Category

MPPT controller

Click: 342    Date: 05/31/2023 08::51::35 AM

An MPPT controller is a sophisticated electronic device that monitors the power output of a solar panel system and adjusts the output voltage and current to maximize power transfer. MPPT controllers work by tracking the maximum power point (MPP) of the solar panel system, which is the voltage that yields the highest output power from the panel. By continuously monitoring the system's power output, MPPT controllers can adjust the load to ensure that the system operates at its maximum output power.Benefits and Features:MPPT controllers offer several benefits and features that make them a popular choice for solar energy systems. Some of these include:- Improved Efficiency: MPPT controllers can improve the efficiency of a solar panel system by up to 30% compared to traditional charge controllers.- Flexible Design: MPPT controllers are designed to work with various types of solar panels and battery systems, making them a versatile choice for solar energy applications.- Advanced Monitoring:Such as real-time performance data and fault detection, which enable users to diagnose and fix issues with the system quickly.- Battery Protection: MPPT controllers safeguard the battery system by preventing overcharging or discharging, which can extend the lifespan of the batteries, reducing operational and maintenance costs over time.Applications:MPPT controllers find widespread use in various solar energy applications, including:- Off-grid residential and commercial solar systems- Solar lighting and water pumping systems- Solar-powered electric vehicles such as boats and RVs- Industrial and utility-scale solar power plantsIn conclusion, MPPT controllers are essential devices that aid in optimizing the power output of solar panel systems. With their advanced features and flexibility, they offer an efficient and cost-effective solution for individuals and businesses looking to reduce their carbon footprint and energy costs.

The functions of High Frequency Inverter

Click: 538    Date: 09/07/2022 5::02::32 PM

This product can flexibly set AC-dominated power supply and DC-dominated power supply (such power supply form can be switched through LCD panel or communication background software):1.When there is mains, AC-dominated inverter power supply is under mains output mode; in case of mains fault, AC inverter power supply automatically switches to inverter output.2.DC-dominated inverter power supply is under inverter output mode during normal operation, and automatically switches to mains by-pass output during the occurrence of DC input fault.

Hot product of our company

Click: 498    Date: 09/07/2022 5::01::18 PM

For us, 2020 is both a special year and a harvest year. We received a large number of orders this year.Now, I want to recommend a hot-selling product to you!as below:Portable power inverter with LCD display1. Input Voltage :12Vdc/24Vdc/48Vdc/60Vdc /72vdc2. Output: 110Vac/220Vac 60/50Hz3. Rate Power :300W/600W /1000W/1500W/2000W/3000W/4000W/5000W4.Peak Power : 600W /1200W/2000W/3000W/4000W/6000W/8000W/10000W5. Pure Sine wave Inverter6. With Digital LCD Display (Input Battery ratio, Temperature , DC input voltage , Output power, Load ratio, output frequency and alarm information ) For more information, please click:https://www.ykpowersupply.com/product_show.asp?id=4712 If you have any interesting, please feel free to contact with us.

