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Power Supplies

The best listing for Power Supplies is here at The Green Book Directory. Our wide range of database will connect you to its related industry and associated information. We could help you find related products such as AC to DC, Modular, Variable, Industrial Power Supplies and other related classifications. A broad list of Power Supply manufacturers, dealers, suppliers, distributors, wholesalers, stockists and services can be found here to meet your purchasing needs.

Power Supplies are electronic device which is used to supply electric energy for electrical load and converts AC voltage into a regulated DC voltage. It regulates voltage which is adequate to allow the device to operate efficiently without overheating. Power supply is rated according to the watts it generates.

Power supplies are design with power input to receive energy coming from the source and a power output which delivers the energy to the load; some power supplies are battery driven and others requires main power supplies to function. This power supplies are categorized in different ways which includes its functional features.

Categories of Power Supply
• Regulated Power Supply - sustains a constant output current or voltage even in variation of input voltage or load current
• Unregulated Power Supply - the output change extensively when the load current or input voltage changes.
• Adjustable Power Supply – the output current or voltage are managed by mechanical controls or control inputs.
• Adjustable Regulated Power Supplies – the output is both regulated and adjustable.
• Isolated Power Supply – the power output is electrically independent to its power input.

This power supply is composed of different elements, and each has its own function.
• Power input filtering – filters the spikes from the power line to prevent noise that might generate to the power supply.
• Input Transformer – transform the input line voltage into the required level.
• Rectifier – converts the incoming AC waveform into DC waveform.
• Rectifier Smoothing – smoothed the waveform coming from the AC rectifier circuit.
• Regulator – provides stable voltage and smooth waveform.
• Over Voltage Protection – protects the circuit from possible failure of the regulator and prevents further circuitry damages.

Power supplies are used to regulate voltage to eliminate surges and spikes which is common to electrical system which may damage the device or equipment.

Find the most credible power supplies companies and related products at The Green Book in Singapore.

Gold Listings

BSE Electrical Supplies Pte Ltd

Blk 5 Pioneer Rd Nth #01-27 S(628458)

BSE Electrical Supplies Pte Ltd is the Stockist and Authorized Distributor for Electrical Cables, Cable Supports, Low Voltage Switchgears, ...

Vector InfoTech Pte Ltd

3015A Ubi Rd 1 #05-13 S(408705)

Established in 1992, Vector InfoTech Group specializes in the supply of reliable industrial products and solutions to local and ...

Basic Listings

Goh Synergy Transformers Pte Ltd

68 Kaki Bt Ave 6 #01-06 Ark@KB S(417896)

Goh Synergy Transformers Pte Ltd"GS Transformers" is a transformer manufacturer specializing in low voltage dry type transformers. GS ...

Abletron Pte Ltd

71 Ubi Cres #04-13 Excalibur Centre S(408571)

Abltron (S) Pte Ltd

20 Ang Mo Kio Ind Pk 2A #06-22/25/26/27 AMK Techlink S(567761)

Abltron (S) Pte Ltd was established to provide metal products and other related services to wide range of industries. We are specifically ...

Ace Pillar (S) Pte Ltd

1 Kaki Bt Ave 3 #06-02 KB-1 S(416087)

Ace Pillar (S) Pte Ltd is a subsidiary of Ace Pillar Taiwan Co. Ltd which is a Taiwan Public company listed on the Greater Taiwan ...

Acetech Pte Ltd

23 Woodlands Ind Pk E1 #06-05 S(757741)

Supplying quality UPS products that provide a reliable back up power for IT equipment from desktop computers to large data centres, Acetech ...

Adonai Electronics Services

625 Aljunied Rd #05-07A Aljunied Ind Complex S(389836)

AED Electric Pte Ltd

21 Toh Guan Rd East #06-04 Toh Guan Centre S(608609)

Anewtech Systems Pte Ltd

62 Ubi Rd 1 #04-14 Oxley Bizhub 2 S(408734)

Anewtech Systems Pte Ltd, founded in Singapore since 1999 is today’s one of the most successful industrial computer platform builder ...