GPP-3650 (GPIB) Triple-Channel Programmable DC Power Supply

Key Features

Triple independent output channels
Maximum total power output of 385W
CH1 & CH2: 0–36V / 0–5A adjustable outputs
CH3: Fixed output at 1.8V, 2.5V, 3.3V, or 5V; up to 5A
GPIB interface for remote control and automation
Ideal for R&D, testing, and production environments

The GPP-3650 (GPIB) Triple-Channel Programmable DC Power Supply is a high-performance, precision instrument designed for versatile testing and development applications in laboratories and production environments. Featuring three independent output channels, it delivers a combined maximum power output of 385W. Channels 1 and 2 offer adjustable voltage ranges from 0 to 36V and current ranges up to 5A, ideal for powering a wide variety of devices and circuits with precision and stability. Channel 3 provides fixed selectable voltages of 1.8V, 2.5V, 3.3V, or 5V at a constant 5A, making it perfect for powering digital logic and microcontroller systems. With GPIB interface support, it enables seamless integration into automated test systems, and its programmable functionality ensures accurate, repeatable control for complex test setups. Built with safety, flexibility, and reliability in mind, the GPP-3650 is an essential tool for engineers, technicians, and researchers requiring multi-channel power solutions.

Specifications

		GPP-3060			GPP-6030			GPP-3650
Output Mode
Number of Channel		CH1	CH2	CH3	CH1	CH2	CH3	CH1	CH2
Voltage		0 ~ 30.000V	0 ~ 30.000V	1.8V/2.5V/3.3V/5.0V, ±5%	0 ~ 60.000V	0 ~ 60.000V	1.8V/2.5V/3.3V/5.0V, ±5%	0 ~ 36.000V	0 ~ 36.000V
Current		0 ~ 6.0000A	0 ~ 6.0000A	5A (USB Port 3A)	0 ~ 3.0000A	0 ~ 3.0000A	5A (USB Port 3A)	0 ~ 5.0000A	0 ~ 5.0000A
Tracking Series Voltage / Current		0 ~ 60.000V / 0 ~ 6.0000A		–	0 ~ 120.000V / 0 ~ 3.0000A		–	0 ~ 72.000V / 0 ~ 5.0000A
Tracking Parallel Voltage / Current		0 ~ 30.000V / 0 ~ 12.0000A		–	0 ~ 60.000V / 0 ~ 6.0000A		–	0 ~ 36.000V / 0 ~ 10.0000A
Warning		The CH3 output current from the 2 terminals should Not exceed 5A.
Constant Voltage Operation
Line Regulation		≤0.01% + 3mV		≤3mV	≤0.01% + 3mV		≤3mV	≤0.01% + 3mV
Load regulation		≤0.01% + 5mV (rating current ≤10A)		≤5mV	≤0.01% + 5mV (rating current ≤10A)		≤5mV	≤0.01% + 5mV (rating current ≤10A)
Ripple & noise (5Hz-1MHz)		≤1mVrms		≤2mVrms	≤1mVrms		≤2mVrms	≤1mVrms
Transient recovery time		≤100µs
		(50% load change，minimum load 0.5A)
Temperature coefficient		≤300ppm/°C
Constant Current Operation
Line Regulation		≤0.01% + 3mA
Load regulation		≤0.01% + 3mA
Ripple & noise		≤2mArms
Resolution
Programming	Voltage	1mV		–	2mV		–	2mV
	Current	0.2mA			0.1mA			0.1mA
Reedback	Voltage	0.1mV			0.1mV			0.1mV
	Current	0.1mA			0.1mA			0.1mA
Tracking Operation(CH1/CH2)
Tracking error		≤0.1% +10mV of Master		–	≤0.2% +20mV of Master		–	≤0.1% +10mV of Master
		(No Load, with load add load regulation ≤ 200mV)			(No Load, with load add load regulation ≤ 200mV)			(No Load, with load add load regulation ≤ 200mV)
Parallel regulation	Line	≤0.01% + 3mV			≤0.01% + 3mV			≤0.01% + 3mV
	Load	≤0.01% + 5mV (rating current ≤10A)			≤0.01% + 5mV (rating current ≤10A)			≤0.01% + 5mV (rating current ≤10A)
		≤0.02% + 5mV (rating current > 10A)			≤0.02% + 5mV (rating current > 10A)			≤0.02% + 5mV (rating current > 10A)
Series regulation	Line	≤0.01% + 5mV			≤0.01% + 5mV			≤0.01% + 5mV
	Load	≤200mV			≤200mV			≤200mV
Ripple & noise		≤2mVrms(5Hz-1MHz)			≤2mVrms(5Hz-1MHz)			≤2mVrms(5Hz-1MHz)
Note		Tracking is not supported in LOAD mode.
Meter
Full Scale	Voltage	32.0000V		1.8V/2.5V/3.3V/5.0V	62.0000V		1.8V/2.5V/3.3V/5.0V	36.0000V
	Current	6.2000A		–	3.2000A		–	5.2000A
Programming Resolution	Voltage	5 digits			5 digits			5 digits
	Current	5 digits			5 digits			5 digits
Reedback Resolution	Voltage	6 digits			6 digits			6 digits
	Current	5 digits			5 digits			5 digits
Setting accuracy	Voltage	± (0.03% of reading + 10mV)			± (0.03% of reading + 10mV)			± (0.03% of reading + 10mV)
	Current	± (0.3% of reading + 10mA)			± (0.3% of reading + 10mA)			± (0.3% of reading + 10mA)
Readback accuracy	Voltage	± (0.03% of reading + 10mV)			± (0.03% of reading + 10mV)			± (0.03% of reading + 10mV)
	Current	± (0.3% of reading + 10mA)			± (0.3% of reading + 10mA)			± (0.3% of reading + 10mA)
DC Load Mode
Display	Voltage	1 ~ 32.00V			1 ~ 62.00V			1 ~ 36.5.00V
	Current	0 ~ 6.200A			0 ~ 3.200A			0 ~ 5.200A
	Power	0 ~ 50.00W			0 ~ 50.00W			0 ~ 50.00W
CV Mode	CH1/CH2	1.500V – 32.00V			1.500V – 62.00V			1.500V – 36.50V
	Setting Accuracy	≤±(0.1% + 30mV)			≤±(0.1% + 30mV)			≤±(0.1% + 30mV)
	Reedback Accuracy	≤±(0.1% + 30mV)			≤±(0.1% + 30mV)			≤±(0.1% + 30mV)
	Resoltion	10mV			10mV			10mV

