20190117_ICSTATION WIRELESS
Home > Power Module > Step Up/Down Module > Solar Charging Module Adjustable Step Up Step Down Power Supply Module Boost Buck Voltage Regulator

Solar Charging Module Adjustable Step Up Step Down Power Supply Module Boost Buck Voltage Regulator

13397
5 9
$5.99 $4.31
Time Remaining:
- OR - Add to Wish List
1.Description:
    ZK-SJ4 is a DC adjustable constant voltage, constant current step down/up power supply module. Adjustable stable output voltage and current, set output current to meet the demand. It can be used as ordinary buck power supply module, charger and LED constant current driver. Support solar charging.
 
2.Features:
    1>.High voltage resistant terminal.
    2>.Support solar charging.
    3>.Support undervoltage protection.
    4>.Support short circuit protection.
    5>.Support automatic buck/boost voltage.
    6>.Support solar charging.
    7>.Support anti-backflow Protection
    8>.Support charging function.
    9>.Support working status indicator.
    10>.High current, low heat.
 
3.Parameters:
    1>.Product Name:ZK-SJ4 4A Step Down/Up Power Supply Module
    2>.Product Number:ZK-SJ4
    3>.Working Voltage:DC 4.8V-30V
    4>.Output Voltage:DC 0.5V-30V
    5>.Output Current:4A(4A need heat sink;3A is stable for long time)
    6>.Output Power:60W(60W need heat sink;35W is for 3A)
    7>.Conversion efficiency:About 94%
    8>.Working current:30mA
    9>.Undervoltage Protection:Yes(Self-recovery)
    10>.Anti-backflow Protection:Yes
    11>.Short Protection:Yes
    12>.Work frequency:180KHz
    13>.Working Temperature range:-20℃~85℃
    14>.Working Humidity range:0%-95%RH
    15>.Size:68*37*22mm
    16>.Heat sink size:48*16*10mm
 
4.Potentiometer/LED introduction:
    1>.CV Potentiometer:Adjust output voltage. Increase the output voltage when rotating clockwise.
    2>.CC Potentiometer:Adjust output current. Increase the output current when rotating clockwise.
    3>.CC LED:Red LED.Constant current output indicator. It enters the constant current state when the load current reaches the set current and CC constant current indicator turns ON.
    4>.FL LED:Green LED.Charged fully indicator.When battery is charged fully .It will turn ON. It will turn ON if output current is less than 0.2A when the Set Current is 2A(about 10%).
    5>.CH LED: Blue LED.Charging indicator.It will turn ON when charging.
 
5.Using Steps:
    1>.As a ordinary step down power module:
        1.1>.Connect right input voltage at input terminal;
        1.2>.Adjust CV constant voltage potentiometer to set output voltage according to require. 
        1.3>.Rotate CC potentiometer counterclockwise more than 10 turns at first.
        1.4>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
        1.5>.Rotate CC constant current potentiometer clockwise to set output current according to require overcurrent protection value.
        1.6>.Test and using(E.g:Module’s maximum output current is 2A if display 2A on multimeter.Red LED indicator will turn on if output reach to 2A.Otherwise LED is OFF.)
        1.7>.The output voltage will decrease due to the current sampling resistor at the output. The higher the current, the more the voltage is reduced.
    2>.As a charger:
        2.1>.Tops:Power module can not be used as charger module if it does not support constant current function.The voltage difference between the battery with insufficient voltage and the charger is very large.Causes excessive charging current even damage the battery.So it need keep charging in constant current mode to reaching a certain level.Then automatically switch back to constant voltage charging.
        2.2>.Make sure floating charge voltage and charge current for battery.If the lithium battery’s parameter is 3.7V/2200mAh, then the float charge voltage is 4.2V, and the maximum charging current is 1C, which is 2200mA.
        2.3>.Connect right input voltage at input terminal.(Note:Please don’t connect load during set parameter).
        2.4>.Test output voltage by multimeter and adjust CC potentiometer to make sure output voltage reach to require floating charge voltage.(If charge a 3.7V lithium battery, adjust the output voltage to 4.2V)
        2.5>.Rotate CC potentiometer counterclockwise more than 10 turns at first.
        2.6>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
        2.7>.Rotate CC constant current potentiometer clockwise to set output current according to require charge current value.
        2.8>.Connect battery at output terminal and start to charging.
    3>.As a high power LED constant current driver:
        3.1>.Make sure LED working current and maximum working voltage.
        3.2>.Connect right input voltage at input terminal.(Note:Please don’t connect load during set parameter).
        3.3>.Test output voltage by multimeter at output terminal and adjust CV potentiometer to set output voltage to LED’s maximum working voltage.
        3.4>.Rotate CC potentiometer counterclockwise more than 10 turns.
        3.5>.Test Output short circuit current by multimeter at 10A or 20A(Connect two Test Probes to output terminal on module)
        3.6>.Rotate CC constant current potentiometer clockwise to set output current according to require LED working current.
        3.7>.Connect LED and test.
 
