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LINEAR DC POWER SUPPLY

USER MANUAL

REGULATED LINEAR DC POWER SUPPLY

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Содержание GPS-1850D

Страница 1: ...LINEAR DC POWER SUPPLY USER MANUAL REGULATED LINEAR DC POWER SUPPLY ...

Страница 2: ...meters As linear power supplies they have excellent ripple and load regulation and are suitable for general electronic design work These power supplies can be used as constant voltage source or constant current source All of the models come with over voltage so you can also use them for electroplating anodizing battery charging and DC motor testing etc 2 Specifications 2 1 General AC Input 110V 22...

Страница 3: ...250V 270 128 145 HY3005D 30V 5A 5A 250V 270 128 145 HY3006D 30V 6A 5A 250V 270 128 145 HY6003D 60V 3A 5A 250V 270 128 145 HY3003DX 30V 3A 5A 250V 270 128 145 HY3005DX 30V 5A 5A 250V 270 128 145 HY5003D 50V 3A 5A 250V 270 128 145 HY5005D 50V 5A 5A 250V 270 128 145 GPS 3050D and HY3005D are identical while HY3003D and GPS 3030D are identical 2 2 Front Panel Descriptions 1 Digital ammeter displays th...

Страница 4: ...mit 7 Voltage fine for fine adjustment of the voltage limit 8 Voltage coarse for coarse adjustment of the voltage limit 9 Output button When this button is pushed to In position the power supply output is enabled and the output is connected to the terminals marked as OUT conversely the power supply output is stopped when this button is in the Out position marked as STOP Note the marking is slightl...

Страница 5: ...13 Output terminal Negative polarity black 14 GND terminal Ground terminal green The GND terminal is connected to case and AC ground 15 Output terminal Positive polarity red Warning For electrochemical applications e g plating and anodizing remove the short connector between and ground terminals 2 2 Back panel 16 Cooling fan the fan turns on as long as the power supply is on 17 AC voltage selector...

Страница 6: ...e is not under warranty 18 AC Input The fuse is located here To replace the fuse remove the AC power cord and use a flat head screwdriver to pop out the fuse holder 2 3 Technical Parameters 1 CV mode Line regulation 0 01 3mV Load regulation 0 01 3mV Max current 3A Load regulation 0 01 5mV Max current 3A Ripple noise 0 5mVrms 5Hz 1MHz Max current 3A 1 0mVrms 5Hz 1MHz Max current 3A Recovery time 10...

Страница 7: ...e g for 120V AC the switch itself should show 110V on the voltage selector switch as shown in picture below The AC voltage should be within 10 of that e g if the specified input voltage is 110V the power supply will work with AC voltage of 110V 10 Warning Changing the AC voltage selector setting must be done with the power supply unplugged Warning To avoid electrical shock the power cord ground co...

Страница 8: ...e power supply should have at least 10cm space from the walls 3 2 Constant Voltage Constant Current Characteristics The power supply is a regulated constant current constant voltage CC CV power supply which is characterized by automatic crossover from constant current CC to constant voltage CV and vise versa At any moment the power supply automatically determines whether to operate in CV or CC mod...

Страница 9: ...er point the indicator changes from CV to CC and the current limit becomes the lower limit and the output current remains constant and the output voltage drops in proportion to the further decrease of the load resistance Similarly crossover from constant current CC to constant voltage CV mode automatically occurs when the resistance of the load is increased A good example of this behavior is charg...

Страница 10: ...ion d With no load connected push the output button in to enable output e Adjust current knobs knobs 5 or 6 to slightly above minimum position with CV indicator light red If it s necessary to limit the current while in the CV mode follow section 3 4 to set the current limit f Set voltage knobs 7 and 8 to the desired voltage This voltage should be the operating voltage in CV mode the maximum voltag...

Страница 11: ...e finished stop the output and then turn off the power supply k For applications with the same settings skip steps d i and simply connect the load before enabling output 3 Battery Charging Operation Warning At no time should a battery be connected to the power supply when the power supply is turned off or with the output voltage of the power supply set to lower than the battery voltage Warning Bef...

Страница 12: ... the inductive load to generate a reverse EMF much larger than the voltage from the power supply and cause damage to the power supply Turning on or off the power supply with an inductive load connected can cause power supply to fail beyond repair Damages like this are not under warranty h Adjust all 4 knobs both current and voltage to minimum position i Push the output button in to enable output f...

Страница 13: ...h a test lead with sufficient thickness 3 Push the output button in to enable output 4 Make sure CC light is red If needed adjust the COARSE voltage knob knob 8 up 5 Adjust the current control knobs 5 6 to reach the desired current level repeat 4 if needed 6 The current limit has now been set Do not change the current knobs 5 6 if you want to keep the same current limit or mark the positions of th...

Страница 14: ... with a fuse of correct rating and type Warning For continued fire protection replace fuse only with fuse of the specified type and rating All replacement fuses must be slow blowing type 5 Warranties and Attachment User manual 1 Power cord 1 Warranty this product is covered by standard one year manufacturer s warranty which includes parts and labor for one year from the date of purchase Damages ca...

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