Application Notes
High Current Power Supplies
As the name implies, high current power supplies can deliver large amounts of current to a load. High current power supplies can be of two basic types: high current linear power supplies, and high current switch mode power supplies.
High current linear power supplies consist of an input transformer, full wave rectifier bridge, and dissipative regulator circuit. They have very low ripple, very good regulation, and no switching frequency that can cause unwanted EMI. High current linear power supplies are larger and heavier than switching power supplies and are less efficient.
High current switch mode power supplies, sometimes referred to as SMPS power supplies, switchers, or switched mode power supplies, regulate the output voltage using a complex high frequency switching technique that employs pulse width modulation and feedback. Acopian switching regulated power supplies also employ extensive EMI filtering and shielding to attenuate both common and differential mode noise conducted to the line and load. Galvanic isolation is standard in our switchers, affording our users input to output and output to ground isolation for maximum versatility. Acopian high current switching regulated power supplies are highly efficient, small and lightweight, and are available in both AC-DC single and wide-adjust output and DC-DC configurations.
1U High Current Switching Regulated Power Supplies- 450-720 Watts
- 1U rack or bench top
- Up to 135 Volts
- Short circuit and overload protected
- Overvoltage protection
- Pluggable input/output terminal block
- Universal input (90-265VAC, 49-420HZ, 110-350VDC)
- Power factor correction (PFC)
- Can be paralleled (with “P” option)
- N+1 redundant capable (“N” option)
- Constant current and constant voltage modes
- Locally adjustable with internal potentiometers
- Programmable 0-10VDC (0-5VDC with C5 option)
- RS232, USB, Ethernet programming and monitoring
- Remote enable or inhibit
- Internal EMI filter and RFI shielding
- Soft start
Low Profile High Current Switching Regulated Power Supplies
- 450-720 Watts
- Up to 135 Volts
- Short circuit and overload protected
- Overvoltage protection
- Pluggable input/output terminal block
- Universal input (90-265VAC, 49-420HZ, 110-350VDC)
- Power factor correction (PFC)
- Can be paralleled (with “P” option)
- N+1 redundant capable (“N” option)
- Constant current and constant voltage modes
- Locally adjustable with internal potentiometers
- Programmable 0-10VDC (0-5VDC with C5 option)
- RS232, USB, Ethernet programming and monitoring (when used in a system rack, benchtop, or wall mount)
- Internal EMI filter and RFI shielding
- Soft start
Gold Box High Current Linear Regulated Rack Mounted Power Supplies
- 30-784 Watts
- Excellent regulation
- Low noise and ripple
Linear Regulated High Current Redundant Power Packages:
- Rack or wall mount
- 15-425Watts
- Hot-swappable power supplies
Switching Regulated High Current Redundant Power Packages:
- Rack or wall mount
- 312-1200 Watts
- 12-48VDC
- Hot-swappable power supplies
Low Profile High Current DC-DC Converters
- 450-720 Watts
- Up to 135 Volts
- Short circuit and overload protected
- Overvoltage protection
- Pluggable input/output terminal block
- DC input: 110 - 350 VDC
- Power factor correction (PFC)
- Can be paralleled (with “P” option)
- N+1 redundant capable (“N” option)
- Constant current and constant voltage modes
- Locally adjustable with internal potentiometers
- Programmable 0-10VDC (0-5VDC with C5 option)
- RS232, USB, Ethernet programming and monitoring (when used in a system rack, benchtop, or wall mount) Internal EMI filter and RFI shielding
Parallelable High Current “Semisystem” Power Supplies
- 275-750 Watts
- Parallelable for redundant operation
- Voltmeter, alarm output and overvoltage protection standard
- Connectorized for quick installation and removal