Programmable power supplies and test instruments Twintex / Twintex Instrument

Engineering selection and turnkey export delivery of Twintex / Twintex Instrument programmable DC power supplies, oscilloscopes, and test instruments for electronics manufacturing and testing.

PWS series high-power programmable DC power supplies

Twintex Instrument (TWINTEX) PWS series switching DC power supplies deliver output power from 1.8kW to 15kW using IGBT power modules and PWM modulation. Supporting parallel connection of 2 to 8 units, they supply scalable DC power for burn-in testing and automation.

Output voltage ranges up to 1000V and current up to 500A across 2U and 3U standard rack enclosures
Parallel configuration across 2 to 8 units for proportional load current scaling and redundancy
Comprehensive integrated hardware protection featuring OVP, OCP, and overtemperature circuitry
Standard remote programming via RS-232, RS-485 interfaces and isolated analog control ports

PCL series high-current low-voltage DC power supplies

Twintex Instrument (TWINTEX) PCL series rack-mount power supplies are engineered for low-voltage, high-current industrial testing. Delivering continuous currents from 200A to 600A at voltages below 60V, they power cable verification, relay tests, and battery formation.

Continuous output currents from 200A to 600A across low-voltage levels of 5V, 10V, 15V, and 60V
Precision regulation and high power density optimized for round-the-clock industrial applications
Engineered for battery formation, contact resistance testing, and heavy-duty plating processes
Intelligent fan cooling architecture adapting fan speeds dynamically to internal thermal loads

PPS and PPW series precision laboratory DC power supplies

Twintex Instrument (TWINTEX) PPS, PPW, and PPA series bench-top programmable DC power supplies are designed for R&D laboratories and calibration facilities. Combining low ripple and noise with high setpoint accuracy, they ensure dependable power for sensitive circuits.

Linear and switching architectures achieving ripple and noise levels under 1 mV RMS
High setting resolution down to 1 mV for output voltage and 0.1 mA for current monitoring
Automatic crossover between Constant Voltage (CV) and Constant Current (CC) operating modes
Non-volatile parameter storage memories and standard SCPI programming command compatibility

Programmable variable AC power sources and grid simulators

Twintex Instrument (TWINTEX) programmable variable AC power sources deliver sinusoidal output with adjustable frequency and amplitude. They simulate line dropouts, voltage surges, and frequency deviations to validate avionics, consumer appliances, and power converters.

Wide adjustable output frequency from 45 Hz to 500 Hz with output voltages reaching 300 V RMS
Advanced power line disturbance simulation generating sags, surges, dropouts, and harmonics
High crest factor and inrush current capability accommodating inductive motor and PSU loads
Comprehensive metering display for true RMS voltage, current, active power, and power factor

Digital and analog dual-channel laboratory oscilloscopes

The Twintex Instrument (TWINTEX) oscilloscope line comprises modern digital storage oscilloscopes (DSO) and field-proven analog dual-trace models of the TOS series. Delivering dependable waveform acquisition, they serve electronic repair benches, education, and labs.

Digital storage oscilloscopes offering bandwidths up to 200 MHz and sample rates up to 1 GSa/s
Classic dual-channel TOS analog oscilloscopes with high-brightness CRT display tubes
Integrated automated parameter measurement, waveform math functions, and real-time FFT mode
Versatile trigger modes covering edge, pulse width, video, and alternate channel sync

DDS arbitrary function and RF signal generators

Twintex Instrument (TWINTEX) signal generators employ Direct Digital Synthesis (DDS) technology to generate ultra-stable sine, square, pulse, and arbitrary waveforms up to 100MHz. They support internal and external modulation modes including AM, FM, FSK, and sweeps.

Output frequency coverage from 5 MHz to 100 MHz backed by high-stability internal timebases
Native output of standard waveforms (sine, square, ramp, triangle) and custom arbitrary forms
Comprehensive modulation capabilities including AM, FM, FSK, linear sweep, and burst bursts
Integrated high-precision frequency counter operating up to 100 MHz for external signal audit

Programmable DC electronic loads for power supply testing

Twintex Instrument (TWINTEX) programmable electronic loads perform rigorous testing of DC power supplies, EV chargers, battery packs, and power converters. Operating across CC, CV, CP, and CR modes, they ensure comprehensive static and dynamic electrical verification.

Power dissipation ratings from 150W to 600W with operating ranges up to 500V and currents to 60A
Four fundamental operating modes: constant current (CC), voltage (CV), power (CP), resistance
Dynamic transient load testing featuring programmable current slew rates and speeds to 25kHz
Dedicated automated battery capacity discharge profiling with cutoff voltage and time logging

Precision benchtop LCR meters and high-count digital multimeters

Twintex Instrument (TWINTEX) LCR7000 series LCR meters and TM-8055 / TM-8155 benchtop multimeters deliver precision electrical verification for passive components and semiconductors. Offering 0.05% basic accuracy and frequencies up to 500kHz, they streamline QC sorting.

LCR test frequencies selectable from 10 Hz to 500 kHz with customizable AC test signal levels
Basic measurement accuracy of 0.05% with simultaneous monitoring of L, C, R, D, and Q values
Bench multimeters with 4 1/2 and 5 1/2 digits, True RMS detection, and 80000 display counts
Integrated multi-bin comparator and sorting limits for rapid incoming component screening

Topology of PWS series switching power supplies with IGBT modules

The Twintex Instrument (TWINTEX) PWS series of high-power programmable switching DC power supplies is engineered around robust Insulated-Gate Bipolar Transistor (IGBT) switches and high-frequency pulse-width modulation (PWM).

