DC POWER SUPPLY Users Manual V A

DC POWER SUPPLY

VOLTAGE C.V.

INE V

FINE

COARSE

CURRENT

FIN

CURRENT

ON OFF

VOLTAGE

C.C.

POWER _

+

OFF ON

COARSE

Table of Contents CHAPTER 1.

2.

3.

4.

Introduction

………………………………………………………………

1-1

Unpacking and Inspection

………………………………………………………………

1-2

Safety Precautions

………………………………………………………………

1-2

Safety Information

………………………………………………………………

1-3

Safety Symbols

………………………………………………………………

1-3

Instrument Front Panel

………………………………………………………………

1-4

Instrument Back Panel

………………………………………………………………

1-6

Operation

………………………………………………………………

2-1

Line Power Supply Setting

………………………………………………………………

2-1

Operation Procedure

………………………………………………………………

2-3

Specifications

………………………………………………………………

3-1

General Specifications

………………………………………………………………

3-1

Technical Parameters

………………………………………………………………

3-2

Maintenance

………………………………………………………………

4-1

Replacing the Fuse

………………………………………………………………

4-1

Chapter 1 Introduction This manual contains information and warnings, which must be followed to ensure safe operation and retain the DC power supply in safe condition.

WARNING READ “SAFETY INFORMATION” MAINTENANCE THE INSTRUMENT.

BEFORE

USING,

INSTALLING

OR

The DC power supply series are a bench top single output variable DC power supply. Stable regulated DC power supplies allowing continuous adjustment of both the output voltage and output current levels. They have been designed according to IEC1010–1 concerning safety requirements and comply with. There are three display types for the power supply series monitoring output voltage and current. They are LCD, LED and two pointer meters. One of them is equipped to the DC power supply. There are different numbers of output voltage and output current ranges for the DC power supply series, too. These difference models of the DC power supply are available for choice of user. The output voltage and current range and equipped display type of the DC power supply series as follows: OUTPUT VOLTAGE (regulated) 0~15V 1-1

OUTPUT CURRENT (regulated) 0~2A 0~3A

LCD · ·

DISPLAY TYPE LED POINTER METER · · · ·

Introduction DC Power Supply Series OUTPUT VOLTAGE (regulated) 0~18V

0~30V

0~50V

OUTPUT CURRENT (regulated) 0~2A 0~3A 0~2A 0~3A 0~5A 0~10A 0~20A 0~2A

LCD · · · · ·

0~3A

1

DISPLAY TYPE LED POINTER METER

· · · · · ·

· · ·

·

These difference models of the DC power supply are available for choice of user.

Unpacking and Inspection The packing should include the following items: 1．DC power supply 2．Power line cord 3．Instruction manual 4．Spare fuse Please check to see that all of the above items are included.

Safety Precautions 1. Before applying power to your DC power supply, make sure that power select switch is correctly setting for you applicable AC 1-2

DC Power Supply Users Manual

2. 3. 4. 5. 6. 7. 8.

power supply. Connect the instrument to an AC power source using the power line core provided. Do not connect a voltage that is greater than the current output voltage to the terminals of the instrument. Never ground yourself when taking electrical measurements. Keep your body isolated from ground by using dry clothing; rubber shoes, rubber mat, or any approved insulating material. Never touch exposed wiring, connections or any live circuit when attempting to take measurements. Avoid shorting circuit the output of DC power supply. Set the voltage and current adjustment knobs as you desire. The unit should be stored in a dry and well ventilated place and the power cord removed if storing for long periods.

Safety Information The DC power supply series has been designed according to IEC1010 – 1 concerning safety requirements for electrical measuring instruments with an overvoltage category (300V CAT II) and pollution 2.

Safety Symbols Important safety information, refer to the operating manual. DC – Direct current. Earth ground.

1-3

Introduction

1

Safety Precautions

Caution! Hot surface. Avoid contact. Conforms to European Union directives.

