csd series stepping motor drives
... It is possible to use a switching power supply instead of a traditional power supply indicated in Fig. 2a and Fig. 2b, provided that you have a capacitor of at least 1000 µF on the output line of power supply. This capacitor should be located at a distance not greater than 1 - 2 meter from Vdc input ...
... It is possible to use a switching power supply instead of a traditional power supply indicated in Fig. 2a and Fig. 2b, provided that you have a capacitor of at least 1000 µF on the output line of power supply. This capacitor should be located at a distance not greater than 1 - 2 meter from Vdc input ...
MAX6826 Dual Ultra-Low-Voltage SOT23 µP Supervisors with Manual Reset and Watchdog Timer
... The watchdog circuit monitors the µP’s activity. If the µP does not toggle (low to high or high to low) the watchdog input (WDI) within the watchdog timeout period (1.6s nominal), reset asserts for the reset timeout period. The internal 1.6s timer can be cleared by either a reset pulse or by togglin ...
... The watchdog circuit monitors the µP’s activity. If the µP does not toggle (low to high or high to low) the watchdog input (WDI) within the watchdog timeout period (1.6s nominal), reset asserts for the reset timeout period. The internal 1.6s timer can be cleared by either a reset pulse or by togglin ...
Liebert NX UPS 40-200kVA User Manual
... Considerations in Moving the Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ...
... Considerations in Moving the Liebert NX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 ...
Electrical Engineering Objective Type Questions
... 50. The voltage drop for which of the following types of brush can be expected to be least ? (a) Graphite brushes (b) Carbon brushes (c) Metal graphite brushes (d) None of the above Ans: c 51. The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the spee ...
... 50. The voltage drop for which of the following types of brush can be expected to be least ? (a) Graphite brushes (b) Carbon brushes (c) Metal graphite brushes (d) None of the above Ans: c 51. The e.m.f. generated by a shunt wound D.C. generator isE. Now while pole flux remains constant, if the spee ...
MAX6803/MAX6804/MAX6805 4-Pin, Low-Power µP Reset Circuits with Manual Reset General Description
... threshold, or while MR is asserted. RESET remains asserted for a reset timeout period (tRP) after VCC rises above the reset threshold or MR is deasserted. RESET on the MAX6804 is push/pull. RESET on the MAX6805 is open-drain. Active-High Reset Output. RESET is asserted high while VCC is below the re ...
... threshold, or while MR is asserted. RESET remains asserted for a reset timeout period (tRP) after VCC rises above the reset threshold or MR is deasserted. RESET on the MAX6804 is push/pull. RESET on the MAX6805 is open-drain. Active-High Reset Output. RESET is asserted high while VCC is below the re ...
SIPROTEC Compact 7SD80, 7SJ80, 7SJ81, 7SK80, 7SK81, 7RW80
... sector, but it can of course also be used for other applications such as high-voltage switchgear, for example. The outstanding feature of the SIPROTEC Compact series is the compact design offering, at the same time, a high functional density and user friendliness. In the development of the SIPROTEC ...
... sector, but it can of course also be used for other applications such as high-voltage switchgear, for example. The outstanding feature of the SIPROTEC Compact series is the compact design offering, at the same time, a high functional density and user friendliness. In the development of the SIPROTEC ...
Intel Celeron™ Processor at 266 MHz, 300 MHz, 300A MHz, and
... 95, Windows NT and UNIX*. This is achieved by integrating the best attributes of Intel processors—the dynamic execution performance of the P6 microarchitecture plus the capabilities of MMX™ technology—bringing a balanced level of performance to the Basic PC buyers. The Intel® Celeron processor offer ...
... 95, Windows NT and UNIX*. This is achieved by integrating the best attributes of Intel processors—the dynamic execution performance of the P6 microarchitecture plus the capabilities of MMX™ technology—bringing a balanced level of performance to the Basic PC buyers. The Intel® Celeron processor offer ...
INDIRECT FEEDBACK COMPENSATION
... chip containing the various two-stage topologies has been fabricated in a 0.5 µm CMOS process and tested for the same load conditions. The split-length indirect compensated op-amps displayed a ten times enhancement in the gain-bandwidth and four times faster transient settling compared to the tradit ...
... chip containing the various two-stage topologies has been fabricated in a 0.5 µm CMOS process and tested for the same load conditions. The split-length indirect compensated op-amps displayed a ten times enhancement in the gain-bandwidth and four times faster transient settling compared to the tradit ...
12. CMOS Active Filters - Classes
... elements can be much better with careful layout. • In untuned analog integrated circuits, on-chip Rs can be matched to each other typically within a few %, Cs within 0.05%, with careful layout. The transconductance (Gm) of stages can be matched to about 10 - 30%. • In an active-RC filter, the time c ...
... elements can be much better with careful layout. • In untuned analog integrated circuits, on-chip Rs can be matched to each other typically within a few %, Cs within 0.05%, with careful layout. The transconductance (Gm) of stages can be matched to about 10 - 30%. • In an active-RC filter, the time c ...
