GW Instek GPR-30H10D Single Output Linear DC Power Supply with LED Display, 1 Output Amps, 300 Output Volts, 300 Output Watts
This Instek GPR-H series single-output linear DC power supply unit provides a constant source of DC voltage and current for powering and testing electronic devices. The power supply unit (PSU) has one output that provides adjustable DC voltage up to the rating voltage and current up to the rating current. Potentiometer knobs on the unit's front panel allow for fine and coarse adjustment of the voltage and current output. A digital LED screen shows voltage and current readings and is readable in low light. The PSU features continuous or dynamic internal load selection for applications such as pulsed current. Two units can be connected in series to provide more voltage. A power cord with a three-prong plug is included for connecting the PSU to a grounded outlet, and a test lead is included for testing applications. A built-in cooling fan helps prevent overheating, and overload protection and reverse polarity protection help prevent damage to the PSU and the device under test. This Instek GPR-H series power supply is offered with a choice of rating voltage and current.
| Number of outputs | 1 |
| Load regulation, + or – (percent of output + offset) | Less than or equal to 0.01% of voltage reading + 5mV (millivolts) when rating current is less than 10 amp; less than or equal to 0.02% of voltage reading + 5mV when rating current is greater than or equal to 10 amp; less than or equal to 0.2% of current reading + 5mA (milliamp) |
| Line regulation, + or – (percent of output + offset) | Less than or equal to 0.01% of voltage reading + 3mV; less than or equal to 0.2% of current reading + 3mA |
| Meter accuracy | + or – (0.5% of reading + 2 digits) |
| Recovery time | Less than or equal to 100 μs (microseconds) following a 50% load change with a minimum load of 0.5 amp |
| Ripple and noise | Less than or equal to 1mV RMS (root mean square) at 5Hz to 1 MHz |
| Ripple current | Less than or equal to 5mA RMS at rating current of less than or equal to 20 amp; less than or equal to 10mA RMS at rating current of less than or equal to 30 amp; less than or equal to 20mA RMS at rating current of less than or equal to 50 amp |
| Power requirements | 100V, 120V, 220V, 240VAC, + or – 10%, at 50 to 60Hz |
| Standards met | European Conformity (CE) marking |
| Weight | 18.5kg |
| Dimensions | 145 x 225 x 420mm (H x W x D) |
H is the vertical distance from lowest to highest point, W is the horizontal distance from left to right, and D is the horizontal distance from front to back.
Power supply units (also known as PSUs, AC power supplies, DC power supplies, and battery eliminators) provide AC or DC voltage to power or test devices such as tools, appliances, and electronic components. The PSU draws energy from a line source such as a wall socket and converts it to a constant, specified amount of voltage or current that is then outputted to a connected device. In general, a power supply unit will be classified as either a linear PSU (also known as a linear regulation or line-frequency PSU) or a switched PSU (also known as a switching-mode power supply, SMPS, or switcher). Typically, a linear PSU has a simpler design and provides a faster transient response time and less electrical interference and noise than a switched PSU. A switched PSU is often smaller, lighter, and more efficient than a linear PSU and generates less heat. The transient response time of a PSU indicates how quickly the PSU can resume the desired constant output after a sudden change in input. Ripple voltage or current indicates how much unfiltered noise and AC voltage or current is present at the output of a filtered power supply operated at full load. The temperature coefficient is the percent average change in output voltage per degree centigrade of change in ambient temperature. Fuses, current limiters, and other forms of overload protection can be built into the PSU to help protect against voltage spikes or short-circuiting.
GW Instek manufactures test and measurement equipment such as oscilloscopes, spectrum analyzers, signal testers, and video surveillance systems. The company, founded in 1975 and headquartered in Taipei, Taiwan, meets International Organization for Standardization (ISO) standards 9002 and 14001.
Latest Price Updates
