Programmable Linear DC Power Supply

Programmable linear DC power supply uses electrons that move in a straight line. This linear movement, in contrast to AC’s wave motion, gives this current its name. This form of current comes from batteries, solar cells, fuel cells, etc.

As programmable linear DC power supply are so consistence in voltage delivered so that most electronics need this type of power. Which electronic have AC power that’s why they convert it in DC power with the help of rectifier. Power supplies often have rectifiers built in along with transformers to raise or lower the voltage to the appropriate level.

Some electronic devices are preferable for DC current because the high and low power supply of AC current may damage the delicate component of the electronic devices such as notebook computers.

How Power Supplies Works? 

A power supply reduces the main electricity power of AC into DC. There are two type of power supplies ,linear and switched mode. A programmable linear DC power supply is usages a transformer to reduce the voltage. The ratio of primary windings (connected to the mains) to the number of secondary windings (connected to the output) would give the ratio of how much the voltage reduced by, in this case a ratio of 20:1 reduces the 240 volts AC input in to 12 volts AC on the secondary windings.

On other hand the switched mode work on the switch on and off the main electricity to reduce the power supply. The programmable linear DC power supply transformer typically uses a steel core. Because eddy currents would occur in a solid steel core and reduce the efficiency the core is made from insulated steel plates stacked next to each other with the windings wrapped around them.

Advantages of Using Programmable Linear DC Power Supply

Programmable linear DC power supply cover wide range of current and power voltage. Most models include a wider operating range with constant power, higher current ranges, precision readback of output current and voltage, output trigger signals, as well as the ability to create complex DC transients waveforms to test device behavior with voltage deviations. There are various type of programmable linear DC power supply, but the advantage is clear with chroma.

#Programmable linear DC power supply allows the user to repeatable control the turn-on and eliminate/validate input related issues.

# It can emulates your complex transients and provide control over each steps.

# Gives you high accuracy readbacks and eliminates the need for external meter, stunts, etc.

# It will replaces the need to purchase multiple units and give constant power operating envelope.

Uses Of Programmable Linear DC Power Supply!

Power supplies are become more sophisticated in response to the needs of today’s ultrasensitive electronic products. Changing voltage requirements of a product call for a supply that is easily programmed.

Programmable linear DC power supply are used to test, portable wireless devices such as cellular phones and mobile radios, etc.

Today’s automobiles also have incorporated many electronic packages into their final product that need power supplies for testing which control heating, air conditioning, headlight dimming, etc. All of these subsystem requires DC testing and evaluation.

Components Of Programmable Linear DC Power Supply

Programmable linear DC power supply is an electrical device that supplies constant DC voltage. The main function of programmable linear DC power supply is to convert the flow of current. The programmable linear DC power supply consist of four component on which it functions.

Transformer

It is a AC signal which generates the input to the transformer. This transformer is used to step up and step down the signal to deliver the required voltage at the output of the of the power supply.

Rectifier

Rectifier is the signal the transformer output which consist of diodes and resistors. A rectified pulsating DC signal is provided by this component of the digital DC power supplies. A pulsating DC signal, which is basically a current or voltage, does not change polarity. However, its magnitude is a function of time. The rectifier may be a half-wave or full-wave rectifier.

Filter

The function of the filter in programmable linear DC power supply is to convert a pulsating DC signal to a non-pulsating DC signal. The result of using filter is DC voltage, which usually has some small AC variation.

Regulator

Regulator are used in programmable linear DC power supply for two main purpose i.e. to smooth the signal from the filter producing the DC signal with no ripple and to generate a constant voltage at the output.

Buyer’s Guide 

Before purchasing a programmable linear DC power supply must know the feature of the machine and invest on safe device. Must consider these factors before buying.

1. Stability

Stability of power supply need proper verification and calibration because changes in the performance of dc power supply for mobile depend on long-term use and to maintain stability of the power supply.

2. Accuracy

The accuracy value is obtained by the regulation process quality and the conversion. Accuracy specification is associated with both current settings and voltage. To measure both the current and voltage, most of the Digital DC power supplies come with in-built measurement circuits. Thats why it is most important feature to look before buying a programmable Linear DC power supply.

3. Transient response

It is the most important feature to look after the DC power supply before buying because it measure how well the power source is able to hold its output constant in response to load changes. Most of the DC power supply have a transient response time of 50 to 100 microsecond.

4. Resolution

Resolution of a power supply or SMU output channel is the smallest possible change that can be made to the output voltage or current level. This limitation is imposed because of the finite number of steps that are available in the device DAC circuit. Output resolution can be calculated by dividing the total span of the output range by the number of possible quantized values the DAC allows.

5. Warranty

Before buying a programmable linear DC power supply must see that the manufacture giving you the warranty on his product so that you can get easily customer service when it requires. If a manufacturer is giving you the warranty on his product then you a can buy any brand.

Conclusion

Programmable linear DC power supply not only ensure a stable power supply to a device, but it also helps prevent system damage. These power supplies are able to allow for multiple usages of power by increasing power output. In short, it ensures high efficient regular direct current power supply. So, to go through several different options for thousands of products, you must go through the buyers guide of this article to get the best DC power supply.