AC-DC Power Supplies
Wide-Input SMPS & Variable Bench DC Supplies Built in Nashik
Most industrial SMPS modules quote an input range of 85–265 VAC. That covers the world's mains sockets and very little else. The moment a supply has to run off a 415 V three-phase line-to-line feed, an industrial bus that sags and surges across a shift, or a rural supply that does neither of the things the datasheet assumed, that range stops being enough — and the usual fix is a step-down transformer bolted into a cabinet that had no room for one.
Ameet Electro Systems (Nashik, Maharashtra) manufactures AC-DC power supplies for industrial equipment, high-voltage assemblies, and test benches. Our wide-range SMPS accepts 90 VAC to 500 VAC on a single part number — one module that runs from a 110 V socket, a 230 V socket, or a 415 V industrial line without a transformer in front of it. Alongside it we build fixed and variable bench DC supplies for laboratory, QC, and training use.
Every unit is designed, assembled, and tested in-house at our facility in Satpur MIDC, Nashik. We have been manufacturing electronic assemblies here since 2008. We supply domestically across India and export internationally, despatched FOB Nhava Sheva (JNPT), Navi Mumbai.
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Embedded SMPS or Bench Supply — Which to Specify
Our range splits into two families that answer different questions. Buyers occasionally ask for one when they need the other, so it is worth separating them before the product list.
Embedded SMPS Modules
A switched-mode power supply module is built into your equipment and forgotten. It has one job: convert incoming AC to a single regulated DC rail, at a fixed voltage, for the life of the machine. It has no front panel, no adjustment, and no display, because nobody should be adjusting it after commissioning.
When to specify an embedded SMPS:
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Powering control electronics, relays, sensors, or indication inside a panel or machine
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Any application where the supply is installed once and never touched again
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Situations where the incoming supply voltage is uncertain, unstable, or varies between deployment sites
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OEM builds where the same product ships to territories with different mains standards
Variable Bench DC Supplies
A bench supply is an instrument. It sits on a workbench with a front panel, adjustable output, and metering, and its value is that you can dial in a voltage, watch the current, and change both while you work.
When to specify a bench supply:
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Development, test, repair, and fault-finding work
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QC benches where a device under test must be brought up gradually or run at several operating points
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Teaching and training laboratories
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Any situation where the output needs to be adjusted or observed
The Selection Rule
If a human needs to adjust it, specify a bench supply. If it lives inside a machine and runs at one voltage forever, specify an SMPS module — and if the incoming supply is anything other than a well-behaved 230 V socket, specify a wide-input one.
If your application does not fall cleanly on one side, contact us with the equipment, the required output, and the incoming supply at the site. We will advise without obligation.
Product Range
1 — PSU-SWR01-12V25W — Wide Range SMPS
The PSU-SWR01 accepts any input from 90 VAC to 500 VAC and delivers a regulated 12 VDC rail at 25 W. That input span is the reason the product exists: it covers 110 V and 230 V single-phase mains, 415 V three-phase line-to-line, and the industrial supplies in between, on one part number.
For an equipment builder, this collapses a stocking problem. A machine shipped to three territories, or a panel fed from whatever the site happens to provide, uses the same module in every build — no input-voltage variant to select at order time, no step-down transformer, no wrong-variant returns from the field. For maintenance teams, it means one spare on the shelf covers every cabinet in the plant.
It is also the reason the module tolerates supplies that misbehave. A feeder that sags to 180 V under load and settles at 440 V overnight stays comfortably inside the range at both extremes.
Primary applications: Control electronics inside industrial panels and machines; sensor and relay supply rails; HV assembly auxiliary supplies; OEM equipment shipped across multiple mains territories; sites with unstable or non-standard incoming supply.
Other output voltages: If you need a rail other than 12 V, or more than 25 W, tell us the voltage, current and physical envelope — see Custom Specifications below. The wide-input argument applies the same way whatever the output rail.
2 — DC Power Supply, 0–36 V / 10 A (Variable)
Variable output · 10 A · Bench instrument
The largest supply in our bench range, adjustable from 0 to 36 V at up to 10 A. The current rating is what distinguishes it: 10 A is enough to run motors, solenoids, contactors, automotive 12 V and 24 V loads, and power-electronics prototypes that a 1 A laboratory supply cannot bring up at all.
The 0–36 V span covers 12 V and 24 V nominal systems with margin above both, which suits automotive and industrial control work where a supply frequently has to be taken above nominal to test regulation and protection behaviour.