Adjustable DC Power Supply FAQ（1）

Click: 488    Date: 09/07/2022 5::00::00 PM

Question: What does it mean temperature controlAnswer:1. Temperature control means the fan of cooling fan control by temperature2. When the internal temperature is high and fan will start rotation, after temperature drop and it will stop working3. The internal cooling duct is right into left out4. Please Keep the power supply should be maintained around the convection air flow during operating Question: How to define the input cableAnswer:1. Red – Wire cable2. Blue – Nero cable3. Green /yellow- group cable Question: How to avoid damage to the equipment voltage overshootAnswer:1. Adjust the "V.Adj" potentiometer to minimum first; for insurance purposes, should be the first "A-Adj" pre potentiometer to minimum also2. Please switch off when you connect the loadNote:If the output voltage value preset to 20% or less, you should check the power overshoot voltage exceeds the allowable range or not in firstlyFor exampleA. Before connecting load with the adjustable dc power supply , or pre-adjusted output voltage, or to "V-ADJ " and "A-ADJ" pre-all to minimum, the boot process is repeated several times to check whether the RANGE of the output voltage overshootB. When the confirmation overshoot voltage does not exceed the maximum allowable range then It can Connected load and bootC. After confirm the start-up and stable then adjust to the refer voltage value you need Question : Does all specification of the adjustable dc power supply with the same dimension ?Answer:1. No , different specification with different dimension and different case2. 1000W 240*68*210 3.5kg3. 2000W 253*68*268  4.5kg4. 3000-4000W 300*78*370  8.5kg5. 5000W-10KW 255*176*540 16.5kg6. For more bigger power , the dimension and weight will base on the output voltage and current Question : Does the DC Power Supply support wide range input ?Answer:  1. No. our dc power supply design did not support wide range input2. It is support input voltage as belowSingle phase 110VAC+/-15%，Single phase 110VAC+/-20%，Single phase 220VAC+/-15%，Single phase 220VAC+/-20%，3 phase 380VAC+/-15%，3 phase 380VAC+/-20%3 phase 415VAC+/-15%，3 phase 415VAC+/-20%3 phase 450VAC+/-15%，3 phase 450VAC+/-20% Question: Will the adjustable power supply input voltage and price have any relationship ?Answer:  1. Yes2. Output power ≤4000W,  we recommend use single phase voltage for input. If the adjustable dc power supply less then 4000w but request 3 phase voltage for input , the price should be add 60.00USD Per unit3. Output power ≥4000W,  we recommend use 3 phase voltage for input. If the adjustable dc power supply less then 4000w but request Single phase voltage for input , the price should be add 60.00USD Per unit4. No matter how much power output of adjustable dc power supply , if request input voltage for 110VAC , the price should be add 60.00USD Per unit Question : How to connection for the remote control terminal/ DB9 Port?Answer:1. External (0 ~ 5) V analog voltage regulating signal, which common terminal and the negative output terminal is in communication with the interior2. Use should pay attention to "common ground" of interference and potential matching problems, you should use isolated floating of (0 ~ 5) V analog voltage signal driving source.3. As picture show Question : Does the adjustable power supply has fuse protection inside?Answer:1. Yes2. When Input current too higher the fuse will blowout but it is not affect the protection for output of over current Question : What kind of power supply modules does the adjustable power supply consist of ?Answer:1. Transformer, rectifier module, filter and regulator circuit.2. With transformer to make power grid voltage transformer,  the rectifier circuit is used with unidirectional conductivity of rectifying element to make alternate sinusoidal ac voltage ripple voltage of the rectifier become single direction. Filter is used as much as possible filter out the ripple component of unidirectional voltage ripple, get a more smooth dc voltage.The regulating circuit is to take some measures to make the output dc voltage remained stable in power grid voltage or load current changes. Question : Can I changed the larger capacity transformer to improve the capacity of the power supply when I found the model I had bought is too small to start my load?Answer:  1. Yes,2. For example, you had YK-AD1280 with 12vdc 80a dc power supply, but you need 15VDC 80A finally. Firstly, we suggest you buy the transformer from Yucoo, and you have to make sure that your engineer can make this well, if not, the original power supply may damaged. And one more ware notice, please do tell your whole application to the sales before you make order, make sure the model is ok for you. Question : what is the main problem when start up the dc power supply and CC Indicator ON >Answer:1. It means the power supply under protecting2. Please Check whether the A-ADJ potentiometer to minimum and check whether it had be loss or broken Question : For example, Mode YK-AD2430 0-24vdc 0-30a adjustable DC Power Supply use to charge 2V Lead acid battery. But when the voltage set at 2VDC , The CC indicator ON , when we want to adjust the voltage up , it can not work any more and without display . What is the main problem and how to solve it?Answer:We can do following . 1. Connect with your battery and  set at 2.5A output, then adjust the current to the current you need to charge2. Then Check whether it is okSelf check of the Adjustable DC Battery charger as following1. TURN OFF The power supply 2. Use Wire cable and connect "+"& "-" together , and make short-circuited3. Adjust the voltage to the min and current to the max 4. Turn on the power 5. Adjust the voltage in slowly , check the current can get the max output 30A or not ? If yes, mean the power supply in good condition and you should be check what is the actually voltage need to charge for your battery

