ATTEN TPR32-5A POWER SUPPLY
The ATTEN TPR32-5A is a programmable laboratory DC power supply offering 0–32 V and 0–5 A from a single output. It regulates with a series-type linear stage under MCU control, so it keeps the low output noise that makes linear supplies the standard choice for analogue, audio and sensor work, while adding the memory, repeatability and remote operation of a digitally controlled instrument. Voltage and current are continuously adjustable and read back on two four-digit meters, with automatic changeover between constant-voltage and constant-current operation as the load demands.
A programmable bench supply
with a linear output stage.
The ATTEN TPR32-5A is a single-channel DC bench power supply delivering 0 – 32 V at 0 – 5 A. It uses a series-type linear regulator under MCU digital control, which keeps the low output noise and stability of an analogue supply while adding the repeatability, memory and remote control of a programmable instrument.
Ten memory positions each store a complete setup — voltage, current and the over-voltage and over-current limits — so a repeatable test condition is one key press away. A standard RS232 interface allows the supply to be driven from a PC, and an external control mode lets another instrument set its output. Two or more units can be combined master-slave, in series for a higher voltage or in parallel for more current.
It is intended for electronics development and test, equipment repair and ageing, training and teaching laboratories, and any application where the output has to be both accurate and repeatable.
What it does
0 – 32 V and 0 – 5 A
Continuously adjustable across the full range, with coarse and fine adjustment on one encoder. Dual four-digit meters show set and actual values.
MCU digital control
A series-type linear regulator under pure digital control — the stability of an analogue supply with the repeatability of a digital one.
Ten stored setups
Ten memory positions, each holding voltage, current and the OVP and OCP limits. Recall a known-good configuration instead of dialling it in again.
RS232 program control
A standard RS232 port for computer control, so the supply can be driven from a test script rather than by hand.
External control mode
An external input voltage can set the output voltage and current, which lets the supply be slaved to another instrument or a controller.
Master-slave expansion
Two or more units combine in series for more voltage or in parallel for more current, without external switching.
External monitoring outputs
Voltage and current are brought out as monitor signals, so a higher-precision meter can read the real output.
Temperature-controlled fan
A double-ball-bearing fan whose speed follows the internal temperature — quieter in normal use and longer-lived than a fixed-speed fan.
The programmable one
ATTEN's other single-channel linear supplies — the TPR3003T and TPR3005T — are manual instruments: you set them by hand and read them off the meters. They are excellent at that, and the TPR3003T has the lowest ripple in the range.
The TPR32-5A is the one you choose when the output has to be repeatable or remote: stored setups, RS232 control, external control input and monitor outputs. It also reaches 32 V rather than 30 V, which matters more often than it sounds — a nominal 24 V system tested at its upper tolerance needs about 30 V, and there is nothing left over on a 30 V supply.
| TPR3003T | TPR3005T | TPR32-5A | |
|---|---|---|---|
| Voltage | 0 – 30 V | 0 – 30 V | 0 – 32 V |
| Current | 0 – 3 A | 0 – 5 A | 0 – 5 A |
| Memory presets | — | — | 10 |
| RS232 control | — | — | Yes |
| External control | — | — | Yes |
| Series / parallel | — | — | Master-slave |
Technical data
Output
| Output voltage | 0 – 32 V, continuously adjustable |
| Output current | 0 – 5 A, continuously adjustable |
| Operating modes | CV (constant voltage) / CC (constant current), automatic changeover |
| Regulation | Series-type linear regulator, MCU controlled |
Display & control
| Meters | Two four-digit high-precision displays (voltage and current) |
| Adjustment | Rotary encoder with coarse and fine steps, V-SET and I-SET keys |
| Memory | 10 presets, each including the OVP and OCP values |
| Lock | Status lock to prevent accidental adjustment |
Protection
| Over-voltage | OVP, value stored per memory preset |
| Over-current | OCP, value stored per memory preset |
| Alarm | Audible / visual alarm on protection trip |
Remote & expansion
| Interface | RS232, standard connector |
| Program control | Computer control of output parameters |
| External control | External input voltage sets output voltage and current |
| External monitoring | Voltage and current monitor outputs |
| Series / parallel | Master-slave expansion between units |
General
| Cooling | Double-ball-bearing fan, speed controlled by internal temperature |
| Terminals | Positive, negative and chassis ground on the front panel |
| Variants | The listing also covers the TRR75-2A — ask us which suits your application |
What you receive
- TPR32-5A main unit
- Mains cord
- User manual
Shipped from Helmond in the Netherlands. In-stock orders placed before 15:00 go out the same working day, and EU shipping is free over €200.
Other ATTEN bench supplies
All seven are compared side by side on the DC power supplies page.
Questions before you order?
Tell us what you need to power and whether you intend to control the supply from a PC — we will confirm this is the right model, and which variant on this listing you need. Two-year warranty, handled here in the Netherlands.
Frequently asked questions
What output does the TPR32-5A give?
0 – 32 V and 0 – 5 A, both continuously adjustable, with automatic changeover between constant voltage and constant current.
What is the difference between this and the TPR3005T?
Both are single-channel linear supplies at 5 A. The TPR3005T is manual only. The TPR32-5A adds MCU control, an RS232 port for computer control, ten stored setups including their OVP and OCP limits, an external control mode and master-slave series/parallel expansion — and it goes to 32 V rather than 30 V.
Can I control it from a PC?
Yes — it has a standard RS232 interface and supports computer program control, so output parameters can be set from a test script rather than by hand.
Can two units be combined?
Yes. The TPR32-5A supports master-slave operation: two units in series for a higher voltage, or in parallel for more current, without external switching.
What is the TRR75-2A on the same listing?
A second variant sold under the same product listing. Tell us which one you need when you order and we will confirm availability — or mail info@atten.eu first if you are not sure which suits your application.
What warranty applies?
Two years on the unit, handled from the Netherlands. Consumables are not covered, but a bench supply has none.
Specifications are taken from ATTEN's product documentation and are provided for guidance only. They are subject to change without notice, and errors and omissions may occur. The manufacturer's official datasheet is the definitive reference. If a particular figure is critical to your application, please confirm it with us before ordering.