Applications of Variable Speed Drives
... being replaced. In Fig. 7 the energy savings achieved by fitting a VSD to a rotary screw compressed air unit, compared to other methods of flow control at partial load, can be seen. In a compressor with modulating control, if the demand is 50% of the rated capacity, the energy savings associated wit ...
... being replaced. In Fig. 7 the energy savings achieved by fitting a VSD to a rotary screw compressed air unit, compared to other methods of flow control at partial load, can be seen. In a compressor with modulating control, if the demand is 50% of the rated capacity, the energy savings associated wit ...
Presentation Title Here
... limited to very low duty cycle and ripple current is reduced dramatically. ...
... limited to very low duty cycle and ripple current is reduced dramatically. ...
III. Simulation Results
... compromise was already mentioned between the bandwidth and the gain because it is known that increasing bandwidth adversely affects the gain and vice versa, so in first place we decreased the gain by playing with the parameters of the feedback transistor by increasing its width and decreasing its bi ...
... compromise was already mentioned between the bandwidth and the gain because it is known that increasing bandwidth adversely affects the gain and vice versa, so in first place we decreased the gain by playing with the parameters of the feedback transistor by increasing its width and decreasing its bi ...
DVP-SS
... The On/Off signals of the input point could be displayed through the “Input” LED, or monitor the status of the input point through the device HPP monitoring function. Once the motion of the input point is valid, the LED is on. Therefore, if errors are detected via using HPP, the LED and the input si ...
... The On/Off signals of the input point could be displayed through the “Input” LED, or monitor the status of the input point through the device HPP monitoring function. Once the motion of the input point is valid, the LED is on. Therefore, if errors are detected via using HPP, the LED and the input si ...
Individual-phase decoupled P–Q control of three
... Although the symmetrical component method can deal with a large class of unbalanced problems, the underlying assumption is that the system is balanced, except for the fault, so that the system can be decomposed into positive, negative and zero sequence impedances. To broaden the methodology for solv ...
... Although the symmetrical component method can deal with a large class of unbalanced problems, the underlying assumption is that the system is balanced, except for the fault, so that the system can be decomposed into positive, negative and zero sequence impedances. To broaden the methodology for solv ...
AN91 - Low Cost Coupling Methods for RF Power Detectors Replace Directional Couplers
... band. One input is for low frequency signals (897.6MHz ±17.5MHz) and has a coupling factor of 19dB ±1dB. The second input is for higher frequency signals (1747.5MHz ±37.5MHz) and has a coupling factor of 14dB ±1.5dB. The Murata LDC21897M190-078 directional coupler is housed in a 0805 package and req ...
... band. One input is for low frequency signals (897.6MHz ±17.5MHz) and has a coupling factor of 19dB ±1dB. The second input is for higher frequency signals (1747.5MHz ±37.5MHz) and has a coupling factor of 14dB ±1.5dB. The Murata LDC21897M190-078 directional coupler is housed in a 0805 package and req ...
FEATURES DESCRIPTION D
... into current limit, an R/C network (snubber) may be required. A snubber circuit may also enhance stability when driving large capacitive loads (> 1000pF) or inductive loads (motors, loads separated from the amplifier by long cables). Typically, 3Ω to 10Ω in series with 0.01µF to 0.1µF is adequate. S ...
... into current limit, an R/C network (snubber) may be required. A snubber circuit may also enhance stability when driving large capacitive loads (> 1000pF) or inductive loads (motors, loads separated from the amplifier by long cables). Typically, 3Ω to 10Ω in series with 0.01µF to 0.1µF is adequate. S ...
Driving LEDs with a PIC Microcontroller
... are available, which can be erased electrically or by UV light. For production, OTP (One Time Programmable) devices are available, which may only be programmed once, but are correspondingly less expensive. PICs may also be obtained in SMD packaging. Although there are some disadvantages (less memory ...
... are available, which can be erased electrically or by UV light. For production, OTP (One Time Programmable) devices are available, which may only be programmed once, but are correspondingly less expensive. PICs may also be obtained in SMD packaging. Although there are some disadvantages (less memory ...
