Section 3. Local Operation

Standard Operation

Output

 

 

 

 

 

Voltage

RL

VSET

 

 

 

Constant Voltage

 

 

 

 

 

 

 

 

Mode Region

 

ISET

 

 

 

 

Crossover Point

RL

VSET

 

 

ISET

VSET

 

 

 

 

 

 

 

 

 

 

 

Constant Current

RL

VSET

 

 

Mode Region

 

ISET

0

 

 

Output

 

 

0

ISET

Current

 

 

Figure 3.1

Operating Modes

 

 

 

Where

RL Load Resistance

VSET Output Voltage Setting

ISET Output Current Limit Setting

 

Note The control circuits have been designed to allow you to set output voltage and

 

current up to 1.5% over the model-rated maximum values. The power supply will

 

operate within these extended ranges, but we cannot guarantee full performance to

 

specification.

Constant

 

The power supply will operate in constant voltage mode whenever the load current

Voltage Mode

IL is less the current limit setting ISET, or: IL < ISET (Note: IL = VSET / RL). In

Operation

constant voltage mode, the power supply maintains the output voltage at the selected

 

value (VSET) while the load current IL varies with the load requirements.

 

To use the power supply in Constant Voltage mode, either set the current limit to

 

maximum by turning the current control to its extreme clockwise position, or take

 

the precaution of setting a desired maximum current, then set the voltage control to

 

the desired voltage.

Constant

The power supply will operate in Constant Current mode whenever the load

Current Mode

resistance is low enough that the load current IL is greater than the current limit

Operation

setting ISET, or: IL > ISET. In constant current mode, the power supply maintains the

 

output current at the selected value (ISET) while the load voltage varies with the load

 

requirements.

Setting the

Set the Current Limit by following the steps below:

Current Limit

1. Connect a shorting lead across the output terminals.

 

2. Turn the voltage control a half-turn clockwise.

 

3. Set the desired maximum current limit by turning the current control slowly

 

clockwise to the desired level.

36

Operating Manual for XPD Series Power Supply

Page 38
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Xantrex Technology XPD 33-16, XPD 60-9, XPD 7.5-67, XPD 120-4.5, XPD 18-30 manual Constant, Setting, Current Limit

XPD 18-30, XPD 33-16, XPD 120-4.5, XPD 7.5-67, XPD 60-9 specifications

Xantrex Technology, a leader in advanced power electronics, has developed a variety of high-performance power inverters and converters designed for various applications. Among their notable products are the XPD 33-16, XPD 120-4.5, XPD 60-9, XPD 18-30, and XPD 7.5-67. These models showcase distinctive features, technologies, and characteristics tailored to meet diverse energy demands.

The XPD 33-16 model is recognized for its compact design and efficient power output. Designed for small to medium-sized applications, it integrates advanced digital signal processing technology, offering seamless operation and improved reliability. With an output power of 33 amps and a voltage of 16 volts, the XPD 33-16 is particularly ideal for use in recreational vehicles, marine applications, and renewable energy systems.

Next, the XPD 120-4.5 stands out with its high output capacity and versatility. Capable of delivering 120 amps at 4.5 volts, this inverter is optimized for larger power loads, making it suitable for commercial and industrial settings. Its robust design includes features such as over-temperature protection and high-efficiency components, ensuring optimal performance under demanding conditions.

The XPD 60-9 is another impressive model known for its balance of performance and energy efficiency. With an output of 60 amps and a voltage of 9 volts, it is ideal for applications requiring medium power levels. The unit is equipped with advanced monitoring capabilities, allowing users to track performance metrics in real-time, facilitating proactive management of power consumption.

For applications requiring a lower voltage solution, the XPD 18-30 offers a suitable option. With an output of 18 amps and a voltage of 30 volts, this model is engineered for use in niche markets, including specialized lighting systems and small-scale energy storage solutions. Its compact size and lightweight design enhance portability, making it easier to position and install.

Lastly, the XPD 7.5-67 model is designed for ultra-efficient energy management. Producing 7.5 amps at 67 volts, this inverter is particularly well-suited for integration into solar energy systems where space and weight constraints are critical. It features multiple safety protocols, including short-circuit and overload protection, ensuring secure operation even in challenging environments.

In summary, Xantrex Technology’s range of XPD power products, including the XPD 33-16, XPD 120-4.5, XPD 60-9, XPD 18-30, and XPD 7.5-67, highlights the company’s commitment to innovation and performance in power electronics. Each model is equipped with unique features designed to cater to a variety of applications, underscoring Xantrex's role in advancing energy technology.