Instrument Front panel Figure 1-1 DC POWER SUPPLY

2

1 2

13

5 CURRENT

1

3 VOLTAGE

3 4

13 CURRENT

5 6 7

VOLTAGE

C.C.

FINE

C.V.

COARSE

FINE

COARSE

ON OFF

8

POWER _

10

11

+

OFF ON

12

9

15/18V

9

10

11

12

30/50V 2/3/5A 1-4

DC Power Supply Users Manual

1 2 3 4 5 6 7

FINE

ON OFF

COARSE

FINE

COARSE

CURRENT

VOLTAGE

C.C.

C.V.

300V

CATⅡ

8

POWER

9

10

11

12

30V 10/20A 1.

2.

3. 1-5

OUTPUT VOLTAGE INDICATOR This indicator shows output voltage as measured at the output terminals. There is LCD or LED or pointer meter display type. They are available for choice of user. OUTPUT CURRENT INDICATOR This indicator shows output current as measured at the output terminals. There is LCD or LED or pointer meter display type. They are available for choice of user. COARSE(MAIN) VOLTAGE REGULATOR

Introduction Instrument Front Panel

4. 5. 6. 7. 8. 9. 10. 11. 12. 13.

1

Adjust output voltage of the DC power supply. FINE VOLTAGE REGULATOR This is a fine control. Adjust output voltage of the DC power supply. COARSE(MAIN) CURRENT REGULATOR Adjust output current of the DC power supply and delivered. FINE CURRENT REGULATOR This is a fine control. Adjust output current of the DC power supply and delivered. C.C. INDICATOR Constant current mode indicator C.V. INDICATOR Constant voltage mode indicator POWER ON/OFF SWITCH This is main power switch of the instrument. NEGATIVE OUTPUT TERMINAL GROUND OUTPUT TERMINAL POSITIVE OUTPUT TERMINAL POINT METER ZERO (only pointer meter display) Each pointer meter has a mechanical screw adjustment for setting the zero point. Using a small screwdriver, turn off the power and adjust the screw under the meter respectively to read zero. There is only pointer meter model.

Instrument Back Panel (Figure 1-2) 1. 2.

HEAT SINK There is an on the heat sink. It indicates "caution! Hot surface avoid contact". POWER SELECT SWITCH 1-6

DC Power Supply Users Manual

3.

Two kinds of power 220VAC and 110VAC 50Hz/60Hz can be supplied to the instrument. According to user’s needs, setting it FUSES There are two fuses in the AC power input socket. One is in use and the other is for spare part.

The fuse of The DC power supply series as follows: OUTPUT VOLTAGE Regulated 0~15V

0~18V

0~30V

0~50V

4. 1-7

AC POWER INPUT

OUTPUT CURRENT regulated

FUSE TYPE line 220VAC

FUSE TYPE line 110VAC

0~2A

T 1A L 250V

T 2A L 250V

0~3A 0~2A

T 1A L 250V T 1A L 250V

T 2A L 250V T 2A L 250V

0~3A 0~2A 0~3A 0~5A 0~10A 0~20A 0~2A

T 1A L 250V T 1A L 250V T 2A L 250V T 3.15A L 250V T 5A L 250V T 8A L 250V T 2A L 250V

T 2A L 250V T 2A L 250V T 4A L 250V T 6.3A L 250V T 10A L 250V T 15A L 250V T 4A L 250V

0~3A

T 3.15A L 250V

T 6.3A L 250V

Introduction Instrument Back Panel

1

Figure 1-2 1 !

CAUTION

98TO122V ~ 50/60Hz

198TO242V ~ 50/60Hz

1 220

3

3 4

15/18V

2

4

30/50V 2/3/5A

1 !

CAUTION

98 TO 122V ~ 50/60Hz

220

198 TO 242V~ 50/60Hz

2

1 CAUTION! HOT SURFACE. AVOID CONTACT.

3 4 !

3

FUSE:XXXXXXXX

4

30V 10A

30V 20A

1-8

DC Power Supply Users Manual

WARNING To avoid user for injury and the instrument for damage, the voltage value of AC power must be examined with same the power requirements of instrument before connect power cord to live power source.

