Great Product

Is handig in gebruik en is goed uitgevoerd

It works great. Things to consider is that you need to step through the digits for up/down value meaning it is not directly responding to turning the knob.While pressing the knobs to enter up/down I push the unit back since it's very lightweight.The fan does randomly turn on even when it's not drawing anything but it's reasonably quiet.The USB C connection is just 5V and not part of any type of measuring Ingambled it would) and I would not recommend buying this extra feature since you need to have the unit on al the time.

Positieve punten:- goed afleesbaar display.- laag gewicht want schakelende voeding en geen zware transformator meer.- spanning en stroom goed instelbaar, per digit.- geleverd vermogen afleesbaar.- uitgangsspanning uitschakelbaar, zonder de hele labvoeding te moeten uitschakelen.Negatieve punten:- nog niet gevonden.

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Has all the described features. Very neat that it can regulate voltage to keep a constant current as well.The fan only turns on when using more watts, which is nice to reduce noise.

Been running it at 310w constant load for two weeks now with no problem, easy to use and good quality overall.

Bardzo dobry sprzęt, starannie wykonany. Także w środku, sporo miejsca i dobre rozmieszczenie elementów i przewodówuwzględniające potrzeby chłodzenia. Wielka jego zaleta i przewaga wśród podobnych zasilaczy jest taka, że zamiast tańczących potencjometrów ma enkodery, którymi ustawia się natężenie i napięcie po jednej cyfrze. Dodatkowo, kręcenie enkoderem podczas ustawiania np. drugiej cyfry po przecinku pozwala przekroczyć próg dziesiętny, czyli np. 0.064, 0.074, 0.084, 0.094, 0.104, 0.114... itd. Jest to bardzo dobrze pomyślane i wygodne. Po ustawieniu parametrów zasilania i włączeniu wyjścia (output) pokazywane są realne osiągane wartości natężenia i mocy. Natężenie nie przekroczy oczywiście zadanej wartości.Włączenie wyjścia nie powoduje żadnego skoku napięcia ani natężenia (mam na myśli wartości na wyświetlaczu, bo oscyloskopem nie sprawdzałem). Wentylatorek włącza się tylko przy wzroście temperatury urządzenia i dostosowuje swoje obroty, po ochłodzeniu wyłącza się sam. Ustawienia napięcia i natężenia są pamiętane po całkowitym wyłączeniu i kolejnym włączeniu. Regulacja prądu i napięcia nie dotyczy wyjść usb, które podają stale 5V i 2A. Dołączone w zestawie kable są dobrej jakości, choć trochę za krótkie. Jedyną niedogodnością jest dość wąski rozstaw nóżek gumowych na spodzie obudowy, przez co zasilacz jest dość wywrotny, tym bardziej że środek ciężkości znajduje się dość wysoko z powodu umieszczenia transformatora. Każdy majsterkowicz coś tu jednak wymyśli. Bezpiecznik w urządzeniu działa tylko dla 230 V. Dołączona instrukcja obsługi jest beznadziejna, na przykład napisano w niej, aby nie używać zasilacza na deszczu, a nie objaśniono co to jest OPN i RMT, więc tu trzeba szukać wśród samouczków, demo i recenzji na YouTube.Typ na tabliczce znamionowej to SPS-3010M.

