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Power Supply

How Linear Power Supply Works

High-end adjustable linear power supply is commonly used in laboratory applications. They allow the output voltage over a wide range such as between 30 volts and 5 amperes output. Another common use of linear power supply is rechargeable flashlights that are based on simple circuitry.

 

Linear power supply accepts AC input and generates a respective output. It utilizes a transformer to convert the main supply into low voltage AC. To produce DC output, the main supply is passed through a rectifier. The main supply AC comes along with severe deviations called as noise. To contour this pulsating current, a capacitor is placed in the AC to DC circuit. However, small deviations continue to exist in the resultant DC, called as ripples. The noise frequency of the ripples is in resonance to the main power supply frequency.

 

Regulated vs. Unregulated Linear Power Supply

Linear power supply can be regulated or unregulated depending on the circuit configuration. In the unregulated mode, the output supply cannot be accurately predicted. The output voltage generated through unregulated power supply varies as per the characteristics of the main AC supply voltage. The overall load on the circuit also affects output supply. Thus, attaining the state of constant voltage or constant current is difficult at unregulated linear power supply mode.

 

For critical electronic applications, the linear mode power supply is attached to a regulator. It helps in stabilizing both the current and the voltage. Regulator also filters ripple and noise elements in the input. The purpose of such filtering is to generate a better quality DC output. To protect the equipment from over-current, the linear regulators limit current flow in the circuit.

 

Linear Power Supply vs. Switch Mode

Comparative analysis of the linear power supply with advanced switch-mode system helps to understand its industry application.

 

The advantages of linear power supply over switch-mode are:

• Easy circuit operations

• No high frequency switching associated with electro-magnetic interference

• Offers high output regulation

• Adherence to strict output specifications is possible

 

Some disadvantages to watch out for while using the linear power supply as compared to the switch-mode are:

• Power loss due to voltage drop

• Isolation of the voltage output poses severe challenges

• Utilizes a low frequency bulky transformer

• Produces low frequency ripples that are difficult to filter

• Less efficient

 

CyPower has demonstrated its expertise as a global distributor of power supply equipments. Browse and search for whatever information you need on linear power supply and equipments at www.cypower.com.

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Cypower offers a great collection of linear power supply at affordable prices.

Medfusion Power Supply $142.6 Medfusion Power Supply

power supply $39.99 Athenatech - Power supply ( internal )

Power supply $108.99 VisionTek - Power supply ( internal )

Respironics Universal Power Supply $191.7 Universal Power Supply for use with Avant 9600 Pulse Oximeter.

Respironics Replacement Power Supply $69.13 Replacement Power Supply for Smart Monitor 2 Apnea Monitor.

Va-100P-5 - 10-Outlet Power Supply $396 This AC Power Supply is an Efficient Ten-outlet Universal Switching Power Supply That Can Supply 5V DC at up to 8a. It is Designed to Operate Kramer Products That Use an External 5V DC Power Transformer. [2965576] Truck Delivery UNSPC: 39121004 13.78L x 8.86W x 3.15H 5 LB 1 Cubes

Respironics Uninterrupted Power Supply - UPS for Alice 5 $289.99 Uninterrupted Power Supply (UPS), for Alice 5.

Steris Power Supply for Amsco 3080 Surgery Table $944.94 Steris Power Supply for Amsco 3080 Surgery Table

Hemosense INRatio Power Supply Cord, 120V, Each $31.64 Hemosense INRatio Power Supply Cord, 120V.

Nonin Universal Power Supply for Avant Series $126 Nonin Universal Power Supply for Avant Series: Does not include Power cord.

Devilbiss Switch Mode Power Supply, AC/DC Adaptor for Power Cord $89.99 Devilbiss Switch Mode Power Supply, AC/DC Adaptor for Power Cord

At-Pwr9 - Allied Telesis Redundant Power Supply - Redundant Power Supply $129.96 the At-pwr9 Is Designed To Provide Redundant Dc Power. When Installed, The Power Supply Shares The Load Of Powering The Chassis With The Main Power Supply. [2377993] UPC: 767035137285 UNSPC: 39121004 12L x 7.75W x 6H 2.64 LB 1 Cubes

Pc60 - Shuttle Pc60 Atx12V Power Supply - 300W - Atx12V Power Supply $75.88 the Shuttle Xpc Accessory Pc60 is The New Version of Shuttle Sff Power Supply With Compatibility of 300w. Power Supply Offers Easy AC to DC Switching. With Low Noise Figure of 30db, it Fits in Any Noise-sensitive Environment Like Library And Office. With an 80 Plus Efficient Power Supply Standard, Energy Star Qualified Configurations, Pc60 Proves Itself a Saving in Power Consumption And Energy Costs. [2379045] UPC: 811686005223 UNSPC: 39121004 13.4L x 4.1W x 2.3H 2.55 LB

Power Supply for BIOLITE $80 Power Supply for BIOLITE

67Y1370 - Lenovo 675W Redundant Power Supply - Redundant Power Supply $326.61 this 675w Redundant Power Supply Provide You With The Most Efficient Way to Maintain a High Reliability Solution - Critical to Meet The Needs of The Business. This Redundant Power Supply is Specific to The Thinkserver Rd220. [67Y1370] UPC: 884942626272 UNSPC: 39121004 4 LB

Al300Ulx - Altronix Ac Power Supply - Ac Power Supply $133.58 Model AL300ULX power supply converts a 115VAC 60Hz input, to a 2.5 amp of continuous supply current @ 12VDC or 24VDC power limited output. [NA3414] Truck Delivery UPC: 782239931163 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.55 LB

Al600Ulxd - Altronix Al600Ulxd Ac Power Supply - Ac Power Supply $245.12 This AL600ULXD power supply/charger converts a 115VAC or 230VAC 60Hz input, to a 6 amp of continuous supply current @ 12VDC or 24VDC non-power limited output. [NA3454] Truck Delivery UPC: 782239933761 UNSPC: 39121004 16.4L x 5.9W x 13.5H 16.2 LB

Al300Ulxr - Altronix Ac Power Supply - Ac Power Supply $133.53 Model AL300ULXR power supply converts a 115VAC 60Hz input, to a 2.5 amp of continuous supply current @ 12VDC or 24VDC non-power limited output. [NA3419] Truck Delivery UPC: 782239931170 UNSPC: 39121004 13.25L x 4.25W x 14.7H 8.45 LB

SPARE POWER SUPPLY $159.99 SPARE POWER SUPPLY

PSN6.5 - power supply $337.99 AMX PSN6.5 - Power supply