6.Notice:
    1>.Input undervoltage protection voltage is 4.2V. Module will self-recovery if input is more than 4.2V.
    2>.Please rotate the CV potentiometer counterclockwise more than 20 turns if there is no output voltage.
    3>.It is a DC power module, so it can not connect to AC power.
    4>.Please connect input before connect battery when use as charge and make sure output voltage is higher than battery voltage.
    5>.’IN-’ and ‘OUT-’ can not be connect together,otherwise module can not support constant current output.
    6>.Please make sure input power is greater than load power.
    7>.Please step down output power if module is hot.
    8>.Please read use manual and description before testing.
 
7.Application:
    1>.Ordinary power supply;
    2>.Battery charger;
    3>.LED drive power;
    4>.Instrument voltage display;
    5>.Test meter;
    6>.Circuit test;
    7>.Power conversion.
 
8.Package:
    1>.1pc ZK-SJ4 4A Step Down/Up Power Supply Module;
    2>.1pc Heat Sink.
 
 

 

There are currently no product reviews.

First we should say that ICStation doesn't accept any form of pay on delivery.Items used to be shipped after receiving the order info and payment.

1) Paypal Payment

PayPal is a secure and trusted payment processing service that allows you to shop online. PayPal can be used at icstation.com to purchase items by Credit Card (Visa, MasterCard, Discover, and American Express), Debit Card , or E-check (i.e. using your regular Bank Account). 



We are PayPal Verified 

 

2) West Union


 

We know that some of you do not have the Paypal account. 

But please take it easy. You can use West Union payment method.
Learn more at West Union at www.westernunion.com.
 
For the receiver info, please contact us at orders@icstation.com.
 
3) Bank Transfer / Wire Transfer / T/T
 

Bank Transfer / Wire Transfer / T/T payment methods are accepted for orders which the total price is up to US$500. The bank will charge about US$60 for the transfer fee if we do the payment in these ways. 

For other payment method, please contact us at orders@icstation.com for more details.

1. Hongkong / Sinapore Airmail

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $3 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. EMS/DHL/UPS Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@ICStation.com

(2) Shipping Time
Shipping time is 3-5 working day (about 1 week) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver in 2-3 day (DHL) or 1 week (EMS,) or 2 weeks (Registered Email), please pay attention to the arriving time of the package. 

Note:

1) APO and PO Box Addresses

We strongly recommend that you provide a physical address for order delivery. 
Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.


3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

Registered Airmail: www.17track.net/en

Customers who bought this product also purchased

433Hhz Wireless RF Transmit Decoding Transceiver Wireless Remote Control Switch RF34T
$6.11
$8.25
26
Universal Adjustable DC to DC Step Down Power Supply Module Buck Converter DC 5-16V to DC 1.25V/1.5V/1.8V/2.5V/3.3V/5V
$1.14
$1.59
29
JDY-40 2.4G Remote Communication Module Wireless Serial Port Transmission Transceiver Module NRF24L01 Wireless Adapter
$0.99
$2.35
58
DC-DC Buck Converter Voltage Regulator DC 9V/12V/24V to DC 5V Car Step Down Power Supply Transformer Adapter Module 2 USB Port Fast Charging Board with Acrylic Shell
$8.63
$11.99
29
Thermostat Digital Temperature Controller LCD Display NTC 10K B3950 Sensor Relay Module
$4.89
$6.99
31
PLL LCD Digital FM Stereo Radio Receiver Module 50Hz-18KHz Wireless Microphone Module DC 3-5V with LCD Display
$9.61
$12.99
26
TEC4056 18650 Charger Module 4.2V Lithium Battery Charger Charging Module TP4056
$2.87
$3.99
29
24Pin XH-M229 Desktop PC Power Output ATX Transfer Board Supply Power Output Connection Module
$5.03
$6.99
29
5pcs Micro USB Mobile Power Lamp 16pcs LEDs Board Emergency Light SMD 5730 Super Bright White Lamp Light Module
$3.00
$3.75
New USB to TTL Serial Cable Adapter FTDI Chipset FT232 USB Cable
$6.42
$8.03
Colorful LED Tower Display Rhythm Lamp Light with Infrared Remote Control Electronic DIY Kits Brain-training Toy
$13.25
$16.99
DC-DC 5A Step Down Power Supply Module LCD Display Constant Voltage Constant Current Adjustable Buck Converter CVCC Adapter
$6.90
$9.59
29

Your Recent History

Solar Charging Module Adjustable Step Up Step Down Power Supply Module Boost Buck Voltage Regulator
$4.31
$5.99
28