InverterSolar Panel & Inverter
  • Tools, Kits & LearningTools, Kits & Learning
    • 3D Printer Parts3D Printer Parts
    • Body ChassisBody Chassis
    • CNC PartsCNC Parts
    • Gears - GearboxesGears – Gearboxes
    • Hub - Motor - Wheel CouplerHub – Motor – Wheel Coupler
    • Motor HoldersMotor Holders
    • Plastic BoxPlastic Box
    • Wheels - ShaftsWheels – Shafts
    • Sensor & Wireless ModuleSensor & Wireless Module
  • NEW ARRIVALS
  • SUPER DEALS
  • NEW USER ZONE
Shopping cart
Close
Sign in
Close

Lost your password?

No account yet?

Create an Account
Facebook Twitter Instagram YouTube Pinterest
DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator

DC20V-70V 30A 800W High Power DC-DC Buck Converter Adjustable Step Down Power Supply Constant Voltage Constant Current Regulator

৳ 4,500 Original price was: ৳ 4,500.৳ 4,200Current price is: ৳ 4,200.

Out of stock

Add to wishlist
Home
Menu
0 items Cart
My account