		GPP-3060		GPP-6030		GPP-3650
CC Mode	CH1/CH2	0 ~ 6.200A	–	0 ~ 3.200A	–	0 ~ 5.200A	–
	Setting Accuracy	≤±(0.3% + 10mA)		≤±(0.3% + 10mA)		≤±(0.3% + 10mA)
	Reedback Accuracy	≤±(0.3% + 10mA)		≤±(0.3% + 10mA)		≤±(0.3% + 10mA)
	Resoltion	1mA		1mA		1mA
CR Mode	CH1/CH2	1Ω- 1kΩ		1Ω- 1kΩ		1Ω- 1kΩ
	Setting Accuracy	≤±(3% + 1Ω)		≤±(3% + 1Ω)		≤±(3% + 1Ω)
		(voltage≥0.1V, and current≥0.1A)		(voltage≥0.1V, and current≥0.1A)		(voltage≥0.1V, and current≥0.1A)
	Reedback Accuracy	≤±(3% + 1Ω)		≤±(3% + 1Ω)		≤±(3% + 1Ω)
		(voltage≥0.1V, and current≥0.1A)		(voltage≥0.1V, and current≥0.1A)		(voltage≥0.1V, and current≥0.1A)
	Resoltion	1Ω		1Ω		1Ω
Protection
OVP	Power Mode	OFF,ON(0.5V-35.0V)	Fixed 5.5V	OFF,ON(0.5V-65.0V)	Fixed 5.5V	OFF,ON(0.5V-38.0V)	Fixed 5.5V
	Load Mode	OFF,ON(1.5V-35.0V)	–	OFF,ON(1.5V-65.0V)	–	OFF,ON(1.5V-38.0V)	–
	Setting Accuracy	±100mV
	Resoltion	100mV
OCP	Power Mode	OFF,ON(0.05A-6.50A)	3.1A(USB port)	OFF,ON(0.05A-3.50A)	3.1A(USB port)	OFF,ON(0.05A-5.50A)	3.1A(USB port)
	Load Mode	OFF,ON(0.05A-6.50A)	–	OFF,ON(0.05A-3.50A)	–	OFF,ON(0.05A-5.50A)	–
	Setting Accuracy	±20mA
	Resoltion	10mA
Insulation resistance	Between chassis and terminal	20MΩ or above (DC 500V)
	Between chassis and DC power cord	30MΩ or above (DC 500V)
General
Operation Environment		Indoor use, Altitude: ≤2000m
		Ambient temperature: 0 ~ 40°C
		Relative humidity: ≤80%
		Installation category: II / Pollution degree: 2
Storage Environment		TEMPERATURE: -10°C ~ 70 °C
		HUMIDITY: ≤70%
Power Input		AC 100V/120V/220V/230V±10%, 50/60Hz
Power Consumption		900VA, 680W
Accessories		CD User manual x1, Quick Start manual x1, Power Code x1
		Test lead: GTL-104A x 3
		(Europe) Test lead: GTL-204A x 3, GTL-201A x1
Dimensions		213 (W) x 145 (H) x 362 (D) mm
Weight		Approx. 10kg