This architectural approach drastically curtails dynamic switching dissipation while securing continuous full-load electrical efficiencies exceeding 88% across industrial operational envelopes.

To deliver high power density up to 15 kW within a compact 3U rack chassis, the power stage utilizes a dual-stage conversion scheme.

The primary active power factor correction (PFC) stage maintains constant intermediate DC link voltage, while the resonant high-frequency inverter synthesizes stable output voltage up to 1000V with low residual ripple.

Parallel master-slave scaling of PCL high-current power sources

Designed specifically for heavy-duty plating, battery cell formation, and high-power conductor heat testing, the Twintex Instrument (TWINTEX) PCL series supplies high DC currents up to 600A.

When testing demands exceed single-chassis ratings, units connect seamlessly via a synchronized Master-Slave parallel communication bus.

An internal active current-sharing bus equalizes current delivery across parallel chassis within narrow single-digit tolerances.

Each PCL chassis incorporates an intelligent forced-air duct system that regulates fan speed based on thermal sensor readings, preventing localized hot spots across high-current copper busbars and diode rectification assemblies.

Circuit architecture of precision PPS and PPW bench laboratory supplies

Engineered for electronic design, calibration benches, and precision sensor development, the Twintex Instrument (TWINTEX) PPS, PPW, and PPA benchtop programmable power supplies feature clean post-regulation topologies.

Linear secondary regulation suppresses high-frequency switching artifacts, holding voltage ripple and noise figures strictly below 1 mV RMS.

Microprocessor supervisory logic continuously monitors seamless transitions between constant voltage (CV) and constant current (CC) operating thresholds.

High-resolution digital-to-analog converters facilitate fine output voltage adjustments down to 1 mV steps, while dedicated sensing circuits deliver precision current readback resolution down to 0.1 mA.

Power line disturbance simulation in programmable AC power sources

The programmable variable AC power sources from Twintex Instrument (TWINTEX) utilize high-speed digital synthesis to deliver pure sinusoidal power across a variable output frequency range of 45 Hz to 500 Hz.

These units are built to evaluate switch-mode power supplies, household appliances, and electric motors against international power standards.

Programmable sequence registers allow test engineers to reproduce critical grid fault conditions: sudden voltage sags, transient surges, temporary dropouts, frequency variations, and harmonic distortion profiles.

By subjecting equipment to real-world power irregularities, manufacturers identify circuit vulnerabilities prior to commercial field deployment.

Architecture of TOS analog oscilloscopes and digital DSO series

Twintex Instrument (TWINTEX) offers a dual portfolio encompassing both classic dual-trace analog cathode ray tube (CRT) oscilloscopes of the TOS series and modern high-speed digital storage oscilloscopes (DSO).

Analog models remain valued in educational laboratories and service shops for displaying real-time waveforms without digital aliasing.

In parallel, Twintex digital storage oscilloscopes are built around high-speed flash ADCs providing real-time sampling rates up to 1 GSa/s with analog bandwidths up to 200 MHz.

The digital acquisition pipeline integrates deep waveform memory, automated cursor measurements, math channels, and fast Fourier transform (FFT) analysis.

Direct digital frequency synthesis DDS in Twintex signal generators

The signal generator line from Twintex Instrument (TWINTEX) leverages Direct Digital Synthesis (DDS) architecture.

A reference signal derived from a temperature-compensated crystal oscillator with 5 ppm frequency stability drives a precision phase accumulator and a high-resolution waveform lookup table.

This technology delivers low phase noise and minimal harmonic distortion for sine, square, ramp, and pulse waveforms spanning 5 MHz to 100 MHz.

The instruments support comprehensive modulation schemes including AM, FM, and FSK, alongside linear frequency sweeps and burst triggering for receiver alignment and communication channel characterization.

Static and dynamic load profiles in DC programmable electronic loads

Covering power dissipation envelopes from 150W to 600W and beyond, Twintex Instrument (TWINTEX) programmable electronic loads execute static and transient characterization of power supplies, battery cells, and solar arrays.

The power MOSFET absorption matrix supports Constant Current (CC), Constant Voltage (CV), Constant Power (CP), and Constant Resistance (CR) modes.

In transient dynamic mode, the electronic load switches current absorption at programmable slew rates up to 25 kHz.

This stress testing evaluates transient response speed, loop recovery time, and regulation stability under rapid load changes encountered in telecommunications and industrial power conversion.

Four-wire Kelvin measurements and bridge circuits in LCR7000 meters

The LCR7000 series digital LCR meters and high-accuracy bench multimeters (TM-8055, TM-8155) from Twintex Instrument (TWINTEX) incorporate true four-wire Kelvin test geometry.

Separating current-carrying drive leads from high-impedance voltage sensing lines eliminates measurement errors caused by test lead resistance and contact oxidation.

The internal precision AC bridge provides programmable test frequencies from 10 Hz up to 500 kHz with adjustable signal excitation levels and DC bias voltages.

The instrument evaluates primary and secondary impedance parameters: inductance (L), capacitance (C), resistance (R), dissipation factor (D), and quality factor (Q) with basic 0.05% accuracy.

Twintex / Twintex Instrument and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Twintex / Twintex Instrument and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.