Rating of the best laboratory power supplies for 2022

What to look for when choosing a laboratory power supply? On the purity of the output voltage. There is no single parameter requirement. Much depends on the scope of the device. LBP began to be produced back in Soviet times, and to this day they enjoy well-deserved popularity due to their reliability and efficiency.

general description

The word "laboratory" is used for a reason, since their main purpose is to help in laboratories. They “live” there permanently and are not even transported for repairs in outside premises. Experts do not recommend using the device outdoors or in a car. Laboratory also implies the adjustment of parameters and the precise setting of indicators.

The main division of products is as follows: imported and domestic production. The first option, as a rule, of Chinese origin, is often used in service centers that repair equipment that has become unusable. The main disadvantage is the lack of credential documents, the positive moment is that they are affordable. They do not lead the rating of quality goods, but reliability control is still present in any production. The best models are quite comfortable and have short circuit protection.

Russian-made products have certificates of conformity, undergo regular verification, which leads to an increase in the cost of their use. These power supplies can tolerate a slight error, are distinguished by reliability and efficiency, as well as a long service life.

What are

In order to avoid mistakes when choosing, it is necessary to clearly and clearly understand the essence of the definitions and see the difference between them. Let's figure out what is the difference between laboratory and conventional power supplies, and what is a power source in general:

1. A simple power supply is an electronic type device used to generate a predetermined indicator in one or more channels. The display and control unit are missing. A typical representative is a PSU for a low power computer.
2. The laboratory BP regularly generates a flow through one or more channels. Equipped with a display, protection against misuse, controls, and other useful features.

The concept of "laboratory power supply" is identical to the phrase "laboratory power supply".

The types of power supplies are:

• primary;
• secondary.

Representatives of the first option carry out the conversion of non-electric types of energy into electrical energy. These include batteries, solar panels, wind turbines and more. Secondary IPs are used to convert one type of electricity to another in order to provide the desired parameters of frequency, ripple, and the like. This group includes:

• AC/DC converter;
• DC/DC converter;
• transformers;
• flow stabilizers;
• LBP.

Regarding laboratory power supplies, they differ in characteristics and varieties. Let's dwell on this issue in more detail:

Differences	Description
According to the principle of operation	Impulse and linear.
Operating ranges	Availability of automatic power limitation or fixed.
Number of channels	Multi-channel and single-channel.
The presence of protection	With the function of protection against overheating, surge, overcurrent and so on.
Power	Significant power or standard.
Channel isolation methods	Uninsulated or galvanically isolated.
output signal	AC or DC voltage and current.
Management methods	Software along with manual or just manual.
Additional functionality	The presence of a built-in precision multimeter, brings the flows in the connection wires to the desired level, changes the output of the set values, activates the timer output, the presence of a built-in electronic load, and so on.
Degree of reliability	Thoughtful appearance, quality of the element base, careful output control.

Criterias of choice

Which company is better to buy depends on the scope of the tool. Popular models can be used by radio amateurs for everyday tasks, as well as for high-precision measurements and tests in industrial enterprises. Products are used where radio engineering and electronics are present, that is, everywhere. Main directions of use:

1. Implementation of quality control of radio engineering elements.
2. Carrying out testing of electronic units and circuits.
3. Testing of instrumentation.
4. In the production and subsequent repair of radio engineering.
5. In the process of designing, designing and testing radio-electronic equipment.
6. Applications as a power source.
7. Use in the educational process when conducting laboratory research.
8. During the period of simulation of physical and electrical processes.
9. In order to emulate the functioning of certain equipment.

Depending on the need that has arisen, the question arises which device is better to buy and from which manufacturer. How to choose not to be mistaken? It is advisable to first study the review of the proposed models, read the reviews, clarify in relation to the new products being produced. According to buyers, the material of manufacture is of no small importance. The service life of the device and its efficiency directly depend on this.You can get acquainted with the rating of popular models, both inexpensive and at a significant cost.

Features of choice

In the selection process, it is worth paying attention to the following characteristics:

• operating parameters;
• dimensions;
• number and power of output channels;
• protective functions or their absence;
• advantages and disadvantages;
• average price of a product.

