Project Gemini Familiarization Manual, Rendezvous and Docking
... Guidance and control from lift-off through SSECO is provided by the booster guidance system. control. ...
... Guidance and control from lift-off through SSECO is provided by the booster guidance system. control. ...
ARCAT spec 262600 2009-9-15
... 2. Data Sheets and Publications on all major components such as the following a) Contactors b) Circuit Breaker and Fuse information including time current characteristics c) Control Power Transformers d) Pilot devices e) Relays f) Operator Interface D. Spares 1. Recommend spare parts list and list p ...
... 2. Data Sheets and Publications on all major components such as the following a) Contactors b) Circuit Breaker and Fuse information including time current characteristics c) Control Power Transformers d) Pilot devices e) Relays f) Operator Interface D. Spares 1. Recommend spare parts list and list p ...
Jitter Analysis: A Brief Guide to Jitter
... cycle-to-cycle jitter. Jitter over one cycle can have very high frequency content relative to the fundamental frequency of the circuit being tested. For example, measuring a 100MHz clock that changes period every cycle – say a longer period one cycle and a shorter period the next cycle – will have j ...
... cycle-to-cycle jitter. Jitter over one cycle can have very high frequency content relative to the fundamental frequency of the circuit being tested. For example, measuring a 100MHz clock that changes period every cycle – say a longer period one cycle and a shorter period the next cycle – will have j ...
Contents
... comparisons for usage on a daily basis. A simple wizard tool is used to dynamically change date ranges, usage calculations (High/Low/Average), and outside temperature. Results are overlaid in a line graph for easy comparison. In addition, graphical load/demand profile calendar views can be used to e ...
... comparisons for usage on a daily basis. A simple wizard tool is used to dynamically change date ranges, usage calculations (High/Low/Average), and outside temperature. Results are overlaid in a line graph for easy comparison. In addition, graphical load/demand profile calendar views can be used to e ...
TM-357A, Dynasty DX
... D The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation. D If notified by the FCC about interference, stop using the equipment at once. D Have the installation regularly checked and maintained. D Keep high-frequency sourc ...
... D The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation. D If notified by the FCC about interference, stop using the equipment at once. D Have the installation regularly checked and maintained. D Keep high-frequency sourc ...
IEANNNI /
... maintaining means 56, and a logical OR circuit 57. The time constant means 51 raises or drops a voltage V0 (hereinafter, referred to simply as V0) over time. The ?rst voltage generating means 52 generates a constant voltage V1 (hereinafter, referred to simply as V1), and the second voltage generatin ...
... maintaining means 56, and a logical OR circuit 57. The time constant means 51 raises or drops a voltage V0 (hereinafter, referred to simply as V0) over time. The ?rst voltage generating means 52 generates a constant voltage V1 (hereinafter, referred to simply as V1), and the second voltage generatin ...
Active harmonic conditioners and unity power factor rectifiers
... An active harmonic conditioner is a device using at least one static converter to meet the “harmonic compensation” function. This generic term thus actually covers a wide range of systems, distinguished by: v the number of converters used and their association mode, v their type (voltage source, cur ...
... An active harmonic conditioner is a device using at least one static converter to meet the “harmonic compensation” function. This generic term thus actually covers a wide range of systems, distinguished by: v the number of converters used and their association mode, v their type (voltage source, cur ...
CY01419711983
... that accepts true and complementary inputs and produces true and complementary outputs. The sense-amplifierbased flip-flop proposed in [7][8 ] has the main drawback that is the slave element composed by a set/reset (SR) NAND latch suffers from the possibility that one of the internal nodes will floa ...
... that accepts true and complementary inputs and produces true and complementary outputs. The sense-amplifierbased flip-flop proposed in [7][8 ] has the main drawback that is the slave element composed by a set/reset (SR) NAND latch suffers from the possibility that one of the internal nodes will floa ...
ConstantColor™ CMH TD
... voltage should be within ±3%. Supply variations of ±5% are permissible for short periods only. Where supply voltage variation is likely to occur the use of electronic control gear should be considered as this type of equipment is normally designed to function correctly for a voltage range of 200-240 ...
... voltage should be within ±3%. Supply variations of ±5% are permissible for short periods only. Where supply voltage variation is likely to occur the use of electronic control gear should be considered as this type of equipment is normally designed to function correctly for a voltage range of 200-240 ...
Using 650-V High Speed 3 IGBTs in Power Modules for... ter Performance Improvement
... small collector currents. The high turn-on losses for larger VDC and IC are attributed to a reduction of the di/dt. This effect is characteristic for the HS3 IGBT and is related to the carrier distribution, which is determined by the device design. One way to compensate this effect is the downsizing ...
... small collector currents. The high turn-on losses for larger VDC and IC are attributed to a reduction of the di/dt. This effect is characteristic for the HS3 IGBT and is related to the carrier distribution, which is determined by the device design. One way to compensate this effect is the downsizing ...
Insulated Gate Bipolar Transistor (IGBT)
... The introduction of Power MOSFET was originally regarded as a major threat to the power bipolar transistor. However, initial claims of infinite current gain for the power MOSFETs were diluted by the need to design the gate drive circuit capable of supplying the charging and discharging current of th ...
... The introduction of Power MOSFET was originally regarded as a major threat to the power bipolar transistor. However, initial claims of infinite current gain for the power MOSFETs were diluted by the need to design the gate drive circuit capable of supplying the charging and discharging current of th ...
Optimal Design for Resonant Power Transformer
... to the soft switching mode ones using the LLC resonant transformer. This is a new technique that converts the AC line power to the setting voltage as we expect, also analyses, and applies the characteristic of the LLC resonant transformer to get the optima design. Various kinds of characters of the ...
... to the soft switching mode ones using the LLC resonant transformer. This is a new technique that converts the AC line power to the setting voltage as we expect, also analyses, and applies the characteristic of the LLC resonant transformer to get the optima design. Various kinds of characters of the ...
CSI 2004 Smart-UPS On-Line SRT 5 to 10kVA 230V Guide
... 3. The primary sections of the UPS are: input disconnect and filter stage, input PFC power stage, energy storage stage (DC bus capacitor bank), output power (inverter) stage, bypass, and a battery charger. The control of power module and fault detection logic is microcontroller-based. a. The input d ...
... 3. The primary sections of the UPS are: input disconnect and filter stage, input PFC power stage, energy storage stage (DC bus capacitor bank), output power (inverter) stage, bypass, and a battery charger. The control of power module and fault detection logic is microcontroller-based. a. The input d ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.