Adjustable DC Power Supply FAQ（2）

Click: 294    Date: 09/07/2022 4::58::34 PM

Question : Can add external control voltage to control the analog input voltage?Answer:1. Yes2. We often add 0~5V,0~10V external voltage to control the analog input voltage Question : How to check the power supply works well or not?Answer:  1. Step1: Empty the load - connect the power - to see the voltage can be regulator from 0 to the maximum voltage or not;2. Step2: If the result of Step 1 test is that it is yes, and that we continue to step 3, if the result of step 1 is not possible to determine the power supply is broken;3. Step3: Connect the power artificially shorted - off shorting the output, and the current potentiometer to spin to a minimum, and then turn up the boot, to see if there are any change of the current ammeter;4. Step4: connected to the load, take a look at the current is not able to adjust from 0 to maximum current, if not, that power is broken, if you can, you can determine the power supply is not the problem, check the load whether it is appropriate to use for the power supply Question : Why the power supply will be trip even we connect the load or no load?Answer:  1. It may be because the internal chassis rectifier bridge has been broken.  2. First test input file ends with OHM multimeter, if there are no short circuit, short circuit if all we can conclude that the rectifier bridge has been broken, the device needs to be returned to the manufacturer to replace the good bridge rectifier. Question: Does the external remote control port can design with DB9 Port ? Answer:  1. Yes2. The external remote control port , we have DB9 Port and Terminal connection for option3. As picture shows Question: For the external remote control Signal can control the output voltage only ?Answer:1. No2. Base on the request of user , our external remote control Signal can control the current and voltage in separate or simultaneously3. We offer the 0-5vdc or 0-10vdc remote control Signal in usually4. Other remote control Signal can be customize according to the customer request Question: What is difference between internal and external control signal?Answer:1. The internal control signals is connected internal potentiometer with corresponding voltage and current signals in main board to adjust and control the output2. The external control signal is supplied by two external 0-5V analog signal corresponding to the main board voltage and current signals to adjust and control the output Question: Can we make all output settings by hand-operated?Answer:1. YES2. There is a potentiometer, we can through the potentiometer knob to adjust the current and voltage. Question: Can we make Negative output?Answer: 1. Yes2. We can make negative output. Such as -30VDC. It is has the same appearance to 30VDC ,while just make the power wiring connecting reversed Question: Can you add PFC function?Answer:  The Yucoo power supply comes with the FC function. Question: If the end user CITY Power is 240VAC+/-15% but our power supply design is 220VAC+/-15%, does it still can working well ?Answer:1. In usually , it still can working well2. As our power supply support work at 240-250VAC all the time3. But if the power more than 240-250VAC and running all the time , the power supply will be broken soon4. The solution is add over or lower voltage protect function on the input of power supply Question: Does the power supply will be test in full load before shipping ?Answer:1. Yes2. The statement about all of our adjustable dc power supply have all been full load and 50% load were aging before shipping for 2-8 hours3. If the power more than 3000w, the ageing time will be more longer , about 12-15hours Question: Does Positive and negative output can switch in auto or manual? If yes, what is the Switching interval time ? is it control by a switch or by time relay ?Answer:1. It is control by time relay in auto2. The buyer should be confirm to us before purchase for how long you want to switch3. For example, if you want to switch Positive and negative output 1s. then we can set it before factory Question: Can do the adjustable power supply with high voltage but small current ?Answer:1. Yes.2. We can customize the voltage specification according to customer’s request.3. For example:  0~700V, the output current can be 0~3A.4. Otherwise, If the current is too big, very low voltage is also OK. Question: Does the power supply comes with CE?Answer:  1. NO.  2. All of the Yucoo power supply are customized under different client request, it is really different for it to pass CE. Question:What does the meter shows?On the picture it shows 4 digits display l output, can you show 1.111A and 1.111V?Answer:There have 2 meter , one is for output voltage another for output currentFor example model YK-AD15010The output voltage show only 1-150v, current 1.0-9.9ASome special design can customized base buyer request Question: Can it make 19inch rack mount typeAnswer:  1. Yes2. we can make standalone type or 19inch rack mount type according customer request Question:What is a variable power supply?Answer:A variable power supply also called a adjustable dc bench power supply, is one where you can continuously adjust the output voltage and current to you requirements.In another word, it is 100% constant current and constant voltage, you can adjust to any voltage or current as your require Question: Could you offer Form A or C/O ?  Answer:  It is totally no problem. We can prepare relative documents to foreign affairs office or other office to apply for this certificate but if the order less than 10000.00USD , Buyer should be pay 60.00USD to get it