In order for the device to perform the tasks assigned to it, it is necessary to pay special attention to the technical characteristics:

1. An unstable indicator in the supply network if there is a change in the alternating current.
2. Noise indicator during operation.
3. The time interval during the transition to the initial characteristics when the consumer current changes.
4. The quality of the measured parameters and the presence of errors.
5. Resolution - the ability to set the step for setting indicators at the output.
6. Management interface.
7. How are losses compensated when connected to a four-wire circuit in order to control the elements that regulate the output flow using test leads to compensate for the loss in the mains.

The best option is the presence of minimal noise, fine and coarse adjustment, increased connectivity.

Where to buy depends on the preferences of the professional. You can order directly from China using the Ali Express service or visit a specialized store and purchase the set you like. There is an option to order goods online in the online store.

There are craftsmen who are able to assemble LBP with their own hands at home. The main thing is to choose the right scheme.You can independently make a simple linear power supply with adjustable flows from 1.3 to 30 V, adjustable from 0 to 5 A. You get an almost universal device that will operate in stabilization mode. If necessary, you can power the sensitive circuit or charge the battery. How to do this or that operation, the step-by-step instructions set out on the Internet will tell you.

Rating of the best laboratory power supplies for 2022

Budget models

Element 1502 DD

Inexpensive Chinese goods can be seen not only in scientific institutions, but also in the arsenal of home craftsmen who use it to test devices that consume non-standard voltage. Belongs to the category of full-fledged single-channel power supplies. Able to convert streams in the network with an error of up to 1/100 of a share. It is popular with those who do not need an expensive and rather complicated device to work.

The average cost is 1500 rubles.

• easy to operate;
• inexpensive;
• qualitative;
• A good option for repairing simple electrical appliances.

• visible are absent.

Korad KA 3005 D (30 V, 5 A)

The main difference is the presence of digital control. Able to remember several settings. The presence of four-digit indicators allows you to set the current and voltage with particular accuracy. The measuring device is especially popular among professionals and amateurs of radio electronics. It can be purchased both in specialized stores in Russia and ordered from China. In the latter option, the price will increase by an average of 1000 rubles, including delivery.

The manufacturer offers products at a price of 5000 rubles.

• high power;
• advanced digital control;
• comfort during operation;
• high-precision;
• reliable;
• functional.

• significant have not been identified.

PS - 1501 A

The Chinese manufacturer produces products with arrow indicators. The absence of a liquid crystal display bothers few people, so the product has found application in various fields. Arrow indicators perform the following tasks:

• the first measures the voltage from 0 to 15;
• the second - amperes from 1 to 3.

The interaction is carried out through a single resistor located on the front panel. The indicator of the limiting ripple is 3 mV. The type of device is single-channel, it is distinguished by maximum accuracy, however, it is not possible to derive an error of up to 1/1000 of a volt. It is mainly used by home craftsmen and technicians in workshops where electrical goods are repaired and tested.

The average price is 1150 rubles.

• inexpensive;
• quite easy to manage;
• the connection diagram is elementary;
• lack of complex buttons;
• high accuracy;
• reliability;
• durability.

• unable to make perfect measurements.

LW-K-3010D

A powerful switching laboratory power supply with an increased rate of 32 V, instead of the standard 30 V. As for the current, its characteristics are completely the same. Possesses analog adjustment of output parameters. The indicator can be set with an accuracy of 0.1 V using a multi-turn variable. With regard to the magnitude of the stabilization output current, its installation takes place in a rough form, through the use of a conventional variable.

Sellers offer products at a cost of 2800 rubles.

• high output power;
• vertical type of construction;
• compactness;
• good combination of price and quality;
• reliability;
• long service life.

• significant have not been identified.

YA XUN PS-1502 DD

A Chinese company has launched the production of a high-quality device at an insignificant cost, which is widely used in service centers for the repair of cellular telephones. Despite the name "laboratory block", it is not suitable for solving complex problems. Belongs to the category of single-channel instruments with a voltage range of up to 15 watts and from 1 to 3 amperes. Ripple index - 3 units. The introduction of parameters is carried out by using four resistors. The presence of fine tuning makes it possible to display values ​​of four characters on the channel.

Products are sold at a price of 1250 rubles.

• the connection diagram is elementary;
• ease of operation;
• affordable cost;
• high quality;
• reliability;
• durability.

• the brand is not developed.

Models of the middle price segment

Wanptek NPS 306 W (30 V, 6 A), NPS 1203 W (1200 V, 3 A)

The company has launched the production of eight blocks and various combinations of voltage and current. Some representatives can give out streams up to 120 V, unlike their competitors, whose performance reaches a maximum of 100 V. A distinctive feature of the product is its small size, which makes it possible to save a lot of free workplace on the table. Three or four digit indication is provided. Equipped with power indicator.

