Of course, these are impulse blocks with all the ensuing advantages and disadvantages. To test the electrical performance, I decided to use a breadboard by soldering the power cord directly to the converter pins:
And insulate with heat shrink: Let’s build an adapter from the breadboard to the tester connector, I took the USB connector here: It is this case that is https://jiji.ng/pets-accessories/plastic considered in this review.
The power supply warmed up a little: I hope the information from the review to someone
To test the current, I used an electronic load with the possibility of smooth adjustment. I invite fans of electrical crafts under the cat…
But recently, blue power supplies have appeared on Ali in the same TENSTAR ROBOT form factor. sellers often claim that they are designed to replace the beloved HI-Link. Both power supplies are filled with a compound, and apart from the pins they have no conductive parts, sometimes this is very important.
Let’s check the heating:
To test the current and the voltage is convenient to use one of the usb testers, I have one.
Let me remind you the configuration of the USB connector contacts:
Overload:
Let’s go beyond
permissible power limits: Powerful sources are not always required, sometimes compactness, stability and convenient installation are more important. Hi-Link review (in English) with graphs and autopsy, from there a photo of the insides:
Voltage:
Operating mode:
Temperature is normal:
Device temperature:
The seller claims even more optimistic parameters: 90-264 V.
Ripples did not appear:
We assemble the circuit, the first test will be Hi-Link: They come in different voltages, in particular, I used at 12 and at 3.3 V. Thank you for reading to the end.
The dimensions correspond to the declared ones, I was guided by them even before the arrival of the blocks themselves, I made boards for them, everything fell perfectly. The entire table of characteristics from the seller’s website: Thus, both the power supply proved to be quite worthy, the blue heats up a little less. Without load no ripples:
Dimensions:
Intermediate measurement:
We will evaluate the ripples with an oscilloscope by turning on the ac voltage connection:
We put our blue friend TENSTAR ROBOT instead of black Hi-Link: < br /> The dimensions and pinouts are absolutely identical to the Hi-link that I took here: According to the marking on the device itself, a fairly wide input voltage of 100-240 V is acceptable. The packaging is pretty decent. pinned to polystyrene and wrapped with foil:
Declared operating current: This power supply has performed well. The transducers arrived in 3 weeks.
No ripples: The output voltage of these converters is 5 V, the output power is 3 W, which corresponds to a current of 0.6 A.
Ripple is fine: I applied this block (black Hi-Link), for example, here and here. Those who like to do something in terms of radio electronics often require AC to DC converters of one size or another. Macro for Sprint Layout, useful when designing your devices using these converters.
At a current of 130 mA, the voltage dipped below 5 V: The weights of the devices are the same:
I have already used ac-dc HI-LINK converters in my crafts, in particular here.
No actual ripple: In addition, I connected a multimeter in parallel:
All peace and goodness.
We will crimp the wiring with the tool from this review:

Miniature power modules (ac-dc converters) TENSTAR ROBOT and HI-LINK