Inside the calipers are the brake pads. UNTIL he met a reclusive tribe of near mythical athletes at the bottom of a Mexican canyon, Micah True could never figure out why his running injuries got worse as his running shoes got better. People forget all the things she has to hear and she has heard. We actually strive to perfect, or at least satisfactorily master, one thing. This will help you to teach your students better. Terry has written for local sports publications in the Memphis, TN area. While I still worry about what I eat, and my weight (I only 5 and 40lbs on me is a lot more than it is on someone who is only 3 taller), I love not feeling guilty about eating. The final rule also highlights (without changing) the existing consequences if an employee does not provide proper notice of his or her need for FMLA leave.. And they can't move his body.

cheap wholesale lots

Hence, her satirical look at New Age culture.

cheap NBA jerseys

The UC regents, in a closed door meeting, approved the proposed settlement payment to 21 UC Davis students and alumni who sued the university and contended their civil rights were violated in the widely criticized pepper spray incident. Flip flops meet exercise machine in the trim treads. wholesale cheap jersey The solid foundation that we've built over the last several years are really going to enable us to maintain our progress against our long term targets, and importantly, allow us to continue to deliver shareholder value as we report another good year in 2014.. I was quite young at the time, but I remember thinking, "Well, a person who couldn't tie their laces just wouldn't wear shoes with laces, surely." These days I actually know a couple of people born without arms and hands, or who otherwise don't have the use of them, and guess what? They don't wear shoes with laces. Brian AtwoodThis American shoe designer and model who is from the Chicago suburbs, started out loving fashion at a very young age. Another player, Tristan Thompson he's a Canadian kid, went to high school in the United States, went to college for a year in Texas, and now he's making a name for himself on this big stage of the NBA playoffs. Circulation is important to us the CEO expects to be interrupted as he walks up the stairs. Right now, the Kerry talks are hardly ready for prime time, and until they're much farther along Obama should keep his distance.. I wonder if you think that might be part of it.. The Distance Racer is designed for use during races and triathlons, but is stable and cushioned enough for long distances, such as marathons.
Home / Voltage Regulator / Buck Converter / DP50V5A Numerical Control Step Down Voltage Regulator Stabilizer

DP50V5A Numerical Control Step Down Voltage Regulator Stabilizer

180081 DP50V5A DC numerical control regulated power supply is an adjustable step down module that integrates analog integration and numerical control. This module adopts STM32 single-chip microcomputer and the synchronous rectification IC as main control chip, which ensure the high efficiency of the module and raise/reduce the voltage instantaneously in case of no load. Using MOS anti-reversed connection protection circuit in the input not only protects the product but also effectively reduce the power consumption. What’s more, in order to reduce the output ripple and the interference to the power supply, the module adopts a 63V100UF solid capacitor and a 63V/470UF filter capacitor parallel connected in the input. In the output, it adopts a 50V/220UF solid capacitor and two 63V/470UF filter capacitors.
180081_14

Facts speak louder than the words. The following is the test result of the output ripper and the accuracy , which is tested by professional equipment.

Firstly, we adjust the output voltage to 24V, then use oscilloscope to test the output ripper when the output is 24V0A. From the image, there is no high fluctuation.

1

When the output current is adjusted to 5A, the ripper become more intensive but no high fluctuation.

According to this testing result, the output ripper of the module is very low.

2

Here is the testing of the accuracy of the output voltage.

Firstly, adjust the output voltage to 0.07V, then we can see that the DC electronic load display 0.08V, which the error is small.

3

When the output voltage is adjusted to 23V:

4

The last but not the least, the following is the using experience shared by Tom Stiles. Great thanks for his sharing.

This device fits a need I have for a variable power supply. I have a number of fixed output power supplies that I used with my amateur radio equipment but needed a variable supply. First the physical format was just what I was looking for. It is small (4.2 x 2.7 x 2.4 inches) yet the display is large enough to easily read. The case has tabs on the side so that it can be mounted in a box or cabinet without having to use any mounting hardware. The connector are properly located so that connecting it up is very easy. It has a lot of options for setting the voltage output and current. Setting these parameters is quite easy and can be done quickly. There is a button to turn the output of this device ON or OFF. The input can vary from 6-55 Vdc and output of 0-50 Vdc. You can read the other parameters in the ad above. When the dc to dc converter is used to charge a battery or to be capacitive load, it must be in series with a diode, or the module will be damaged. A power diode is included in the kit for this purpose. Below are some of the measurements I recorded.

