PSW-Multi series Dual-channel PSW-720L45 programmable switching DC power supply

Dual independent output channels
Adjustable DC voltage (0-45V)
Maximum power rating of 720W
Programmable voltage and current control
Intuitive touchscreen display
Over-voltage, over-current, and over-temperature protection
High efficiency and compact design
Ideal for lab and R&D applications

The PSW-Multi series Dual-channel PSW-720L45 programmable switching DC power supply is a high-performance, versatile power solution designed for a variety of electronic testing and research applications. It features dual independent output channels, each delivering a stable, adjustable DC voltage with a maximum power rating of 720W and a voltage range of 0-45V. The power supply is equipped with advanced programmable capabilities, allowing precise control over voltage, current, and output sequencing, making it ideal for applications in laboratory environments, production testing, and R&D. With a user-friendly interface, intuitive touchscreen display, and comprehensive protection features (such as over-voltage, over-current, and over-temperature protection), the PSW-720L45 ensures reliable and safe operation during testing and experimentation. Its compact design and high efficiency make it a valuable tool for engineers and technicians requiring consistent and accurate power delivery across a wide range of devices and circuits.

PSW-Multi Series Module Specifications

Module Type			1	2	4	5	6	8
H/L Voltage Classicfication		—	L	L	L	L	H	H
Rated output voltage		V	30	40	80	160	250	800
Rated output current		A	36	27	13.5	7.2	4.5	1.44
Rated output power		W	360	360	360	360	360	360
Power ratio		—	3	3	3	3.2	3.125	3.2
Constant Voltage Mode			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Line regulation (*1)		mV	18	23	43	83	128	403
Load regulation (*2)		mV	20	25	45	85	130	405
Ripple and noise (*3)	p-p (*4)	mV	60	60	60	60	80	150
	r.m.s. (*5)	mV	7	7	7	12	15	30
Temperature coefficient		ppm/℃	100ppm/°C of rated output voltage, after a 30 minute warm-up
Remote snese compensation voltage (single wire)		V	0.6	0.6	0.6	0.6	1	1
Rise time (*6)	Rated load	ms	50	50	50	100	100	150
	No load	ms	50	50	50	100	100	150
Fall time (*7)	Rated load	ms	50	50	50	100	150	300
	No load	ms	500	500	500	1000	1200	2000
Transient response time (*8)		ms	1	1	1	2	2	2
Constant Current Mode			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Line regulation (*1)		mA	41	32	18.5	12.2	9.5	6.44
Load regulation (*9)		mA	41	32	18.5	12.2	9.5	6.44
Ripple and noise	r.m.s.	mA	72	54	27	15	10	5
Temperature coefficient		ppm/℃	200ppm/°C of rated output current, after a 30 minute warm-up
Protection Function			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Over voltage protection (OVP)	Setting range	V	3-33	4-44	8-88	16-176	20-275	20-880
	Setting accuracy		± (2% of rated output voltage)
Over current protection (OCP)	Setting range	A	3.6-39.6	2.7-29.7	1.35-14.85	0.72-7.92	0.45-4.95	0.144-1.584
	Setting accuracy		± (2% of rated output current)
Over temperature protection (OTP)	Operation		Turn the output off
Low AC input protection (AC-FAIL)	Operation		Turn the output off
Power limit (POWER LIMIT)	Operation		Over power limit.
Power limit (POWER LIMIT)	Value (fixed)		Approx. 105% of rated output power
Analog Programming and Monitoring			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
External voltage control output voltage	at 23 °C ± 5 °C		Accuracy and linearity: ±0.5% of rated output voltage.
External voltage control output current	at 23 °C ± 5 °C		Accuracy and linearity: ±1% of rated output current.
External resistor control output voltage	at 23 °C ± 5 °C		Accuracy and linearity: ±1.5% of rated output voltage.
External resistor control output current	at 23 °C ± 5 °C		Accuracy and linearity: ±1.5% of rated output current.
Output voltage monitor	at 23 °C ± 5 °C		Accuracy: ±1%				Accuracy: ±2%
Output current monitor	at 23 °C ± 5 °C		Accuracy: ±1%				Accuracy: ±2%
Shutdown control			Turns the output off with a LOW (0V to 0.5V) or short-circuit
Output on/off control			Possible logic selections: Turn the output on using a LOW (0V to 0.5V) or short-circuit, turn the output off using a HIGH (4.5V to 5V) or open-circuit. Turn the output on using a HIGH (4.5V to 5V) or open-circuit, turn the output off using a LOW (0V to 0.5V) or short-circuit.
CV/CC/ALM/PWR ON/OUT ON indicator			Photocoupler open collector output; Maximum voltage 30V, maximum sink current 8mA.
Front Panel			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Display, 4 digits Voltage accuracy	at 23 °C ± 5 °C; ± (0.1% +	mV	20	20	20	100	200	400
Current accuracy	at 23 °C ± 5 °C; ± (0.1% +	mA	40	30	20	5	5	2
Indications			GREEN LED’s: CV, CC, VSR, ISR, DLY, RMT, 20, 40, 60, 80, 100, %W, W, V, A
			RED LED’s: ALM
Buttons			Function, OVP/OCP, Set, Test, Lock/Local, PWR DSPL, Output
Knobs			Voltage, Current
USB port			Type A USB connector
Programming and Measurement (USB, LAN, GPIB)			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Output voltage programming accuracy	at 23 °C ± 5 °C; ± (0.1% +	mV	10	10	10	100	200	400
Output current programming accuracy	at 23 °C ± 5 °C; ± (0.1% +	mA	30	20	10	5	5	2
Output voltage programming resolution		mV	1	1	2	3	5	14
Output current programming resolution		mA	1	1	1	1	1	1
Output voltage measurement accuracy	at 23 °C ± 5 °C; ± (0.1% +	mV	10	10	10	100	200	400
Output current measurement accuracy	at 23 °C ± 5 °C; ± (0.1% +	mA	30	20	10	5	5	2
Output voltage measurement resolution		mV	1	1	2	3	5	14
Output current measurement resolution		mA	1	1	1	1	1	1
Input Characteristics			30-36	40-27	80-13.5	160-7.2	250-4.5	800-1.44
Efficiency	100Vac	%	77	78	78	79	79	80
	200Vac	%	79	80	80	81	81	82
Input Characteristics			Dual Channel			Triple Channel
Norminal input rating			100Vac to 240Vac, 50Hz to 60Hz, single phase
Input voltage range			85Vac ~ 265Vac
Input frequency range			47Hz ~ 63Hz
Maximum input current	100Vac	A	10			15
	200Vac	A	5			7.5
Inrush current			Less than 50A			Less than 75A
Maximum input power		VA	1000			1500
Power factor	100Vac		0.99
	200Vac		0.97
Hold-up time			20ms or greater
Interface Capabilities			Dual Channel			Triple Channel
USB			TypeA: Host, TypeB: Slave, Speed: 1.1/2.0, USB Class: CDC(Communications Device Class)
LAN			MAC Address, DNS IP Address, User Password, Gateway IP Address, Instrument IP Address, Subnet Mask
GPIB			Optional: GUG-001 (GPIB to USB Adapter)
Environmental Conditions			Dual Channel			Triple Channel
Operaing temperature			0°C to 50 °C
Storage temperature			-25°C to 70 °C
Operating humidity			20% to 85% RH; No condensation
Storage humidity			90% RH or less; No condensation
Altitude			Maximum 2000m
General Specifications			Dual Channel			Triple Channel
Weight	main unit only	kg	Approx. 5.4kg			Approx. 7.7kg
Dimensions	(W×H×D)	mm	142 x 124 x 350			214 x 124 x 350
Cooling			Forced air cooling by internal fan
EMC			Complies with the European EMC directive for Class A test and measurement products
Safety			Complies with the European Low Voltage Directive and carries the CE-marking
Withstand voltage	Between input and chassis		No abnormalities at 1500 Vac for 1 minute
	Between input and output		No abnormalities at 3000 Vac for 1 minute
	Between output and chassis		No abnormalities at 500 Vdc for 1 minute for 30V, 40V, 80V, 160V models No abnormalities at 1500 Vdc for 1 minute for 250V, 800V models
Insulation resistance	Between input and chassis		500 Vdc, 100 M Ω or more
	Between input and output		500 Vdc, 100 M Ω or more
	Between output and chassis		500 Vdc, 100 M Ω or more for 30V, 40V, 80V, 160V and 250V models 1000 Vdc, 100 M Ω or more for 800V models

