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Connection Ports:
IN + IN- input input positive and negative!
The positive output OUT + OUT- output negative
Input voltage range: 3.2V to 46V DC is recommended to use in 40V! (Must be greater than the input voltage to output voltage higher than 1.5V. Can not boost)
Output Voltage Range: 1.25V to 35V DC voltage is continuously adjustable, high efficiency (maximum 92%) of the maximum output current of 3A.
Found 12V input, load regulation 5V 1A output current is lower than 1%
Note: This is a step-down module, the input voltage is higher than the required output voltage.
Output 2A or less long period of time without additional heat sink output current is greater than 2.5A (or output power greater than 10W) to work long hours please add heat sink
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ราคา 100 / ลทบ.30 /EMS 50 --------------------------------------
Adjustable Step-Down Power Module 8A 24V to 12V LED Driver Constant Current Charge 7-40V to 1.2-35V DC Converter #200395
Featrure:
•Module Properties: non-isolated step-down module (Buck) Constant current, constant voltage module (CC CV) charging module
•Input voltage :DC 7-40V
•Output voltage: DC 1.2-35V (adjustable)
•Output Current: 8A-9A ( when power tube's temperature exceeds 65 degrees, please add cooling fan )
•Turn lamp current : constant current value * ( 0.1 ) , turn the lamp current and constant value linkage, such as constant current value is 3A, turn the lamp current is set to a constant current is 0.1 times (0.1 * 3A = 0.3A).
•Output power: maximum power of about 300W, power tube temperature exceeds 65 degrees please add fan.
•Conversion efficiency: 95% (the higher the voltage, the higher the efficiency)
•Output Ripple: 20M-bandwidth Input 24V Output 12V 5A ripple around 50mV (excluding noise)
•Operating Temperature: Industrial (-40°c to +85°c) The actual use of note power tube temperature, high temperature and please strengthen heat)
•Full load temperature rise: 45°c
•No-load current: 20mA typical (24V to 12V)
•Voltage regulation: ± 1%
•Load regulation: ± 1% (constant voltage)
•Dynamic response speed: 5% 200uS
•Dimensions: 65 x 47x 23.5 mm
•Short circuit protection: Yes
•Input Reverse Polarity Protection: None (Please Series diode at the input port.)
•lowest differential pressure: 1V
•Operating frequency: 180KHZ
•precision of constant current and temperature: the actual test, module temperature from 25 degrees to 60 degrees, the constant current value is less than 5% (constant current value 5A)
•dynamic response speed: 5% 200uS
•Potentiometer adjustment direction: clockwise, counterclockwise (increased) (reduced) close to the input potentiometer for voltage regulation (CV), close to the output of the potentiometer is current regulator (CC)
•Indicator: the double color indicating lamp, light red charging, after charging indicator green (no load of green)
•Input reverse connection protection: No,
•Output to prevent reflux: No.
•Connection: connecting terminal
Scope of application:
•high power LED constant current drive, rechargeable lithium batteries (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery, NiCd and NiMH batteries (battery) charge, solar panels, wind generators
Battery charging method:
1 determine the float voltage you need to charge the battery and charging current, input voltage module;
2 adjustable constant potentiometer, the output voltage is regulated to 5V.
3 multimeter 10A current block measurement output short circuit current, and adjusting the constant current charging current potentiometer output current reaches a predetermined value;
4 adjustable constant potentiometer to the output voltage to the floating charge voltage;
5 battery charging, test.
(1, 2, 3, 4 steps for the module input power, output no-load not connected with the battery.)
LED constant current driving method:
1 to determine the current you need to drive LED and maximum working voltage;
2 adjustable constant potentiometer, the output voltage is regulated to 5V.
3 multimeter 10A current block measurement output short circuit current, while regulating constant current potentiometer output current up to LED working current of a predetermined;
4 adjustable constant potentiometer to the output voltage to the LED maximum working voltage;
5 connected to the LED, the test machine.
(1, 2, 3, 4 steps for the module input power, output no-load not connected with the LED lamps.)
XL4016 8A CC CV DC step-down buck charger/LED driver converter module testing
ราคา 250 / ลทบ.30 / EMS / 50 -------------------------------
1: The new United States imported chips, definitely not homemade chips, disassemble chip.
2: The maximum output current of 3A, the long-running 2.1A, sufficient margin.
3: The new design, circuit design does not require electrolytic capacitors and tantalum capacitors (electrolytic capacitor life is short, there is a risk of explosion tantalum capacitors). Now with the use of high-end large-size solid ceramic capacitor circuit (MCC) 3
Very low ripple, 12V switch 5V 3A only about 10 mV ripple many peers have reached 500 mV or greater, the device will cause an invisible injury, severe can cause fault or damage.
4: The new program uses synchronous rectification circuit conversion efficiency is very high, in turn 5V 0.7A 6.5V when efficiency up to 97.5%, 12V turn 5V 1A when it reached 94%, unlike some peers only 60-70% efficiency . (Efficiency test removed the input reverse polarity protection diode and fuse drop).
5: Using flat copper inductors, maximize conversion efficiency. Reduce heat.
6: The whole network first with output overvoltage protection, input fuse has 1.5A, 5V output of 300W TVS has done a pressure pipe clamp protection, protect USB devices.
7: Using the latest USB identification circuit.
8: Short head gilded boundless USB, long service life, not ordinary USB interface can be compared.
9: Output voltage indicator (red)
10: Ultra-small size, 26.4 (L) * 15 (W) * 7.4 (H) mm, the smallest of the whole network.
11: inputs with reverse polarity protection diode, the positive and negative input will not reverse damage (We tested the efficiency of ignoring the input diode and fuse drop)
12: ultra-low quiescent current, 0.85 mA quiescent current. Connected to the car battery without adding switches can be connected in a cigarette lighter line, or ACC power line cord.
aeProduct.getSubject()
Module Properties: non-isolated buck module (BUCK) synchronous rectification
Input voltage: DC 6-24V
Output voltage: 5.1-5.2V
Output current: 3A MAX
Conversion efficiency: can up to 97.5% (6.5V step down to 5V 0.7A) (after short reverse protection and fuses test value)
Switch frequency: 500KHz
Output ripple: 10mV around (12V to 5V3A) 20M bandwidth
Output indicator: Output voltage indicator is red
Operating temperature: Industrial grade (-40 Celsuis to + 85 Celsuis) (the higher the ambient temperature, the lower the output power)
Output overvoltage protection: Yes, input 1.5A fuse, output 5V have 300W TVS tube clamp protection.
Full load temperature: 30 Celsuis
Static current: 0.85 mA
Load regulation: ± 1%
Voltage Regulation: ± 0.5%
Dynamic response speed: 5% 200uS
Output short circuit protection: Yes, but please do not short circuit for a long time
Input reverse polarity protection: Yes, there is reverse polarity protection diode
Connection mode: Welding
Input mode: Welding
Output mode: US
aeProduct.getSubject()
1 pcs 5V USB Module
ีราคา 100 / ลทบ.30 /EMS 50---------------------