Primary applications: Motor, solenoid, and contactor testing; automotive 12 V / 24 V bench work; power-electronics development; QC benches running devices at several operating points.
3 — DC Power Supply, ±15 V / 1 A (Fixed)
Fixed dual rail · ±15 V · 1 A
A fixed dual-rail supply providing +15 V and −15 V at 1 A. This is the standard rail pair for analogue circuitry — operational amplifiers, instrumentation amplifiers, analogue signal conditioning, and comparator circuits — where a symmetrical supply about ground is required and a single-rail bench supply will not do.
Because the output is fixed, there is nothing to set incorrectly. For a teaching laboratory or a production test bench running the same analogue assembly repeatedly, that is a feature rather than a limitation.
Primary applications: Analogue circuit development and test; op-amp and instrumentation-amplifier benches; signal-conditioning assemblies; electronics teaching laboratories.
4 — DC Power Supply, 0–30 V / 0–1 A (Variable)
Variable output · Variable current limit · Bench instrument
A general-purpose variable bench supply adjustable from 0 to 30 V, with output current adjustable from 0 to 1 A. The adjustable current limit is the useful part: setting a ceiling before power is applied means a shorted or mis-wired board draws the limit instead of whatever the supply can deliver, which is how prototypes survive their first power-up.
This is the standard bench supply for development work, electronics teaching, and repair — the one that spends its life on a workbench being adjusted.
Primary applications: Electronics development and prototyping; repair and fault-finding benches; ITI, polytechnic, and engineering-college electronics laboratories; low-power device testing.
Looking for a training bench rather than a power supply? The DB-A01-R4 demo bench — which teaches AC and DC fundamentals on a portable fixture and carries its own 12 VDC SMPS — sits in our Custom Automotive Training Kits range. It is a teaching product, not a power supply product.
Why 90–500 VAC Changes What You Have to Stock
The input range on a power supply looks like a specification detail until it becomes a logistics problem.
A standard 85–265 VAC module forces a decision at order time: which input variant does this unit need? That decision has to be right at the point of manufacture, held correctly through the supply chain, and repeated for every spare that ships to every site. When it is wrong, the failure appears at commissioning — in another country, in front of the customer.
A 90–500 VAC input removes the decision:
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One part number, every territory. The same module works on 110 V North American mains, 230 V Indian and European mains, and 415 V three-phase line-to-line. No variant selection, no regional BOM.
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One spare covers the plant. Maintenance stores hold a single item instead of matching each cabinet to its input variant.
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No step-down transformer. Panels fed from a 415 V line take the module directly, saving the transformer, its enclosure space, its heat, and its cost.
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Tolerance of a supply that misbehaves. Feeders that sag under load or rise off-peak stay inside the range at both ends, rather than tripping the supply's input protection at one of them.
This is also why the module suits high-voltage assemblies, where auxiliary electronics frequently sit in a cabinet fed from an industrial line rather than a convenient socket.
Standards and Quality
In-house manufacture: All power supplies are designed, assembled, and tested in-house at Satpur MIDC, Nashik — Maharashtra's established industrial corridor. We have been manufacturing electronic assemblies in-house since 2008.
Pre-dispatch testing: Every unit is tested in-house before it ships, and all power supplies are manufactured under strict quality control. If your process requires a specific test regime or a test report with the shipment, tell us at enquiry stage and we will confirm in writing what we can supply against it before you order.
Compliance marking: Requirements differ by market. Tell us which marking your market requires — and the country the units are going to — with your enquiry, and we will confirm what we can supply against that requirement before you place the order rather than after.
MSME / Registration: Ameet Electro Systems is MSME UDYAM registered (UDYAM-MH-23-0235305), with export credentials (IEC 3116911487). GSTIN: 27AHZPP6922A1ZY.
Custom Specifications
Our standard range covers the output rails and bench configurations most commonly required in industrial and laboratory use. For requirements outside it — a different output voltage or wattage on the wide-range SMPS platform, a multi-rail configuration, a specific mechanical format, or a supply built into an existing assembly — we design to the buyer's brief.
To enquire about a custom specification, provide:
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Required output voltage(s), current, and total wattage
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Incoming supply at the installation site (voltage, phases, stability)
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Format required (embedded module / chassis / bench instrument / DIN rail)
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Physical envelope constraints
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Any compliance marking your market requires
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Quantity and required delivery timeline
We will respond with a feasibility assessment within one working day.