WARNING To avoid electrical shock, disconnect power cord from live power source and remove the test leads and any input signals before replacing the power fuses. Replace it only with the same type of fuses.

1-9

Chapter 2 Operation Introduction WARNING To avoid electric shock or personal injury, read “Safety Precautions” and “Safety Information” before Operation. Before making any operation always examine the DC power supply and accessories used with it for damage, contamination (excessive dirt, grease, etc.) and defects. Examine the test leads for cracked or frayed insulation and make sure the lead plugs fit snugly into the output jacks. If any abnormal exist do not attempt to make any operation.

Line Power Supply Setting (Figure 2-1) (Only for the instrument with POWER SELECT SWITCH ) Two kinds of AC line, 220VAC 50Hz/60Hz or 110VAC 50Hz/60Hz, can be supplied to the instrument. Set it with a screwdriver to adapt your AC line. Check to be sure that power select switch on back panel is switch to correct line voltage. Check to be sure that fuse is correct rating current.

2-1

DC Power Supply Users Manual

Figure 2-1

!

!

CAUTION

98TO122V ~ 50/60Hz

220

198TO242V ~ 50/60Hz

CAUTION

98TO122V ~ 50/60Hz

198TO242V ~ 50/60Hz

110

CAUTION The applicable AC power supply range is: 220VAC ± 10% (198 to 242V~) 50Hz/60Hz or 110VAC ± 10% (98 to 122V~) 50Hz/60Hz. NOTE: The instrument without POWER SELECT SWITCH is factory pre-set in accordance with your main voltage when your local distributor place the order with the factory.

2-2

Operation Operating Procedure

2

Operating Procedure CONSTANT VOLTAGE MODE 1. Turn the voltage regulator anti-clockwise to minimum position and the current regulator clockwise to maximum position. 2. Press the power ON / OFF switch to ON. 3. Turn the voltage regulator clockwise to that you are desirous of output voltage value. 4. Connect the positive output terminal and negative output terminal with a load or similar component. 5. The voltage regulator controls the output voltage indicator. Indicator shows that output voltage of the output terminals. CONSTANT CURRENT MODE 1. Turn the voltage regulator clockwise to maximum position and the current regulator anti – clockwise to minimum position. 2. Press the power ON/ OFF switch to ON. 3. Connect the positive output terminal and negative output terminal with a load or similar component. 4. Turn the current regulator clockwise to that you are desirous of output current value. 5. The voltage regulator controls the output voltage indicator. The current regulator controls the output current indicator. Indicator show that output voltage and current of the output terminals.

RESTRICTED CURRENT PROTECTION MODE 1. Press the power ON/ OFF switch to ON. 2. Turn the current regulator anti-clockwise to minimum position then clockwise a little. 3. Turn the voltage regulator clockwise to that you are desirous of output voltage level position (approx.1.5V). 4. Link the positive and negative output terminals with a wire. 5. Turn the current regulator clockwise to get the current level at which the restricted current protection will be active as you desire. 2-3

DC Power Supply Users Manual 6.

Remove the wire linked to the positive and negative output terminals. Connect the positive output terminal and negative output terminal with a load or similar component. 7. When the output current achieves the setting value of restricted current protection, and the restricted current protection is active. NOTE: After setting of the restricted current protection, if the current regulator is turned again, the restricted current protection range will be changed. C.C. AND C.V. INDICATOR (Only for the instrument with C.C. and C.V. INDICATOR ) The C.C. indicator is controlled by the constant current mode. Otherwise C.V. indicator is controlled by the constant voltage mode.

CAUTION The DC power supply series has perfect restricted current protection, Even so, when the output terminal is short - circuit, the DC power supply should be turned off and the short - circuit should be removed before continuing operation because the power transistors in the instrument will bear heavy. The AC power must be switched off before servicing and servicing should be referred to a qualified person. CAUTION Using this appliance in an environment with a strong radiated radio - frequency electromagnetic field (approximately 3V/m) may influence its measuring accuracy.

