chandrashekar yashoda

• 3 PHASE 800KVA UPS Testing and Validation

• Improved system power consumption by incorporating low-power design techniques into the development process.
• Met regularly with clients to discuss project specifications and milestones and provide updates on progress.
• 100WATT powersupply design , testing and qualified with MIL STD 461 standard.

1.100KV,1A HIGH VOLTAGE ESP POWERSUPPLY

This power supply is design for ESP applications.high frequency IGBT based powersupply with Active front end .

voltage rating:1KV-100KV

current rating :1A

frequency :20Khz

features:

• high efficiency
• 0.99 power factor
• Low voltage ripple
• OIL cooled Nano Crystalyne HVHF transformer.

2.15KV,8A CAPACITOR CHARGING POWERSUPPLY

This power supply is design for high energy capacitor charging applications.high frequency IGBT based powersupply.

voltage rating:1KV-15KV

current rating :8A

frequency :20Khz

features:

• IGBT Based Resonant converters
• Short circuit protection
• Low voltage ripple
• HV insulation potting HF transformer

1. IPR BATTERY CHARGE AND DISCHARGE DEVICE:

This powersupply designed for Charge the lithium Ion battery in Airforce station.

• Input: 230VAC or 27VDC
• Output: This power supply have 4 isolate outputs for battery charging and discharging.
• A) Fast charging: Voltage=14.5V Current=1Amp s

Time: 3hrs

• B) Slow charging: Voltage=14.5V Current=0.25Amp s

Time: 14hrs

• C) Fast discharging: Voltage=10V Current=0.8Amp s
• D) Slow discharging: Voltage=10V Current=0.5Amps

2. 310WATT MIL.STD LASER DIODEDRIVER

Input: 24VDC

Output:31V,10A

Description: This power supply is a mil grade 461E standard power supply with water cooled for the laser diode .

● This power supply has CV mode and CCmode.

● And we designed this power supply for very low ripple voltage. i.e. 30mv.

● The power supply also has provision for remote operation i.e. RS-232

3. SOLID STATE IGBT MODULATOR

INPUT:415VAC

OUTPUT:50KV,0- 100Amps

DESCRIPTION: This Power supply is designed for magnetron applications in ISRO sriharikota.

Features:

• high current IGBT technology
• high voltage pulse transformer with oil cooled.
• filament powersupply.

4.MULTI CHANNEL EXPERIMENTAL SETUP FOR LASER DIODE

INPUT:230VAC,50HZ

DESCRIPTION: This system is designed for LASER DIODE application with variable Output voltage levels.

●This system is provided with 21 multiple outputs :

1) 2V, 2V DRIVER -4NO’S

2)2V, 2A TEC DRIVER -4NO’S

3)6V, 12A LASER DIODE DRIVER -8NO, S

4) 12V, 12A LASER DIODE DRIVER-4NO’S

5) 20-40 ns PULSED LASER DIODE DRIVER

● This system has provision local and remote mode operation i.e GUI, RS 485