Export
We supply power supplies internationally. Export shipments are packed for sea freight and despatched FOB Nhava Sheva (Jawaharlal Nehru Port, Navi Mumbai). We provide commercial invoice, packing list, and Certificate of Origin (India). Buyers handle import customs in their own country.
Lead time: Confirmed with your quotation. It depends on the product, the configuration and the quantity, so we give you a despatch date alongside the price rather than a range that may not hold — tell us the product and quantity and you will have both within one working day.
Supply voltage: The PSU-SWR01 wide-range SMPS accepts 90–500 VAC and needs no configuration for any market — that is the point of it. For the bench supplies, tell us the mains voltage at the deployment site with your enquiry and we will confirm the configuration before you order.
Datasheets: Available on request for all power supply lines. Provide your email or use the contact form below.
Who We Supply
We supply AC-DC power supplies to:
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Industrial equipment and machine builders embedding supplies in control panels
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Panel builders and switchgear assemblers specifying auxiliary DC rails
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High-voltage equipment manufacturers powering auxiliary and control electronics
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Test laboratories, QC benches, and calibration facilities
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Technical institutes, polytechnics, and engineering colleges equipping electronics laboratories
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Maintenance and service teams standardising on a single spare across mixed supply voltages
Specific client names are not published without per-client permission; references are available under NDA.
AC-DC Power Supplies
Frequently Asked Questions
What does "wide input range" actually mean on an SMPS?
It is the span of AC input voltage over which the supply holds its rated DC output. A typical industrial module is specified at 85–265 VAC, which covers single-phase mains worldwide. Our PSU-SWR01 is specified at 90–500 VAC, which additionally covers 415 V three-phase line-to-line and industrial supplies well above socket voltage. The practical consequence is that one part number works everywhere, with no input variant to select and no step-down transformer.
Can one SMPS really run on both 230 V and 415 V?
Yes — that is precisely what a 90–500 VAC input range is for. The PSU-SWR01 delivers the same regulated 12 VDC output whether it is fed from a 110 V socket, a 230 V socket, or a 415 V industrial line. This is why equipment builders shipping to multiple territories, and maintenance teams holding spares for mixed installations, specify a wide-input module rather than stocking variants.
What is the difference between an SMPS module and a bench power supply?
An SMPS module is built into equipment, has a fixed output, and is not intended to be adjusted after commissioning. A bench power supply is an instrument with a front panel, adjustable output, and metering, designed to be changed while you work. Specify the module for anything that lives inside a machine; specify the bench supply for development, test, repair, and teaching.
Why does a bench supply need an adjustable current limit?
Setting a current ceiling before applying power means a shorted or mis-wired board draws only the limit you set, instead of everything the supply can deliver. It is the difference between a prototype that survives its first power-up and one that does not. Our 0–30 V / 0–1 A supply has adjustable current from 0 to 1 A for this reason.
Why is a ±15 V supply fixed rather than variable?
±15 V is the standard symmetrical rail pair for analogue circuitry — op-amps, instrumentation amplifiers, and signal conditioning — and those circuits want exactly that voltage. Making it fixed removes the possibility of setting it wrong, which is an advantage on a teaching bench or a production test station running the same assembly repeatedly.
Are AES power supplies tested before dispatch?
Yes. Every unit is tested in-house before it ships, and all power supplies are manufactured under strict quality control at our Nashik facility. If your process requires a specific test regime or a test report with the shipment, raise it with your enquiry and we will confirm in writing what we can supply before you order.
What is the typical lead time and shipping term for power supply orders?
Lead time is confirmed with your quotation — it depends on the product, its configuration, and the quantity, so we give you a despatch date alongside the price rather than a range that may not hold. Export shipments are despatched FOB Nhava Sheva (JNPT, Navi Mumbai), and we provide commercial invoice, packing list, and Certificate of Origin (India). For volume orders, contact us to discuss scheduling.
Can AES build a power supply to a specific output specification?
Yes. Share the required output voltage and current, the incoming supply at the installation site, the physical format, and any compliance marking your market requires. We will respond with a feasibility assessment within one working day.
Request a Board Specification
Request Datasheet or Specification
Provide:
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Product of interest (wide-range SMPS / variable bench supply / fixed dual-rail supply / custom)
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Required output voltage and current
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The incoming AC supply at the installation site
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Quantity required