Input voltage = 18.8 Vdc

Load was a 10 ohm 1% 5 watt resistor

 

Test 1:

Output set to 9.10 Vdc at 1.0 Amps

Measured output: 9.07 Vdc at 0.887 Amps on device display and 9.01 Vdc on separate meter

 

Test 2:

Output set to 5.00 Vdc at 1.0 Amps

Measured output: 4.99 Vdc at 0.491 Amps on device display and 4.94 Vdc on separate meter

 

Test 3:

Output set to 2.50 Vdc at 1.0 Amps

Measured output: 2.49 Vdc at 0.243 Amps on device display and 2.48 Vdc on separate meter

 

Test 4:

Output set to 8.00 Vdc at 0.40 Amps (for contant current)

Measured output: 4.07 Vdc at 0.40 Amps on device display and 4.00 Vdc on separate meter

 

Test 5:

Output set to 8.00 Vdc at 0.50 Amps (for contant current)

Measured output: 5.08 Vdc at 0.50 Amps on device display and 5.01 Vdc on separate meter

 

Test 6:

Output set to 8.00 Vdc at 1.0 Amps (for contant current)

Measured output: 7.98 Vdc at 0.78 Amps on device display and 7.96 Vdc on separate meter

 

Note that the voltage and current can be adjusted to give the desired outputs more accurately.

 

I was very pleased with its performance.

——— Tom Stiles

 

 

Check Also

The Modification for the Latest LCD CC CV Regulator By Customer Feedback

With voltage and current LCD digital display, no need extra multimeter, convenient and powerful. The …

14 comments

  1. I use this mainly to charge batterys , when using the diode I get a volt drop eg. Output to diode 13.6 output from diode 12.4 can I remove this diode that acts like a volt dropper ?

    • Hello John Day,
      Thank you for writing in.
      Do you mean you do not want this module step down the voltage?
      So sorry that we are not sure what the diode is.
      Could you please send us an image to let us check it.
      With your help, we can find a solution more quickly.
      Best regards

  2. I need to set it to always on, so it can output voltage, as soon as it connects to input, without pressing the power button.

    • Hello, Max
      Thank you for writing in.
      Regarding to your question, we are sorry that it can’t be always on.
      Hope you can understand.
      Best Regard

  3. I have a PV Solar 48 Volt battery bank, which can reach about 60v when charging. I want to connect a 12v, 5 amp blower motor to the 48 volt battery bank. I need to step down from the max voltage (60v) to the 12 volts the motor can handle. will this product work for me?

    • Dear Brian,
      We’re very sorry for the inconvenience has caused on you.
      And we’d really like to help you with this matter.
      But now our technical staff are off for our Chinese Lunar New Year’s holiday– the Spring Festival, starting from 1/27/2017 until 2/3/2017.
      So could you mind waitting for a couple of days? And we’ll get back to you ASAP when coming back to work.
      Hoping you could understand this.
      Please not to worry, we’ll work out the solutions to solve your concerns by then, and eveything’s gonna be okay!
      Thank you again.
      Happy a great day!
      Best regards,
      DROK Customer Service

      • No Problem. I’ll wait your reply.

      • The Battery bank I want to step down from is 48V (55V DURING FLOAT CHARGE). The amp hr rating is 200Ah. I need to step down from the 48v (55v float charge) to 12v. I would be running about 5 – 12 amps on the step down end.

  4. This is a great value for the hardware!

    Any plans to release the STM32 firmware source code so people can customize the operation?

    I would love to make mine into a variable current source where the know directly controls the current level.

    Thank you!

    -josh

    • Hello josh,
      Thank you for writing in.
      We sincerely appreciate your review and your suggestion.
      We will write down your suggestion and think about it when we are try to improve our product.
      Thanks a lot!
      Best regards.

  5. Hi DROK,
    I am using this in United States. Does this product has any certification like UL or CSA? If not, would you have a equivalent component which has that kind of certification.
    Thanks

    • Hello Devesh Chugh,
      Thank you for writing in.
      We are sorry that we are a small and growing company, we are still trying to apply for relevant certifications.
      But the process is complex and takes long time. Beg your forgiveness and hope you can understand.
      Best regards

  6. I agree with Max. You should have the choice to change it after power up, but it should always become active upon start up. I purchased it to regulate a voltage source on an aircraft. The technician using the equipment doesn’t need that extra step. I also wanted to read the incoming voltage from the outside of the enclosure, which this does. Something you may consider on rev 2. Thanks.

    • Hello Doug McDonald,
      Thank you for your writing in.
      We will try our best to make some improvements per your suggestion.
      Thanks for your business and looking forward to serving you again soon.
      Have a nice day.
      best regards

Leave a Reply

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