For the price, this is a great general purpose power supply for electronic projects and many other applications. The displayed numbers are generally within 1% or +/- 1, whichever is greater. The displayed current when the power supply is in constant current mode can be inaccurate. In the sample I received, at low currents, the current it limits to is about 2mA less than the limit displayed. Strangely, at currents above 15mA, when the the supply is in CC mode, the current value displayed is the value of the current limit and not the measured current which is actually 2mA lower.The manual fails to explain a few features of the power supply. Turning the voltage knob changes the blinking voltage digit. To get a voltage digit to blink, you have to momentarily depress the voltage knob. The digit will blink for 3 seconds after it has been selected or changed. These rules make unintended voltage changes less likely. The current knob works the same way for setting currents. Voltage and current changes can be made at any time and are well behaved. I had a power supply that occasionally generated large voltage transients when being adjusted but this one doesn't do that. The documentation mentions Over Voltage Protection but doesn't say anything about its operation. If you press and hold the Voltage adjust knob for 3 seconds, it shows you that the OVP is enabled and set to 33V. You can't disable it or change the voltage and the OVP light is always on. This is not a very useful feature since the only way the output can get to 33V is by being driven by an external power source. When the over voltage is detected, the supply disables the output and the OVP indicator blinks but the supply can't do anything to reduce the output voltage. The Over Current Protection can be enabled and disabled and the threshold is separate from the CC mode current setting. It can be set by tapping the current knob to get to the digits of the current display after the long press of the knob that takes you to the place in the UI where you can turn OCP on and off. The description and manual also tell you how to enable and disable OPN but they don't say what OPN is. It appears to control the state of the output when the unit is first powered up. When enabled, the output will be enabled after power up and, when disabled, the output is disabled after power up. When enabled, you can put the supply on a timer or a smart plug and have it power something with the same settings it had when it was powered off, when it gets power.Here are some technical details about the supply that may not interest most readers. There are two general types of power supplies: switching and linear. Although the description doesn't say it, this is a switching power supply and that comes with some pros and cons. The pros are lighter weight, higher efficiency and low cost. The cons are more electrical noise on the output and poor transient response. The implementation of this supply does a good job minimizing the cons but they're still present. At high load currents, noise from internal switching results in very brief 50mV spikes in the output voltage. The spikes are smaller at lower output currents and probably won't cause problems in most applications. 10A transients in load current result in 300mV jumps in the output voltage. I have attached scope captures of the noise and the voltage transient.The output has 2000uF of capacitance fed through a current measuring shut by a switching power supply with 3300uF of output capacitor in parallel with a 660 Ohm resistor. Note that turn on voltage ramp will be limited by the current limit and the 2000uF output capacitor in some configurations. Note also that there is no additional circuitry to disconnect the load from the power supply. When the output is turned off by the user or a protection feature, the switching power supply is simply disabled. Thus, if there is no load when the output gets disabled, the output voltage decays like a 660 Ohm resistor in parallel with a 5300uF capacitor over many seconds. The large output capacitance can be a little dangerous if you're not careful when using the current limit feature. For example, you can use the power supply to light an LED by setting the output voltage to a voltage higher than the LED's required voltage and setting the current limit to the current you want to drive the LED at. This will work fine if you connect the LED with the power supply disabled and then enable it. However, if you set the voltage much higher than the LED's working voltage, enable the supply and then connect the LED, the output capacitance will be charged to the high voltage before the LED is connected and will discharge through the LED when it gets connected; the constant current feature can't limit the resulting current surge. This could damage the LED.

電圧の設定が桁毎なので、少々コツが必要ですが、全体としては、使いやすいです。USB出力がある点も便利です。値段を抑えつつ、十分な機能を備えていると思います。

El diseño vertical es muy práctico porque ocupa poco espacio. Es pequeña y fácil de transportar, ya que pesa poco. El display es grande y se ve muy bien. Manejo muy sencillo con prestaciones adicionales interesantes. Las salidas USB y micro USB son prácticas. El botón de interrupción de salida es estupendo, puedes configurar la señal con los cables conectados y no emite señal hasta que se pulsa ese botón. Los botones de ajuste de voltaje y corriente son prácticos, cada vez que se pulsa uno de ellos se selecciona un orden (decenas, unidades, décimas, centésimas,...) y el valor se aumenta o disminuye girándolo. Parece complicado pero resulta cómodo, fácil y rápido. Por ejemplo, si quieres ver el efecto que tiene sobre un circuito el subir o bajar la tensión puedes, con el botón de salida pulsado y seleccionando el segmento de valor de tensión adecuado, hacer que la tensión suba o baje más deprisa o más despacio al girar el botón de voltios. El valor de salida es potente y estable, yo compré la 60v. porque es la que necesitaba para variedad de trabajos. Los cables de salida son muy flojitos, mejor cambiarlos por unos más largos y mejores. Es una compra muy recomendable, calidad precio excelente.