Switched-mode power supply

in application. where no isolation and high output current with low ripple. An No isolation DC/DC converter Fig.1.1 shows the step-down DC/DC converter. When switch M is on for the duration of dTs, power is transferred from source to load and filter inductor L is charged. When switch M is off for a duration (1-d)Ts, the diode D becomes forward-biased and forms a conduction path for the filter inductor current. The voltage across the filter inductor is the reverse of the output voltage. By using filter inductor volt-second balance rule, (VDC-Vo)dTs = Vo(1-d)Ts (1.1) Vo = dVDC (1.2) As observed from equation (1.2), the regulated output voltage (Vo) is lower than the input voltage(VDC). Interleaved Buck Converter has lots of attention due to its simple and low control complexity in application where no isolation , step-down conversion ratio, and high output current with low ripple are required [1]-[5]. Fig.1.1.Step-down (Buck) converter In the conventional IBC all active…

(A.P), India-520007. ABSTRACT: Centrifugal pumps are among the more versatile and widely used products of rotating mechanical equipment found today. Pumps are essential in almost all utilities services and power generation plants. The basic principal of operation for a centrifugal pump is that a shaft is mounted on a rotating impeller inside a housing (volute) imparts energy to the fluid being moved. Centrifugal pumps utilize centrifugal force (thus their name) to increase the velocity of the…

inverter: Analysis, Design and Experimentation M K Pathak, Member, Dogga Raveendhra and Aravind Panda Abstract— this paper introduces a novel type of 3-phase single stage dc-ac converter, which is controlled by sliding mode control, offers intrinsic step up abilities. Proposed inverter is designed with lesser number of solid state semiconductor switches and small passive elements. Sliding mode controller (robust controller) is designed to control this power converter in order to achieve high…

1b Power Transformer Analysis By Ian Greene Contents Assignment Brief: - 3 Single-Phase Transformer 4 PolyPhase Transformer 5 Star-Star (Y-Y) Connection Mode 6 Delta-Star (∆-Y) Connection Mode 8 Delta-ZigZag…

b. When measuring the resistance value with the Avo 8, possible reasons for varience include a parallax error (not looking at the reading from directly above the meter), a reading error due to less divisions when measuring resistance, or the device not being properly zeroed. When measuring current, there are also fewer division, parallax is still a potential issue, and finally, incorrect zeroing of the meter. Voltage has an additional error, the loading of the meter itself. Alongside this issue,…

of maximum power transfer theorem for purely resistive DC circuits. V_L= E x R_L/(R_L+r) P_L= 〖V_L〗^2/R_L = (E^2 〖R_L〗^2/〖(R_L+r)〗^2 )/R_L = (E^2 R_L)/〖(R_L+r)〗^2 Calculating the most favourable value of the load resistor for maximum power transfer from a DC source with a internal resistance. When any arbitrary load resistance may be selected. Let R_L= kr ( k is a positive number) P_L= kr/〖(kr+r)〗^2 E^2= k/〖(k+1)〗^2 E^2/r f = k/〖(k+1)〗^2 = 1/(k+2+k^(-1) ) k+k^(-1) ≥ 2 to find…

1762-IF4 is an Allen Bradley MicroLogix 1200 System with 4 Channel Current/Voltage Analog Input Module. It has a dimension of 90 x 87 x 40.4 mm. It has Delta-Sigma converter and 4 differential (bipolar) inputs. It’s analog operating voltage range is -10 – 10 V DC normal and -10.5 – 10.5 V DC full scale. It’s analog operating current range is 4 – 20 mA normal and -21 – 21 mA full scale. It converts the analog input up to the full-scale range. It enhances the functionality of MicroLogix 1200…

Providing adequate power to the robot, and mounting components such as a computing board, USB hub, and battery on the system requires extensive engineering and design.…

with the potential of environmental disasters it is prudent to have backup systems so that your site can maintain continuity (Pagoria, 2004). Should the power ever go off in the building backup devices must be present in order to ensure that normal operations are restored ASAP. There are two devices that can restore power to equipment quickly: an uninterruptable power supply (UPS) and a power generator (Pagoria, 2004). Generators can be set to automatically start up in case of power outages and…

problem that can find itself label in such a way are power outages as this is a problem but not one likely to be viewed as overly serious as they do not happen often and when they do they tend to be brief. This issue along with what types of problems and solutions to each is what will be focused on for this…