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MC74HC4316A - Quad Analog Switch/Multiplexer/Demultiplexer
MC74HC4316A - Quad Analog Switch/Multiplexer/Demultiplexer

Solving Challenges in Industrial Applications
Solving Challenges in Industrial Applications

... improving reliability and safety. However, these control systems can take up much more space than is available at the motor, so the need for miniaturization is critical. The third major trend across industrial applications is an increased focus on lower power consuming electronics. This is mostly a ...
cpe323msp430_dmalcd
cpe323msp430_dmalcd

... Voltages required for the LCD signals are supplied externally to pins R33, R23, R13, and R03 Using an equally weighted resistor divider ladder between these pins establishes the analog voltages as shown in Table 24−1 The resistor value R is typically 680 k ...
CPE 323 Introduction to Embedded Computer Systems: DMA
CPE 323 Introduction to Embedded Computer Systems: DMA

... Voltages required for the LCD signals are supplied externally to pins R33, R23, R13, and R03 Using an equally weighted resistor divider ladder between these pins establishes the analog voltages as shown in Table 24−1 The resistor value R is typically 680 k ...
AXIMA 2000/4000 Installation Manual
AXIMA 2000/4000 Installation Manual

SMC Controllers with Pump Control
SMC Controllers with Pump Control

Autonomous Blimp - The University of Akron
Autonomous Blimp - The University of Akron

... Unmanned Aerial Vehicles (UAVs) operate under remote or autonomous control and are used for surveillance applications, usually when human interaction is not possible. A blimp UAV with feedback control is of special interest because of their ability for long flight duration and low power operation. T ...
S280-75-2
S280-75-2

... in Figure 6. Line current conditions are continuously monitored by the three bushing-type current transformers in the recloser. output from these transformers is fed to the trip network in the control, which includes: the minimum-trip resistors, isolation transformers, and rectifier circuits. If cur ...
Invertek Optidrive E2 IP55 Manual
Invertek Optidrive E2 IP55 Manual

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... C32 and C33 help increase the switching speeds of Q2 and Q4. U8 and U10 prvide optical isolation. Low impedance gate drive is provided from each isoltaled gate drive voltage buss by U9 and U11. ...
BACnetProductCatalog
BACnetProductCatalog

CD80 Portable Packs
CD80 Portable Packs

... switching duty applications and shall be a UL and CSA recognized device. I. DIMMERS, SOLID STATE RELAY (SSR) 1. SSR devices shall be encapsulated, epoxy filled high impact plastic cases with optically isolated firing circuits, control circuitry, and two silicon controlled rectifiers (SCRs). There sh ...
SP1000-50(E) Specifications - Word Format
SP1000-50(E) Specifications - Word Format

... of being padlocked in the OFF position for installation and maintenance safety, and shall also be capable of being locked in the ON position without affecting the tripping characteristics of the circuit breaker. The controller door shall have a locking type handle and three point cam and roller vaul ...
Limitorque QX - Flowserve Corporation
Limitorque QX - Flowserve Corporation

... a contactless magnet that excites Hall-effect devices to provide redundant, 12-bit resolution over 360 degrees. This redundancy, part of the BIST (built-in self-test) feature, means the device can continue to function reliably until a number of faults have been accumulated. When a device is designed ...
SP1250-50(D) Specifications - Word Format
SP1250-50(D) Specifications - Word Format

SP1350-50(D)-Specifications-Word Format
SP1350-50(D)-Specifications-Word Format

SP1930-50(E) Specifications - Word Format
SP1930-50(E) Specifications - Word Format

... of being padlocked in the OFF position for installation and maintenance safety, and shall also be capable of being locked in the ON position without affecting the tripping characteristics of the circuit breaker. The controller door shall have a locking type handle and three point cam and roller vaul ...
SP1300-50(E) Specifications - Word Format
SP1300-50(E) Specifications - Word Format

S260-80-2
S260-80-2

... The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it. A competent technician has these qua ...
S280-79-12
S280-79-12

... temperature. Never store lead acid batteries at temperature exceeding 47°C (117°F), as damage can result in approximately one month. IMPORTANT: To maintain sufficient charge to operate the control and prevent battery cell damage, the sealed lead-acid batteries should be charged after no more than th ...
troubleshooting guide
troubleshooting guide

... 5. Now, initiate a Stage 2 heat call from the booster’s room thermostat. The damper motor should go to a fully open (CCW) position. (See Figure 2) 6. If the damper does not move to an opened and closed position as shown in Figures 1 and 2, check the damper system for mechanical binding and/or for CC ...
Aalborg Universitet A Quasi-Type-1 Phase-Locked Loop Structure Doval-Gandoy, Jesus
Aalborg Universitet A Quasi-Type-1 Phase-Locked Loop Structure Doval-Gandoy, Jesus

... amplitude normalization scheme (ANS) is included in the PLL structure [20]. As highlighted in Fig. 5(b), the ANS is realized by passing the d-axis voltage component through LPF in order to provide an estimation of Vi and dividing v̄q (the output signal of the q-axis LPF) by this estimation. It is wo ...
HAIPRODUCTTECHNICALSH EET How HAI
HAIPRODUCTTECHNICALSH EET How HAI

... Connects up to six third-party switches to the Omni-Bus network. Six LED outputs control two-lead bi-color or single color LED indicators for each switch. Omni-Bus component designed for HAI’s international markets using 220-240V~, 50Hz. Works with any momentary switch. Installs at location of switc ...
HERRTRONIC MD SERIES HUMIDIFIERS
HERRTRONIC MD SERIES HUMIDIFIERS

MN1919WEN MicroFlex
MN1919WEN MicroFlex

... equipment. This equipment may be connected to other machines that have rotating parts or parts that are controlled by this equipment. Improper use can cause serious or fatal injury. MEDICAL DEVICE / PACEMAKER DANGER: Magnetic and electromagnetic fields in the vicinity of current carrying conductors ...
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Control theory



Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback. The usual objective of control theory is to control a system, often called the plant, so its output follows a desired control signal, called the reference, which may be a fixed or changing value. To do this a controller is designed, which monitors the output and compares it with the reference. The difference between actual and desired output, called the error signal, is applied as feedback to the input of the system, to bring the actual output closer to the reference. Some topics studied in control theory are stability (whether the output will converge to the reference value or oscillate about it), controllability and observability.Extensive use is usually made of a diagrammatic style known as the block diagram. The transfer function, also known as the system function or network function, is a mathematical representation of the relation between the input and output based on the differential equations describing the system.Although a major application of control theory is in control systems engineering, which deals with the design of process control systems for industry, other applications range far beyond this. As the general theory of feedback systems, control theory is useful wherever feedback occurs. A few examples are in physiology, electronics, climate modeling, machine design, ecosystems, navigation, neural networks, predator-prey interaction, gene expression, and production theory.
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