KORAD KA Series Digital Control and Programmable DC Power Supply

Manufacturer: KORAD TECHNOLOGY CO., LTD.

Introduction

KORAD TECHNOLOGY CO., LTD. launches the KA series digital control and programmable regulated DC power supplies with industrial-grade performance. These units feature complete digital control, encoder voltage and current adjustment, and fast recall capabilities. They are configurable for overvoltage and overcurrent protection and include an intelligent temperature-controlled fan. The design emphasizes stability and reliability through meticulous circuit design and internal construction. The series offers compact and portable single and dual DC power supplies with voltage outputs from 30V to 100V and current outputs from 2A to 10A.

Applications

Automatic Testing in the Production Line
School Laboratories
Repairing
Research & Development (R&D)
Quality Control (QC)
Aging Tests

Main Features

Complete digital control / programmable
4-digit display
Intelligent temperature-controlled fan with speed controlled by heat temperature and output power
Compact Design
10 mV / 1 mA resolution
Low noise and ripple
CV / CC automatic switching
Output ON/OFF control
Complete digital panel operation
5 sets of parameters can be stored for fast recall
Fine & coarse adjustment for voltage / current control
Software calibration
Beep alarm output
Panel LOCK function
Settable OCP (Over-current Protection) and OVP (Over-voltage Protection)
Reverse polarity protection
Built-in control interfaces: USB / RS232 with photoelectric isolation
Industrial grade, suitable for long-term load operation

Voltage and Current Generation

The KA3000/6000 series power supplies provide output voltages from 30V to 60V, with a resolution of 10 mV for voltage and 1 mA for current.

Intuitive Operation and Parameter Recall

The power supplies offer professional design and intuitive operation. Multiple power supplies can be connected in parallel. Five sets of parameters can be stored internally for quick recall by pressing one of the four memory buttons (M1, M2, M3, M4). The selected memory setting is indicated by an LED, and the value is automatically saved once adjustment stops blinking.

Load Protection Features

To prevent damage to connected loads, the power supplies feature Over-current Protection (OCP) and Over-voltage Protection (OVP). The front panel can be locked using the Panel LOCK function to prevent accidental or improper operation during critical tests.

Front Panel Description

The front panel includes:

Display of voltage & current value: Shows the output voltage and current.
Power Supply Indicator: Indicates the power status.
Memory Recall/Save Buttons (M1-M4): For storing and recalling up to 5 sets of parameters.
UNLOCK / LOCK Button: For panel lock function.
BEEP Button: Controls the beep alarm.
OCP Button: Over-current Protection On/Off.
OVP Button: Over-voltage Protection On/Off.
Output ON/OFF Button: Controls the power output.
Power ON/OFF Button: Main power switch.
ADJUST Knob: Rapid adjustment knob for voltage & current.
< Button / > Button: Coarse and fine adjustment buttons for voltage/current.
Voltage / Current Selection Button: Switches between voltage and current adjustment modes.
Output Terminals: Positive, negative, and ground output terminals.
Indicators: Over-Volt Protection Active, Over-current Protection Active, Constant Current Mode, Constant Voltage Mode, Output On/Off Indicator, Setting Memory Indicator.

Rear Panel Description

The rear panel includes:

Fan Vent: For cooling the unit.
USB Interface: For communication and control (on programmable models).
RS232 Interface: For communication and control (on programmable models).
Power Socket: Standard AC power input, includes fuse socket.

Specifications

Note: Specifications are tested under conditions of 25°C ± 5°C and after a 20-minute warm-up.

Models	KA3003	KA3005	KA3010	KA6002	KA6003	KA6005
Voltage Range	0-30 V	0-30 V	0-30 V	0-60 V	0-60 V	0-60 V
Current Range	0-3 A	0-5 A	0-10 A	0-2 A	0-3 A	0-5 A
Load Regulation - Voltage	≤ 0.01% + 2mV	≤ 0.01% + 2mV	≤ 0.01% + 3mV	≤ 0.01% + 2mV	≤ 0.01% + 2mV	≤ 0.01% + 2mV
Load Regulation - Current	≤ 0.1% + 5mA	≤ 0.1% + 10mA	≤ 0.1% + 20mA	≤ 0.1% + 5mA	≤ 0.1% + 5mA	≤ 0.1% + 10mA
Line Regulation - Voltage	≤ 0.01% + 3mV	≤ 0.01% + 3mV	≤ 0.01% + 3mV	≤ 0.01% + 3mV	≤ 0.01% + 3mV	≤ 0.01% + 3mV
Line Regulation - Current	≤ 0.1% + 3mA	≤ 0.1% + 3mA	≤ 0.1% + 3mA	≤ 0.1% + 3mA	≤ 0.1% + 3mA	≤ 0.1% + 3mA
Setup Resolution - Voltage	10 mV	10 mV	10 mV	10 mV	10 mV	10 mV
Setup Resolution - Current	1 mA	1 mA	1 mA	1 mA	1 mA	1 mA
Setup Accuracy (25°C ± 5°C) - Voltage	≤ 0.5% + 20mV	≤ 0.5% + 20mV	≤ 0.5% + 20mV	≤ 0.5% + 30mV	≤ 0.5% + 30mV	≤ 0.5% + 30mV
Setup Accuracy (25°C ± 5°C) - Current	≤ 0.5% + 5mA	≤ 0.5% + 10mA	≤ 0.5% + 20mA	≤ 0.5% + 5mA	≤ 0.5% + 10mA	≤ 0.5% + 5mA
Ripple (20-20MHz) - Voltage	≤ 1 mVrms	≤ 2 mVrms	≤ 2 mVrms	≤ 1 mVrms	≤ 1 mVrms	≤ 1 mVrms
Ripple (20-20MHz) - Current	≤ 3 mArms	≤ 3 mArms	≤ 5 mArms	≤ 3 mArms	≤ 3 mArms	≤ 3 mArms
Temp. Coefficient - Voltage	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm
Temp. Coefficient - Current	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm
Read Back Resolution - Voltage	10 mV	10 mV	10 mV	10 mV	10 mV	10 mV
Read Back Resolution - Current	1 mA	1 mA	1 mA	1 mA	1 mA	1 mA
Read Back Temp. Coefficient - Voltage	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm
Read Back Temp. Coefficient - Current	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm	≤ 150 ppm
Reaction Time - Voltage Rise	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)
Reaction Time - Voltage Drop	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)	≤ 100mS (10% Rated load)

Interface

Optional Interfaces (for programmable models only): RS232, USB

Accessories

User manual * 1
Power cord * 1

Weight and Dimensions

KA3003, KA3005: 110mm(W) * 156mm(H) * 260mm(D)
KA3010, KA6005: 110mm(W) * 156mm(H) * 300mm(D)
Weight: KA3003 (3.6Kg), KA3005 (4.8Kg), KA6005, KA3010 (7.5Kg)

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