Notes:

*1: At 85 ~ 132Vac or 170 ~ 265Vac, constant load.

*2: From No-load to Full-load, constant input voltage. Measured at the sensing point in Remote Sense.

*3: Measure with JEITA RC-9131B (1:1) probe

*4: Measurement frequency bandwidth is 10Hz to 20MHz.

*5: Measurement frequency bandwidth is 5Hz to 1MHz.

*6: From 10% to 90% of rated output voltage, with rated resistive load.

*7: From 90% to 10% of rated output voltage, with rated resistive load.

*8: Time for output voltage to recover within 0.1% + 10mV of its rated output for a load change from 50 to 100% of its rated output current.

*9: For load voltage change, equal to the unit voltage rating, constant input voltage.

ACCESSORIES

Power Cord x1(Region dependent)
GTL-123 Test Lead x 1 (30V/40V/80V/160V One low voltage module for each channel)
GTL-240 USB Cable”L” Type x1
PSW-004 Basic Accessories Kit x1(30V/40V/80V/160V low voltage module)
PSW-008 Basic Accessories Kit x1(250V/800V high voltage module)
PSW-009 Output terminal cover(30V/40V/80V/160V low voltage module)
PSW-011 Output terminal cover(250V/800V high voltage module)
PSW-012 High voltage output terminal(250V/800V high voltage module)

OPTIONAL ACCESSORIES

PSW-001 Accessory Kit
PSW-002 Simple IDC Tool
PSW-003 Contact Removal Tool
PSW-010 Large filter (for PSW 720W/1080W models)
GUG-001 GPIB to USB Adaptor
GRA-410-J Rack Mount Kit(JIS)
GRA-410-E Rack Mount Kit(KIA)
GET-001 Extended Terminal with max. 30A(30V/40V/80V/160V low voltage)
GET-002 Extended Terminal with max. 10A(250V/800V high voltage module)
GET-005 Extended European Terminal with max. 20A(30V/40V/80V/160V low voltage module)
GTL-130 Test Lead: 2x red, 2x black(250V/800V high voltage module)
GTL-248 GPIB Cable, 2000mm
GUR-001A USB TO RS-232 Cable (M3), 3000mm
GUR-001B USB TO RS-232 Cable (#4-40 UNC), 3000mm