Add up to 8 Doors of Access Control to Gemini Panels
... Up to 4 GEM-ACM1D modules can be connected to a GEMX255 control panel via standard, unshielded keypad bus wire. Each expanded Gem-Access module, ie., with installed GEM-2D plug-in PCB, is capable of controlling access through 2 doors and uses a keypad location in the system for communication. Each 2 ...
... Up to 4 GEM-ACM1D modules can be connected to a GEMX255 control panel via standard, unshielded keypad bus wire. Each expanded Gem-Access module, ie., with installed GEM-2D plug-in PCB, is capable of controlling access through 2 doors and uses a keypad location in the system for communication. Each 2 ...
FSL138MRT Green-Mode Fairchild Power Switch (FPS™) for High Input Voltage
... protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified tim ...
... protection circuit should trigger to protect the SMPS. However, even when the SMPS is in normal operation, the overload protection circuit can be triggered during the load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified tim ...
MAX4501-02
... The logic-level thresholds are CMOS/TTL compatible when V+ is +5V. As V+ rises, the threshold increases slightly. When V+ reaches +12V, the logic-level threshold is about 3V—above the TTL guaranteed high-level minimum of 2.8V, but still compatible with CMOS outputs. Do not connect the MAX4501/MAX450 ...
... The logic-level thresholds are CMOS/TTL compatible when V+ is +5V. As V+ rises, the threshold increases slightly. When V+ reaches +12V, the logic-level threshold is about 3V—above the TTL guaranteed high-level minimum of 2.8V, but still compatible with CMOS outputs. Do not connect the MAX4501/MAX450 ...
ULTRA SLIMPAK G478-0001 Frequency Input, Field Configurable Isolator
... errors. The maximum input amplitude is 150 Vrms. The output can be set for 0-5V, 0-10V, 0-1mA, 0-20mA or 4-20mA. The G478 to be field configured for virtually any frequency input to DC signal output within the ranges specified. Calibration utilizes ‘Touch-Cal’ technology in which the user simply app ...
... errors. The maximum input amplitude is 150 Vrms. The output can be set for 0-5V, 0-10V, 0-1mA, 0-20mA or 4-20mA. The G478 to be field configured for virtually any frequency input to DC signal output within the ranges specified. Calibration utilizes ‘Touch-Cal’ technology in which the user simply app ...
STABILITY ANALYSIS AND OPTIMAL CONTROL DESIGN FOR AC-DC POWER SYSTEM WITH by
... Many studies have been performed on the constant power loads since they can be encountered in many different areas. Let us mention, for example, a load fed by a motor, by a converter, or even a load in a microgrid. This type of load is completely different from the regular loads. Indeed, the constan ...
... Many studies have been performed on the constant power loads since they can be encountered in many different areas. Let us mention, for example, a load fed by a motor, by a converter, or even a load in a microgrid. This type of load is completely different from the regular loads. Indeed, the constan ...
Diesel-Electric Propulsion Systems
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
... are based on the principle of speed controlled AC or DC motors driving the propeller directly or by gearing. The most reliable and low noise design is the direct drive. Electric propulsion systems are designed according to the „power station principle“. That means that under normal conditions all al ...
ABB The - Voltimum
... Operating condition in an electrically damaged circuit where there is an accidental or intentional connection by a relatively low resistance between two points of a circuit which are normally at different voltages ...
... Operating condition in an electrically damaged circuit where there is an accidental or intentional connection by a relatively low resistance between two points of a circuit which are normally at different voltages ...
A v
... • This cancels most of the input • Maintains (very) small differential signal at input • Reduces the gain, but if the open loop gain is ~, who cares? • Good discussion of negative feedback here: http://www.allaboutcircuits.com/vol_3/chpt_8/4.html ...
... • This cancels most of the input • Maintains (very) small differential signal at input • Reduces the gain, but if the open loop gain is ~, who cares? • Good discussion of negative feedback here: http://www.allaboutcircuits.com/vol_3/chpt_8/4.html ...
Control system
A control system is a device, or set of devices, that manages, commands, directs or regulates the behavior of other devices or systems. Industrial control systems are used in industrial production for controlling equipment or machines.There are two common classes of control systems, open loop control systems and closed loop control systems. In open loop control systems output is generated based on inputs. In closed loop control systems current output is taken into consideration and corrections are made based on feedback. A closed loop system is also called a feedback control system. The human body is a classic example of feedback systems.