2-4

Chapter 3 Specifications General Specifications Safety: Temperature:

Relative Humidity: Protection:

Designed comply with IEC 1010 -1 specifications. CAT.Ⅱ300V 0℃ to 40℃ for operating, -10℃ to 50℃ for storage Under 75% rated output power for continuous, upward of 75% rate output power for one hour. 20% to 80% RH (0℃ to 40℃). constant current and short - circuit protection

Weight & Size OUTPUT VOLTAGE (regulated) 0~15V 0~18V 0~30V

OUTPUT CURRENT (regulated) 0~2A 0~3A 0~2A

WEIGHT Approx. 3kg Approx. 4kg Approx. 4kg

SIZE 206(L) ´ 110(W)´ 153(H) mm 206(L) ´ 110(W)´ 153(H) mm 206(L) ´ 110(W)´ 153(H) mm

0~3A 0~2A

Approx. 4.5kg Approx. 4kg

206(L) ´ 110(W)´ 153(H) mm 291(L) ´ 136(W)´ 158(H) mm

0~3A

Approx. 5kg

291(L) ´ 136(W)´ 158(H) mm

3-1

DC Power Supply Users Manual

OUTPUT VOLTAGE (regulated) 0~30V

OUTPUT CURRENT (regulated) 0~5A 0~10A 0~20A 0~2A

WEIGHT Approx. 3kg Approx. 12kg Approx. 15kg Approx. 5kg

SIZE 291(L) ´ 136(W)´ 158(H) mm 365(L) ´ 265(W)´ 164(H) mm 365(L) ´ 265(W)´ 164(H) mm 291(L) ´ 136(W)´ 158(H) mm

0~50V

0~3A

Approx. 6kg

291(L) ´ 136(W)´ 158(H) mm

Technical Parameters Input voltage : 220V AC ± 10% 50HZ/60HZ ± 2HZ or 110V AC ± 10% 50HZ/60HZ ± 2HZ Voltage indication accuracy: LED display and LCD display ±1%±2digits, Pointer meter display 2.5% Current indication accuracy: LED display and LCD display ±2%±2digits, Pointer meter display 2.5% Output Voltage and Current: OUTPUT VOLTAGE (regulated) 0~15V 0~18V 0~30V 3-2

OUTPUT CURRENT(regulated) 0~2A 0~3A 0~2A 0~3A 0~2A 0~3A

Specifications Technical Parameters

3

Output Voltage and Current: OUTPUT VOLTAGE (regulated)

OUTPUT CURRENT(regulated) 0~5A 0~10A 0~20A 0~2A

0~30V

0~50V

Source Effect(Line regulation): Loading Effect(Load regulation): Ripple and noise:

0~3A CV≤0.01%+1mV CV≤0.01%+3mV CV≤0.5mVr.m.s

CC≤0.2%+1mA CC≤0.2%+3mA CC≤3mAr.m.s

To obtain the stability guarantee of source and loading effect, allow the instrument to warm up for at least 15 minutes.

3-3

Chapter 4 Maintenance Introduction Do not attempt to repair or service your instrument unless you are qualified to do so and have the relevant calibration, performance test, and service information.

Replacing the Fuse WARNING Turn off the power switch, remove the power line cord from the power socket and disconnect the test leads at output terminals before replacing the fuse. Replace it only with same type of fuse.

4-1

Maintenance Replacing the Fuse

4

Figure 4-1

15/18V FUSE

4-2

DC Power Supply Users Manual Figure 4-2

!

