Contents
O-30V DC SINGLE Or DUAL TYPE VARIABLE POWER SUPPLY.
When the selection of power supply specifications, the following questions must be need:
- How much current does the system require
- How much ripple voltage can be tolerated?
- How much voltage drift with temperature is acceptable?
- Do we use one lager regulator or many individual regulators to match the various load ?
SINGLE 0 TO 30V/ 1A To 5A
- Input : 230 Volts AC 10% 50 Hz Line
- Regulation : 0.01% for 10% Line Variations
- Load Variation : 0.01% from no load to full load
- Ripple Noise : Less than 3mVpp
- Operating Temperature : 10 to 50C
- Meters : 7 segment 3 Digit Voltmeter
- 7 segment 3 Digit Ammeter
- Over load and short Circuit Protection
- LED with Buzzer Indication.
FIXED POWER SUPPLY
DUAL POWER SUPPLY UNIT
0-30V; 1 Amps to 5 Amps
0-50V; 1 Amps to 5 Amps
0-100V; 100mA to 500mA
0-300V; 100mA to 500mA
FIXED POWER SUPPLY:-
RANGES:
- 0-5V, 1 Amps to 5 Amps
- 0 12V, 1 A to 5 Amps
- 0 15V, 1 A to 5 Amps0-5V,2 Amps,
- 12V; 500mA
- 0-5V; 2 Amps,
- 15V; 500mA
- 30V; 200mV
Single or Dual power supply ( 0 – 30v / 0-2 Amps)
Fixed power supply with clock pulse
Fixed +5v,-5v,+12v,-12, Clock pulse 100Hz to 10k Hz.
SPECIFICATIONS FOR REGULATED POWER SUPPLY:
| INPUT VOLTAGE | 230V AC at 50Hz |
| OUTPUT VOLTAGE | 0 -30V DC |
| LINE REGULATION | 0.05% |
| LOAD REGULATION | 0.05% |
| OVERSHOOT | turn-on or turn-off |
| OPERATING TEMPERATURE | 25C TO +85C |
| OVERLOAD | Buit-in must. |
REGULATED POWER SUPPLY (RPSU) vs SWITCH MODE POWER SUPPLY (SMPS)
| GENERAL | SMPS | RSPU |
| Efficiency | 65 – 85% | 25 – 50% |
| Ripple | 20 – 50 mV p-p | 5nV p-p |
| Temperature | 20 – 40 c | 50 – 100 c |
| Regulation | 0.3% | 0.1% or better |
| Weight | 65 w/lb | 22 w/lb |
| Volume | 1 cu in/w | 2 to 3 cu in/w |
| Isolation from Transients | Very good | Inferior, noisy lines |
| RFI/EMI | Troublesome | Less likely |
| Magnetics | Small design | Bulky |
| Reliability | Better to cooler operation | Higher temp., makes poorer |
| Cost | More, but trend is decreasing | Less for smaller ranges,Test MOSFET |
