Enhance ENP1

8/3/2019 Enhance ENP1

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Enhance ENP-3650 (500 watts)

The first of them - quite original "polubezventilyatorny" Power Supply ENP-3650. This term

means that the fan in the unit still is present, but is included only if significant load: as a result of a

simple system does not make noise, but under heavy load - not too hot.

Appearance, a set of cables and connectors

Unit differs from most fellow mesh body - you need to maximize the effectiveness of cooling due

to convection alone, at the facilities when the fan is not included.

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In the interiors, of course, most of the places are occupied by huge black heatsinks. Of the

minuses can be mentioned too often for passive cooling arrangement of edges: in the absence of a

directional flow of air from radiators of similar works effectively only the outer surface.

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Established in block fan at first sight does not see: it is hidden between the radiator and the rear

wall of the body.

At the output of capacitors used Teapo.

The unit has the following set of cables and connectors:

motherboard power cable with a 20 +4- pin connector, length 54 cm;

CPU power cable with a 4-pin, length 55 cm;

video power cable with two 6-pin connectors, length 55 15 cm;

One cable with two power connectors PATA-drives and one - the drive, length 55 +15 +15 cm;

One cable with two power connectors PATA-HDDs, length 55 15 cm;

two loops with two power connectors SATA-drives in each, a length of 55 cm 15;

Set, as you see, enough to wish that you can really change one of the 6-pin video card power on 6+2- pin universal.

Passport Options

Unit is designed to power up to 500 watts, of which he may give the 12-volt bus up to 432 Tues

No claims to the stated parameters we have not.

Stability of output voltage

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In contrast to the series of blocks ATX, in a series of ENP, an additional independent constant

voltage, so that the graph of cross-load characteristics is much more pleasant: our two test

configurations that fall within the valid range for the unit loads are in the "green" zone, where the

voltage deviation of the nominal value does not exceed 2%.

Output voltage ripple

Even at full load output voltage ripple low - much lower than the maximum permissible level.

Noise

As you may recall, ENP-3650 - is "polubezventilyatorny" unit: it is a fan size 70x70x15 mm, but

it should be included only at a sufficiently high load, when the unit is not enough passive cooling.

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The experiments showed that at room temperature (+25 C), the fan under load is about 230

watts, but it works in a very unpleasant operation: firstly, there is always a constant and very highspeed, and secondly, with loads of 230 up to 300 watts continuously fan is turned on, then cooled

unit off again. When the fan unit is very noisy.

Why the developers did not provide for fine adjustment of the speed depending on the temperature

of the block, as well as a noticeable hysteresis (difference between the temperatures at which the

fan turns on and off), is unclear. One only has smooth adjustment could significantly increase the

attractiveness of the ENP-3650 to holders of quiet computers.

Efficiency and power factor

Efficiency Unit - parameter is very important for a model that works with passive cooling - good

but not record: an average of about 87%.

Source standby power

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'Duty room "in the ENP-3650 is designed for current to 3.0 A. With this task it copes, but with

some difficulty: at the maximum load output voltage of 0.04 in above the minimum.Result

In fact, the only drawback Enhance ENP-3650 is a very sharp boundary between two states of the

bloc - with the fan off and on: if a small capacity, he silent, then the load of about 230 watts, the fan

immediately on all my no small power, creating a strong and unpleasant noise. Note that in cramped

and poorly cooled housings, this boundary may move downward ...

As a result of ENP-3650 can be recommended except as a model for quiet fanless HTPC-system,

creating a small load on the power supply - then it will run silently. The fan also should be

considered more as a protection against fatal overheating unit rather than as a means of cooling the

staff - as a last resort it is too noisy, not only for the home, but even for office furnishings.

Enhance engineers we can advise you realize smooth adjustment of fan speed: it will solve the

problem with excessive noise levels at an average unit loads, and with periodic on-off fan.

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Enhance ENP1

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