Microtest DCS-3100 Series DC Power Supply

The Microtest DCS-3100 Series is a family of compact, wide-range programmable DC power supplies spanning four power tiers, 400W, 800W, 1200W, and 2000W, with output voltages up to 650V and output currents up to 200A. Each unit operates in constant-voltage (CV) or constant-current (CC) mode with a user-selectable CV/CC priority at power-on, preventing voltage or current overshoot during transitions. The series is designed for semiconductor ATE racks, EV power module validation, battery and BMS simulation, and bench R&D in India’s electronics and automotive manufacturing sector.

Microtest DCS-3100 Key Features

• CV/CC Priority Mode: selectable at power-on to prevent voltage or current overshoot when switching operating modes
• Transient response under 1ms on 40V models; 3ms or less on 650V models for responsive load following
• LIST Programmable Sequencing: 64 steps per program, up to 99,998 cycles, 16 section loops for automated test profiles
• Synchronous Trigger I/O: coordinate multiple units without a PC after initial setup using hardware trigger lines
• VMCB Architecture: single-PC control of up to 31 units over LAN for large ATE and burn-in racks
• Single-Control Parallel Mode: up to 3 units in parallel (400W/800W tiers) or 2 units (1200W/2000W tiers) for combined high-current output; three DCS3108A units deliver 240A at 40V, two DCS3120A units deliver 400A at 40V
• Series Mode: 2 units in series for double voltage on A/B/C voltage-range models
• Internal Resistance Simulation: CV mode voltage sag mirrors battery and solar cell V-I curves; programmable via LAN/USB/RS-232C for state-of-health test profiles
• Selectable Bleeder Circuit: OFF, Normal, or Hyper mode (up to 70% faster discharge) for safe energy-storing DUT handling
• Front Panel 10A Output Terminals (CAT II, Max 15A) with optional safety plugs for bench measurements without rear wiring
• Built-in Web Server: monitor and control from any browser on the local network
• 3 Preset Memory sets storing V, I, OVP, OCP, and UVL for fast job changeover
• 3 System Configuration Shortcut Keys (SC1/SC2/SC3) for operator convenience on production floors
• Industrial-grade thermal design: stable operation from 0°C to 50°C ambient; forced-air cooling
• Comprehensive protection suite: OVP, OCP, FOCP (front terminal), UVL, OHP, SENSE, AC-FAIL, SD, WATCHDOG, and PRL ALM

DCS-3100 Models: 400W to 2000W DC Power Supply

The DCS-3100 family is organized by power tier (3104 = 400W, 3108 = 800W, 3112 = 1200W, 3120 = 2000W) and voltage range (A = 40V, B = 80V, C = 240V, D = 650V). Select the model that matches your DUT’s voltage and current envelope.

Model	Rated Power	Output Voltage	Max Current
DCS3104A	400 W	0–40 V	0–40 A
DCS3104B	400 W	0–80 V	0–20 A
DCS3104C	400 W	0–240 V	0–5 A
DCS3104D	400 W	0–650 V	0–1.85 A
DCS3108A	800 W	0–40 V	0–80 A
DCS3108B	800 W	0–80 V	0–40 A
DCS3108C	800 W	0–240 V	0–10 A
DCS3108D	800 W	0–650 V	0–3.70 A
DCS3112A	1200 W	0–40 V	0–120 A
DCS3112B	1200 W	0–80 V	0–60 A
DCS3112C	1200 W	0–240 V	0–15 A
DCS3112D	1200 W	0–650 V	0–5.55 A
DCS3120A	2000 W	0–40 V	0–200 A
DCS3120B	2000 W	0–80 V	0–100 A
DCS3120C	2000 W	0–240 V	0–25 A
DCS3120D	2000 W	0–650 V	0–9.25 A

Applications: Battery Simulation, ATE, and EV Power Testing in India

Semiconductor ATE, IGBT, SiC, GaN Device Characterization

High-voltage and high-current semiconductor devices require precise DC bias during parametric testing in ATE racks. The DCS-3100D models (0–650V) cover the gate and drain bias ranges for IGBT and SiC MOSFETs used in inverter and motor drive applications. VMCB multi-unit control over LAN allows a single test executive to address banks of supplies without individual instrument drivers. For semiconductor and electronics design teams building characterization or production ATE in India, the DCS-3100 integrates with standard VISA/SCPI instrument stacks.

Battery and BMS Testing, Li-Ion and Lead-Acid Simulation

The internal resistance simulation mode in the DCS-3100 reproduces the discharge V-I curve of 12V, 24V, and 48V battery packs, enabling BMS algorithms to be tested against realistic source impedance profiles. Programmable resistance values via LAN or USB allow automated state-of-health sweeps. For EV and energy systems teams qualifying BMS firmware or checking cell balancing circuits, this eliminates the need for physical battery racks during early-stage bench validation.

EV Power Module Validation, Inverter and DC-DC Converters

High-current parallel configuration supports up to 3 DCS3104A units (400W each, 40A each) in parallel for a combined 120A output, or 3 DCS3108A units for 240A, covering most 12V/24V/48V inverter and DC-DC converter input validation requirements. The 2000W DCS3120A provides up to 200A as a single unit. For EV power module test programmes running at production scale, the LIST sequencing feature automates charge and discharge profiles across test cycles without manual intervention.

Capacitor and Diode Characterization, High-Voltage I-V Curves

The DCS3104D through DCS3120D models provide up to 650V output for I-V curve tracing, aging, and leakage testing on high-voltage capacitors and power diodes used in PFC stages and power conversion circuits. The fast transient response (under 3ms at 650V) ensures the source settles quickly between test points in sweep measurements.

R&D Bench and Design Validation

The front panel 10A output terminals with optional CAT II safety plugs allow engineers to connect directly at the bench without rear-panel wiring, which suits rapid-prototype evaluation. The built-in web server and 3 preset memory sets make it practical for mixed-use labs where multiple engineers share instruments. For industrial automation and production test environments deploying DCS-3100 units in automated cells, the WATCHDOG and PRL ALM protections provide system-level fault signaling.

Buy Microtest DCS-3100 in India: GSAS Engineering Support

GSAS is an authorized Microtest engineering partner since 2023. Our application engineers in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, and Delhi NCR support DCS-3100 evaluation, system integration, and commissioning.

• Authorized Microtest engineering partner since 2023
• Local FAE support for ATE integration, LIST sequencing setup, and VMCB multi-unit configuration
• Hands-on training and demonstration units available from our regional offices
• Manufacturer warranty with local support coordination through GSAS