CAUTION

98TO122V ~ 50/60Hz

198TO242V ~ 50/60Hz

220

30/50V FUSE

4-3

WLS303

R1

C3 220uF/25V

220uF/25V

WL431

K2

K1

D6 1N4002

R80 1.4KΩF

DW1 6.2V

0.36ΩJ/5W

K3-3

R10

R30 10KΩF

11

HY3010-T PCB-HY3020(2)

2

U3

3

C10

1 2

VOT+ VOT-

HA17741

100pF -6V

5

R25

6 C83 C16

VR3 6.8KΩ

C13 2.2uF/25V

-15V

123J

8 U4C LM324N C14

D80 1N5402

10

VR4 1KΩ

9 +12V 123J C15 2.2uF/25V

12 R23 7.5KΩF

R33 24KΩF

680KΩF

7 U4B LM324N

680KΩF

D81 1N4148

C11 1uF/50V

PCB-HY3003(1)

2

123J R24 10KΩF

+12V

100pF 6

1 U4A LM324N C12

VR6 6.8KΩ

R26 15KΩF

C9

LED2 Φ5/RED

VR5 200Ω

R34 2.4KΩF

VR1 10K

100pF

R32 3.9KΩF R31

11

9

7

Q11 C1008

-6V

D10A~E 1N5408

10

10 LED1 Φ5/RED

Q4 C1008

8

HA17741

C8

R9 1KΩJ/5W

3

U2

6

K1-3 D9A~E 1N5408

D

K1-1 K1-2

1N4002

R12 1KΩF

CUR+ CUR-

Q9 C1008

3

7

9 C

R19 R18 680KΩF 10KΩF

2

PCB-HY3020(2)

DW2 2.4V C6A~B 4700uF/63V

D8A~E 1N5408

D7A~E 1N5408

K2-1

D11

C7 100pF 6

1 4

K2-3

A

8

+12V

VR2 5K

PCB-HY3020(2)

Q2 D313

5

4

K2-2

R14 1KΩF

1 4

B

R13

Q1 C1008

7

N1

Q5 C1008

B 10ΩF/0.5W

6

1 2 J5

15

(CUR+)

+12V

K3-1

CUR+

J3

VOT+

R99 0.36ΩJ/5W

Q8

10KΩF

E

24KΩF

R101

2N3055

100ΩF

K3-2

2N3055

R98B R100B R102B

F 2 3

33KΩF

0.36ΩJ/5W

Q7 2N3055

R99B

R11 100ΩJ/5W

5

R6

15 11 6 12 9 8 10

2.2uF/25V

C

Q8B

N1

R5

R22 3.9KΩF

-15V

R101B

R21 15KΩF

1KΩF/0.5W

1 8 7 6 5 4 3 2 1

PCB-HY3020(2)

0.36ΩJ/5W

Q7B 2N3055

J2

(CUR-)

R20 3.9KΩF

-6V

15 14

R103 0.36ΩJ/5W

Q3 2N3055

4

2N3055

R8 1

2 1

R103B 0.36ΩJ/5W

Q3B

R7 560ΩJ/2W

PCB-HY3003(1)

C2 220uF/25V

100ΩF

1N4002

R98 R100 R102

1N4002 H I

5

13

Q6 A708

R4 10KΩF

D4

J1

J4

12 D3

K3

D13 1N4002

R35 15KΩF

1N4002

G

R3 470ΩF/0.5W

C1

R2 20KΩF/0.5W

1N4002

D2

C4 47uF/25V

D1

DW6

2

11

430ΩF/0.5W

R36 10KΩF

C80 470uF/63V

Vout GND

Vin

3

C81 104J/63V

L7812CV

D5 1N4002

+12V U1 1

R37 30KΩF

DW4 2.4V

R81 1KΩF

PCB-HY3020(6) VR7 1KΩ

DW5 15V

Q10 A708

14 PCB-HY3003(1) VOT-

PCB-HY 3002D（2） FUSE1 5A250V

AC IN

HY3010 的电路原理图（2）借用：HY3020 的电路原理图（2）

SW1 转换开关 CS

1

6

1

5

2

N1 2

4

3

3 N1

设计

日期

材

名

审核

日期

料

称

批准

日期

重量

比例

4 MASTECH

深圳华谊仪表公司

版 本

A0

首次用于

HY3010

电路原理图(1)

图

HMJ20001B31

号 共

2

张

第

1

张