Step down and boost DC DC Converter FAQ

Click: 449    Date: 09/07/2022 4::56::42 PM

Question： Regard as constant voltage and constant current DC-DC ConverterAnswer:A. Constant voltage DC-DC ConverterFor example:1. 24vdc-12vdc 10A, 12vdc output is fix, but the current output is automatic adaptive base on the load.2. If you connect the load not work at 12vdc , the dc converter will be burnB. Constant Current DC-DC ConverterFor example:1. 24vdc-12vdc 10A , 10A output is fix, but the voltage output is automatic adaptive base on the load.2. If you connect the load not work at 10A , the dc converter will be burn Question：Isolated & non-isolated DC-DC ConverterAnswer:1. Isolated DC Converter is no any interference, it is suitable for sophisticated equipment and there is no any ripple2. Isolated DC Converter with ripple3. DC –DC Converter we design is non-isolated Question：Step down & Boost & Automatic Step down and Boost DC-DC ConverterAnswer:1. Step down DC-DC Converter-- Input voltage must be more than 2V/more of output voltage2. For example:24Vdc to 12Vdc 10A3. Boost DC-DC Converter-- Input voltage must be less than 2V/more of output voltage4. For example :5Vdc to 12Vdc 10A5. Automatic Step down and Boost DC-DC Converter--- output voltage between the input voltage range6. For example: 9-14Vdc to 12Vdc 10A7. When 9VDC Input, it can support output 12V; When 14Vdc input, it can support output 12Vdc also; input voltage between 9-14V constantly beating the same can be stabilized output 12V; Question:  Can you customize USB dc dc converter?Answer:Yes. Question:  Can you customize multi-output dc dc converter?Answer:  For now, because of the Yucoo dc dc converter’s design and it’s capacity, we can make 2-channles as max output. Questions: What is the difference between the PCB case type and the Aluminum case type?Answer:1. Aluminum case type is waterproof2. The PCB case type is non- waterproof, but with Lightweight. Question: Can you make the dc dc converter with adjustable output volatage?Answer:NO.  We can only make it stable output. Question: Can you make the dc dc converter with adjustable output current?Answer:1. NO.  2. We can only make adjustable output current mode.  3. For example one 0-10A model dc dc converter,  if you connect with right load, all things will goes well. No need to make stable output. Question : Can make Automatic Step up and down voltage dc converter?Answer:1. Yes.2. We can customize 12V-12V &24V-24V Automatic Step up and down voltage dc converter Question ：What is the biggest power you can customize for this small size dc converter now?Answer:360W.The biggest power we can customize for this kind product is not more than 360W. Question ：Can this kind dc converter add USB port?Answer:Yes. Just add 0.2 USD each one, such as: 1.MICRO port( for intelligent phone) 2.USB female port （need connect power cable)Question:  Does this kind dc converter has reverse polarity protection on input?Answer:1. No.2. We don’t have it ,but we are trying to achieve. Question ： All of your dc converter is the same appearance?Answer:1. The material has two different kinds: Aluminium and plastic shell2. Aluminium shell is water proof, Plastic is not.3. This two materials converter each has three kinds: large size,middle side,small size .different output power has different shell.Question: what does the step down and boost dc converter will apply forAnswer1. Our products are widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields. If you can not find a suitable model,2. our technical engineers will be based on your actual needs, corresponding to the rapid power solutions. I hope that we can become a long-term partners.  Question: what kind of protection function of the step down and boost dc converter have?Answer:1. Overload protection2. Over-current protection3. Over / low voltage protection4. Stable performance5. Automatic recovery work6. Fully waterproof potting7. Ripple: 40MV8. Working temperature: -40 to +85 (industrial grade temperature)9. Widely used in LED car display, GPS navigation, MP3, MP4, car DVD, hard disk player, stereo, power is the best choice for vehicle equipment10. Wiring as follows: Input: Red (+) Black (-)11. Output: Yellow (+) Black (-) Question: Does the dc converter support running in full load?Answer:  1. NO , All of dc converter did not work in full load2. The Efficiency≤80%3. For example :  Model YK-DD12S2412 --12VDC-24VDC 12A DC Converter , it can support running 240w 7*24hours Question: Does ALL of the dc converter support running in full load?Answer:1. NO2. Not all the design are Waterproof, you should be confirm before purchase with our sale department3. Waterproof : IP68 Question: Does ALL of the dc converter with anti-interference filtration and TVS(1500w) function?Answer:  1. Yes, All of the dc converter with anti-interference filtration and TVS(1500w) function2. Please noted

