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Jayaprakash, S.
- A New Single-stage Solar Based Controlled Full-bridge DC-DC Converter
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Authors
Affiliations
1 Sathyabama University, Chennai-600119, Tamilnadu, IN
2 Department of EEE, Madha Engineering College, Chennai-600069, Tamilnadu, IN
1 Sathyabama University, Chennai-600119, Tamilnadu, IN
2 Department of EEE, Madha Engineering College, Chennai-600069, Tamilnadu, IN
Source
Indian Journal of Science and Technology, Vol 7, No 9 (2014), Pagination: 1382-1386Abstract
This paper presents a new Single-stage solar based controlled full-bridge DC-DC converter. Solar model is connected on the input side and from the solar model some voltage is received. The circuit has two full wave converters connected. While the first converter acts as an inverter, the second converter functions as a rectifier in-between connected step-up transformer. Controlled converter is used to load side besides a capacitive filter being connected. Finally inductive load is connected to output side. Output voltage and output current are measured. Compared with normal voltage, this converter's source cost is less because in this work input side solar panel is used. The circuit with all the component parameters will operate at zero-voltage switching which retains the high circuit efficiency.Keywords
Full-Bridge Converter, IGBT, Index Terms - Buck-Boost Converter, MOSFET, Power Factor Correction (PFC), Single-Stage, ZCS, Zero-Voltage Switching (ZVS), ZVZC.Full Text
- Formulation Development and Evaluation of Capsule Containing Fluclaxacillin Sodium and Amoxicillin Trihydrate with Enteric Coated Granules of Lactic Acid Bacillus
Abstract Views :169 |
PDF Views:0
Authors
Affiliations
1 Department of Pharmaceutics, College of Pharmacy, Sri Ramakrishna Institute of Paramedical Sciences, 395, Sarojini Naidu Road, New Sidhapudur, Coimbatore-641044, Tamilnadu, IN
2 College of Pharmacy, Sri Ramakrishna Institute of Paramedical Sciences, 395, Sarojini Naidu Road, New Sidhapudur, Coimbatore- 641044, Tamilnadu, IN
3 Department of Pharmaceutics, K.M. College of Pharmacy, Uthangudi, Madurai, Tamilnadu, IN
4 Formulation Development Department, Medopharm Pvt. Ltd., Kayirambedu, Chennai, Tamilnadu, IN
5 Department of Pharmaceutics, K.K College of Pharmacy, Gerugambakam, Chennai, IN
1 Department of Pharmaceutics, College of Pharmacy, Sri Ramakrishna Institute of Paramedical Sciences, 395, Sarojini Naidu Road, New Sidhapudur, Coimbatore-641044, Tamilnadu, IN
2 College of Pharmacy, Sri Ramakrishna Institute of Paramedical Sciences, 395, Sarojini Naidu Road, New Sidhapudur, Coimbatore- 641044, Tamilnadu, IN
3 Department of Pharmaceutics, K.M. College of Pharmacy, Uthangudi, Madurai, Tamilnadu, IN
4 Formulation Development Department, Medopharm Pvt. Ltd., Kayirambedu, Chennai, Tamilnadu, IN
5 Department of Pharmaceutics, K.K College of Pharmacy, Gerugambakam, Chennai, IN
Source
Research Journal of Pharmaceutical Dosage Form and Technology, Vol 2, No 3 (2010), Pagination: 241-246Abstract
This work presents the preparation of capsule formulation containing ethyl cellulose coated Flucloxacillin sodium, Amoxicillin trihydrate with enteric coated Lactic acid bacillus granules. Preformulation studies were carried out for active ingredients and excipients using DSC, FTIR and exposing them into different temperature. Preparation of enteric coated Lactic acid bacillus granules was optimized using two enteric polymers cellulose acetate phthalate and hydoxy propyl methyl cellulose acetate phthalate (HP-55) using enteric test and microbial assay. Optimized one was utilized in the capsule formulation. Formulation was optimized by changing the excipients. Flow properties of the formulation were evaluated then they were filled into hard gelatin capsules by hand operated capsule filling machine. The capsules were evaluated for their thickness, weight variation, Net content and disintegration. In-vitro drug release and drug content analysis were also carried out by RPHPLC method using isocratic and gradient elution method. Microbial assay method is used for the spore count of Lactic acid bacillus. The packaging optimization also carried out by packing the capsules in three different packaging systems and by conducting the accelerated stability testing studies. In conclusion the capsule formulation in strip packing is stable in accelerated condition for a period of two months.Keywords
Antibiotics, Probiotic, Enteric Coating, Capsule.
- Transformerless Inverter for Single Phase Photo Voltaic System with Electrical Information
Abstract Views :137 |
PDF Views:0
Authors
Affiliations
1 Department of EEE, Excel College of Engineering and Technology, IN
1 Department of EEE, Excel College of Engineering and Technology, IN
Source
Digital Signal Processing, Vol 11, No 2 (2019), Pagination: 42-43Abstract
The usage of an interleaved lift converter Constrained by fluffy rationale control, joined with ordinary multi circle control and interleaved beat width tweak. The regular technique has the disadvantage of expanded current furthermore, voltage swell. The produced adjusted proposed framework will lessen the voltage and current swell and improve PFC redress. The normal conduct of the interleaved three-level Switch-Mode Rectifier (SMR) is like the voltage stress and can be diminished utilizing ZVS and ZCS delicate exchanging technique. The proposed technique is created with installed controller in the equipment.
Keywords
Photo Voltaic System, Solar Panel, DC – DC Converter Controller, PIC Controller.References
- X. Guo, R. He, J. Jian, Z. Lu, X. Sun, and J. M. Guerrero, “Leakage current elimination of four-leg inverter for transformerless three-phase PV systems’, IEEE Trans. Power Electron., vol. 31, no. 3, pp. 1841– 1846, Mar. 2016.
- C. Woo-Jun, K. Kyu-Tae, C. Yong-Won, L. Sung-Ho, and K. BongHwan, “Evaluation and analysis of transformerless photovoltaic inverter topology for efficiency improvement and reduction of leakage current,” IET Power Electronics, vol. 8, no. 2, pp. 255–267, 2015.
- H. Xiao and S. Xie, “Leakage current analytical model and application in single-phase transformerless photovoltaic grid- connected inverter,” IEEE Trans. on Electromag. Comp., vol. 52, no. 4, pp. 902-913, Nov. 2010.