How much does the item cost? In the range from 3500 to 5500 rubles.

• small design;
• comfortable;
• easy to use;
• high quality;
• with a long service life.

• significant have not been identified.

Yaogong 1502 DD

A distinctive feature is the presence of a heavy copper transformer inside the case, which reduces the ripple rate. The device weighs 3.5 kg, although it is included in the TOP of the best products in this category. Only the quality of the current and voltage of the source allows it to be called laboratory. The main technical indicators are as follows:

• current ripple - up to 3 mA RMS;
• voltage ripple - up to 1 mA RMS;
• the accuracy of the set values ​​is 0.01%;
• voltage setting - from 0 to 15 V;
• current setting - from 0 to 2 A.

In a complete set, the goods can be purchased at a price of 2540 rubles.

• value for money;
• equipped with short circuit protection;
• large digital indicators;
• pulsation is insignificant;
• there are contacts for the clamp and the plug.

• minimum range of current and voltage;
• voltage adjustment is carried out by means of three handles;
• significant weight, which implies an increase in the cost of services for the delivery of goods to their destination.

Mastech HY 1803 D

The Chinese company produces compact forms - factors, which is their main advantage. For installation, you should not free up a lot of free space on your desktop. The model is compact and does not take up much space. In addition to small dimensions, it is worth paying attention to the connection diagram. A two-channel device is able to output power up to 1/1000 of a share. An excellent indicator for such a tool.

All channels are equipped with liquid crystal displays. Any adjustment is carried out using a single resistor. Each master is able to operate, without even studying the instructions that are included in the kit and set out in Russian.

The price of the goods is 3500 rubles.

• convenient vertical form factor;
• ease of connection;
• lack of a huge number of buttons;
• easy to operate;
• the price is worthy of attention;
• long service life;
• functionality.

• significant have not been identified.

Longwei PS - 302 DF (30 V, 2 A), PS 1003 DF (100 V, 3 A)

The global manufacturer presents advanced products in 10 combinations of current and voltage for everyone to see. Equipped with analog control, but improved: regulators for fine and coarse adjustment of current and voltage are installed.

The average cost is from 5300 to 8000 rubles, depending on the kit.

• improved indication;
• equipment with four-digit indicators;
• the presence of a USB 5V 2A output with the possibility of recharging mobile phones;
• ease of use;
• durability;
• reliability;
• high quality work.

• significant ones are missing.

Gophert CPS - 3205 II (NPS - 1601)

The model differs from its counterparts in the absence of an internal transformer, due to which it is controlled using buttons, which is not very convenient. Such a design feature to please those who prefer to purchase budget products. However, the case is of high quality and reliability due to the presence of cooling fins.

The price of the device is 3810 rubles.

• the presence of a contactor for clamps and plugs;
• short circuit protected;
• slight voltage ripple;
• inexpensive;
• the kit includes a set of plugs;
• the presence of heat sink fins on the body.

• there is no separate socket for grounding;
• controlled by buttons.

Gophert CPS - 3232 (32V, 32A)

The advice of professionals boils down to the fact that this model is the ultimate dream. The total power is more than a kilowatt! The flat design is impressive, thanks to which the device can be easily installed on a hanging shelf on top of the desktop, without compromising on free space. The impulsive apparatus weighs only 2.2 kg, despite its considerable power. The presence of digital control with some quirks complicates its operation a little.

The average price per unit is 10,000 rubles.

• too powerful;
• reliable;
• long service life;
• high precision.

• "tricky" management;
• significant cost;
• increased noise level during fan operation.

Long Wei PS-3010 DF

The model is distinguished by the presence of an internal transformer in order to reduce the noise level. The presence of additional options, such as a USB connector and a display that displays data on power consumption, implies an increase in the cost of production and affects its final cost. The manufacturer puts the device up for sale at a price of 5720 rubles.

• equipped with a convenient handle for transportation;
• slight pulsations;
• value for money;
• large digital indicators;
• additional equipment in the form of a USB connector;
• contacts for clamp and plug are provided;
• protection against short circuit is installed;
• reliability;
• durability;
• high build quality.

• significant cost.