New Product Recommendation

Click: 573    Date: 09/07/2022 4::54::05 PM

Thank you for taking the time to read about our new product recommendation. We believe that our MPPT controller can satisfy you. Products Features：1. Advanced MPPT technology2. DSP chip control3. Multiple protections4. LCD+LED display 5. 12 months warranty 

19inch Rack Mount Type DC-DC Converter FAQ (1)

Click: 515    Date: 09/07/2022 4::53::05 PM

Question: Does the DC-DC converter can be AC input or output?Answer:1. No.2. DC-DC converter just can be the type of DC input and output. Question:  Does the output is isolated ?Answer:1. Yes2. All of the Rack mount type is isolation output. Question : Can it add Monitor？Answer:1. Yes.2. The red point is the monitoring unit that added. The price is changed according to different monitor function. Question ：How to control the output voltage?Answer:1. There is two kind ways.2. It is automatic control and handling control. If handing control.there will be a potentiometer to adjust the output. Question :  Can DC DC converter add external control voltage?Answer:1. Yes.2. For example. To add 0~5V external control voltage. Question :  Can you make DC adjustable output dc dc converter?Answer 1. Yes2. we can add the add the adjustable resistance when production, and we can handle adjust the output, but the unit price will be more, you can come to the sales for more information about the specification and price. Question : can you make the multi-output dc dc converter?Answer 1. Yes,2. but for now, we can only make double output type, you can contact the sales for more information about the specification and the price. Question: Can you make the dc dc converter as desk type? As we know, all of the dc dc converter you show in the website is the 19Inch rack mount type.Answer 1. Yes.2. Normally we can customize it as desk type when the model capacity is less than 500W. You can contact the sales for more information about the specification and the price. Question : What is the mode of connection of the dc dc converter?Answer Terminal connection Question : can you make parallel operation in one dc dc converter?Answer：1. Yes2. Such as if you make two unit of 30A model,  you will finally get 60A model after you make parallel operation. Question ：what is the output circuit in dc dc converter?Answer 1. It is the same as the in the output channels2. Such as the YKDD12S4810 model with 12vdc input and 48vdc 10A output, if you want to make it with 5 channels output, each channel is 2A. Normally, we manufacturer will make 2 channels if the end users do not have special request. Question ：What is the communication mode of the dc dc converter?Answer RS232 and RS485 and RJ45 optional. Question ：What is the heat-dissipating method of the dc dc converter?Answer it is refrigeration. Question ：Can you make AC/DC double input?Answer 1. Yes,2. 220vdc and 220vac double input, Ac and dc electrical isolation completely