Power Supplies & Transformers

DC Power Supplies

Varedan has DC Power Supplies up to 1KW which include the internal step-down isolation transformer. Varedan also has DC Power Supplies that accept external single phase or three phase step down isolation transformer inputs for up to 45KW of peak power.

Standard Models

VPS Series Power Supply	Internal Step-Down Transformer?	Internal ±15VDC Amplifier Bias Supply?	# of Amplifiers Supported	Maximum Continuous Power	Bus ±VDC/Peak Current
VPS-LA-500VA	Yes	Yes	2	500W	±35VDC - ±70VDC/25A
VPS-LA-1KVA	Yes	Yes	2	1000W	±35VDC - ±70VDC/25A
VPS-LA2A	No	Yes	2	1000W	Dependent on external transformer ±150VDC Max./25A
VPS-LA4A	No	Yes	4	2000W	Dependent on external transformer ±150VDC Max./25A
VPS-LAHP-2A	No	Yes	2	3000W	Dependent on external transformer ±150VDC Max./55A
VPS-LAHP-4A	No	Yes	4	4000W	Dependent on external transformer ±150VDC Max./55A

AC Step Down Transformers

Standard AC step down isolation transformers to convert Mains Voltages to the lower voltages required by linear amplifiers are available. Varedan supplies both single phase and three phase transformers. Single phase transformers are available at 1 and 2 KVA. Three phase transformers are available at 3, 6 and 9 KVA.

Standard Models

VTR Transformers	Single or 3Φ	Input Voltage	Output Voltage	Maximum Power
VTR-020-001	1Φ	120/240VAC 50/60Hz	28/72VCT (±40VDC or ±100VDC w/ Varedan Power Supply)	1KVA
VTR-012-001	1Φ	120/240VAC 50/60Hz	35/50VCT (±50VDC or ±70VDC w/ Varedan Power Supply)	2KVA
VTR-017-001	3Φ	208/220/240/480VAC 50/60Hz	61VAC/122VAC/171VAC (±50VDC, ±100VDC,±140VDC w/ Varedan Power Supply)	3KVA
VTR-018-001	3Φ	208/220/240/480VAC 50/60Hz	61VAC/122VAC/171VAC (±50VDC, ±100VDC,±140VDC w/ Varedan Power Supply)	6KVA
VTR-019-001	3Φ	208/220/240/480VAC 50/60Hz	61VAC/122VAC/171VAC (±50VDC, ±100VDC,±140VDC w/ Varedan Power Supply)	9KVA

* Transformers with non-standard secondary voltages are also available.

Request Application Assistance

Tell us about your application so we can help you select the right solution.

Please use this fillable PDF form to guide you through the information about your application that we need to properly size and select an amplifier for your application. Please also see out Amplifier Sizing & Tools page for sizing calculators, white papers and other tools.

Model		Installation Drawing	STEP File
	VPS-LA-500VA Series 500VA Stand-Alone Linear Amplifier Power Supply - internal step down isolation transformer included. 120/240VAC 50/60Hz input. Outputs: +/-60VDC amplifier bus (10A continuous/25A Peak - Total continuous output power should not exceed 500VA), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Consult factory for other bus voltages.
	VPS-LA-1KVA Series 1KVA Stand-Alone Linear Amplifier Power Supply - internal step down isolation transformer included. 120/240VAC 50/60Hz input. Outputs: +/-60VDC amplifier bus (10A continuous/25A Peak - Total continuous output power should not exceed 1KVA), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Consult factory for other bus voltages.
	VPS-LA2A Series 2-Axis Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (10A continuous/25A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LA4A Series 4Axis Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (10A continuous/25A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 4 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LAHP-2A Series 2Axis High Power Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (30A continuous/55A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LAHP-4A Series 4Axis High Power Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (30A continuous/55A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 4 amplifiers. Amplifier bus voltage is dependent on the transformer selected.

Model		Installation Drawing	STEP File
	VTR-020-001 1KVA Single Phase Transformers - center tapped isolation step down transformer. 120/240VAC 50/60Hz Primary, 28/72 VCT secondary +/-40/100VDC after Varedan (VPS) Power Supply. * Non-standard secondary voltages are available with short lead-times.
	VTR-012-001 2KVA Single Phase Transformers - center tapped isolation step down transformer. 120/240VAC 50/60Hz Primary, 35/50 VCT secondary +/-50/70VDC after Varedan (VPS) Power Supply. * Non-standard secondary voltages are available with short lead-times.
	VTR-017-001 3KVA Three-Phase Transformers - center tapped isolation step down transformer. 208/220/240/480VAC 50/60Hz Primary, 61/122/171VAC VCT secondary +/-50/100/140VDC after Varedan (VPS) Power Supply. * Non-standard secondary voltages are available with short lead-times.
	VTR-018-001 6KVA Three-Phase Transformers - center tapped isolation step down transformer. 208/220/240/480VAC 50/60Hz Primary, 61/122/171VAC VCT secondary +/-50/100/140VDC after Varedan (VPS) Power Supply. * Non-standard secondary voltages are available with short lead-times.
	VTR-019-001 9KVA Three-Phase Transformers - center tapped isolation step down transformer. 208/220/240/480VAC 50/60Hz Primary, 61/122/171VAC VCT secondary +/-50/100/140VDC after Varedan (VPS) Power Supply. * Non-standard secondary voltages are available with short lead-times.

Model		Installation Drawing	STEP File
	VPS-LA-500VA Series 500VA Stand-Alone Linear Amplifier Power Supply - internal step down isolation transformer included. 120/240VAC 50/60Hz input. Outputs: +/-60VDC amplifier bus (10A continuous/25A Peak - Total continuous output power should not exceed 500VA), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Consult factory for other bus voltages.
	VPS-LA-1KVA Series 1KVA Stand-Alone Linear Amplifier Power Supply - internal step down isolation transformer included. 120/240VAC 50/60Hz input. Outputs: +/-60VDC amplifier bus (10A continuous/25A Peak - Total continuous output power should not exceed 1KVA), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Consult factory for other bus voltages.
	VPS-LA2A Series 2-Axis Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (10A continuous/25A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LA4A Series 4Axis Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (10A continuous/25A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 4 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LAHP-2A Series 2Axis High Power Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (30A continuous/55A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 2 amplifiers. Amplifier bus voltage is dependent on the transformer selected.
	VPS-LAHP-4A Series 4Axis High Power Linear Amplifier Power Supply - requires external single or three-phase center tapped isolation step down transformer. Inputs: 120/240VAC 50/60Hz @2A for powering +/-15VDC bias supply & amplifier fans, single or three-phase from secondary of center tapped isolation step down transformer for generating amplifier bus. Outputs: +/-VDC amplifier bus (30A continuous/55A Peak for each amplifier output), +/-15VDC amplifier bias, AC for amplifier fans. Supports up to 4 amplifiers. Amplifier bus voltage is dependent on the transformer selected.