Long Wei LW-K 3010 D

This LBP is considered the best option, taking into account price and quality, as well as dimensions. Made in vertical form factor. Differs in the minimum number of devices for adjustment: the power button, resembling a pen, in the amount of one piece. Current limitation and voltage adjustment are carried out using two knobs. The efficiency indicator is at the level of 85%.

The average price is 2760 rubles.

• convenient dimensions;
• inexpensive;
• qualitative;
• functional;
• reliable;
• long service life;
• there is protection against short circuit;
• the presence of contacts for the plug and clamp.

• no current limit calibration.

Premium models

Masters 325D

High quality products are made by Chinese manufacturer. It is considered a full-fledged laboratory power supply. The main advantage is a large number of fine-tuning and the ability to find out data about the input and output voltage. The high-quality digital display allows you to fine-tune the performance up to 1/100 of a beat.

The product can be purchased at a price of 6700 rubles.

• functionality;
• high accuracy;
• ease of use;
• there are additional settings;
• high quality and reliability;
• the ability to record information in 500 memory cells;
• long service life.

• significant cost;
• single channel device;
• complex connection scheme;
• a significant number of settings.

ITECH IT 7300

Products belong to the category of constant sources of alternating voltage and current. Allows you to flexibly control the shape and amplitude of the output signals. Able to test both manually and with the help of program control. Moreover, the modes of operation do not play a big role. High accuracy of readings is possible even with voltage surges and dips, frequency drift, and so on.

The cost of the device ranges from 27,000 to 39,000 rubles, depending on the configuration.

• the presence of a built-in power meter allows you to save money on the purchase of an additional device;
• supports three devices via system bus;
• built-in GPIB;
• reliable;
• durable;
• quality assembly.

• significant have not been identified.

Tektronix PWS 4000

When it becomes necessary to supply power to low-noise and highly sensitive circuits (DAC, ADC, sensors and audio devices), they resort to using transformer laboratory power supplies with linear output voltage stabilization. Tektronix has done an excellent job of delivering the best series of these power supplies. The devices are able to provide a noteworthy level of ripple and noise at an output voltage of no more than 1 mV RMS.

The cost of devices is significant - from 85,000 to 111,000 rubles.

• combinations of current and output voltage are possible;
• highly efficient;
• quality work;
• durable;
• complete with cord and cable;
• the presence of an overvoltage protection circuit;
• able to control the maximum voltage limit;
• makes it impossible to reconfigure the program during testing;
• there is a USB interface for remote programming;
• linear stabilization.

• not identified.

Korad KA 3305 P

The three-channel device is almost completely metal, including heatsinks and transformers. Weight is 9.4 kg. One channel is fixed, with a voltage output of 5 V at a current of 3 A. The remaining two channels are of an adjustable type and operate in the range from 0 to 30 V and a current of 0 to 5 A. The latter can work both independently and in parallel or in series , depending on the set mode.

The PSU is equipped with a USB interface for connecting to a computer. Able to remember several settings. The product is sold in specialized stores at a price of 15,000 rubles.

• convenient to use;
• durable;
• reliable;
• quality assembly;
• the price and technical characteristics are optimal.

• significant have not been established.

UNI-T UTP 3303

If you want to become the owner of a serious device - stop your choice on this model. The dual-channel power supply is designed to simplify the complex repair of power supplies, smartphones and motherboards, in case it becomes necessary to supply two independent voltages to the board. When using only one channel, the second can be used as a charger for another device using a set of adapters.

The average price of products is 17145 rubles.

• the presence of an additional output 5 V 3 A;
• equipped with clamp and plug contact;
• slight voltage ripple;
• a budget option;
• there is protection against overvoltage, polarity reversal and short circuit;
• long service life;
• high quality workmanship material.

• significant dimensions;
• great weight.

Conclusion

Masters in the repair of radio equipment and electronic equipment know how necessary it is to have a laboratory power source in their arsenal - a special electronic device that regulates current and voltage.

It is a box equipped with a screen, indicators, buttons, protective functions, control potentiometers and additional functionality. Quite an important component in laboratory research, when it is necessary to obtain an accurate and high-quality characteristic of the tests performed.

In most cases, products of Chinese origin or Russian companies are presented on store shelves. It differs not only in price, but also in dimensions, weight, technical characteristics, material of manufacture, reliability and durability. Everyone has their own selection criteria, depending on the scope of use of this tool and the financial capabilities of the buyer.