UPS Uninterruptible Power Supply Adira (10 kVA, 20 kVA 3
... The content of this device description may change due to technological progress. We have tried to present the content correctly and clearly. If, however, we have made errors, we would be grateful for information about this. We do not assume any liability for errors in this operating manual or any co ...
... The content of this device description may change due to technological progress. We have tried to present the content correctly and clearly. If, however, we have made errors, we would be grateful for information about this. We do not assume any liability for errors in this operating manual or any co ...
Model 17i - User Manual - Thermo Fisher Scientific
... Thermo Fisher Scientific has contracted with one or more recycling/disposal companies in each EU Member State, and this product should be disposed of or recycled through them. Further information on Thermo Fisher Scientific’s compliance with these Directives, the recyclers in your country, and infor ...
... Thermo Fisher Scientific has contracted with one or more recycling/disposal companies in each EU Member State, and this product should be disposed of or recycled through them. Further information on Thermo Fisher Scientific’s compliance with these Directives, the recyclers in your country, and infor ...
Harmonic management of transmission and distribution systems
... computer power supplies and battery chargers[10-12]. For example, standard industrial variable speed drives use the dc or induction motor with thyristor or rectifier respectively. The converters which produce a high frequency supply will b e c o m e more c o m m o n to be used for lighting systems d ...
... computer power supplies and battery chargers[10-12]. For example, standard industrial variable speed drives use the dc or induction motor with thyristor or rectifier respectively. The converters which produce a high frequency supply will b e c o m e more c o m m o n to be used for lighting systems d ...
Power Around The World
... Frequency – Shown in hertz (cycles per second). Even if voltages are similar, a 60-hertz U.S. motor will not function properly on 50-hertz current. Number of phases – 1 and 3 are the conventional phases, which may be available. Nominal voltage – In voltages specified for direct current (d.c.) the lo ...
... Frequency – Shown in hertz (cycles per second). Even if voltages are similar, a 60-hertz U.S. motor will not function properly on 50-hertz current. Number of phases – 1 and 3 are the conventional phases, which may be available. Nominal voltage – In voltages specified for direct current (d.c.) the lo ...
Thyristor Device Data - rsp
... Updated Data Book Although some very successful older data sheets have been around in previous revisions of the Thyristor data book, all have been revised if only to make minor corrections and format changes. Over two dozen new data sheets have been added to the revision 7 data book that were not in ...
... Updated Data Book Although some very successful older data sheets have been around in previous revisions of the Thyristor data book, all have been revised if only to make minor corrections and format changes. Over two dozen new data sheets have been added to the revision 7 data book that were not in ...
MAX793/MAX794/MAX795 3.0V/3.3V Adjustable Microprocessor Supervisory Circuits General Description
... Note 7: OUT switches from BATT to VCC when VCC rises above the reset threshold, if VBATT > VRST. In this case, switchover back to VCC occurs at the exact voltage that causes reset to be asserted, however, switchover occurs 200ms prior to reset. If VBATT < VRST, OUT switches from BATT to VCC when VCC ...
... Note 7: OUT switches from BATT to VCC when VCC rises above the reset threshold, if VBATT > VRST. In this case, switchover back to VCC occurs at the exact voltage that causes reset to be asserted, however, switchover occurs 200ms prior to reset. If VBATT < VRST, OUT switches from BATT to VCC when VCC ...
CD4017 - eeshop home page
... The CD4017BM/CD4017BC is a 5-stage divide-by-10 Johnson counter with 10 decoded outputs and a carry out bit. The CD4022BM/CD4022BC is a 4-stage divide-by-8 Johnson counter with 8 decoded outputs and a carry-out bit. These counters are cleared to their zero count by a logical ‘‘1’’ on their reset lin ...
... The CD4017BM/CD4017BC is a 5-stage divide-by-10 Johnson counter with 10 decoded outputs and a carry out bit. The CD4022BM/CD4022BC is a 4-stage divide-by-8 Johnson counter with 8 decoded outputs and a carry-out bit. These counters are cleared to their zero count by a logical ‘‘1’’ on their reset lin ...
Adept MV Controller User`s Guide
... the EMC Directive after installation. 4. This Declaration applies only to those Adept product part-numbers specifically listed in this declaration. The following changes may result in the system not complying with the applicable Directives, and would void this declaration unless additional testing a ...
... the EMC Directive after installation. 4. This Declaration applies only to those Adept product part-numbers specifically listed in this declaration. The following changes may result in the system not complying with the applicable Directives, and would void this declaration unless additional testing a ...
MAX823-825 - Maxim Part Number Search
... execution more closely is to set and reset the watchdog input at different points in the program, rather than pulsing the watchdog input high-low-high or low-highlow. This technique avoids a stuck loop, in which the watchdog timer would continue to be reset inside the loop, keeping the watchdog from ...
... execution more closely is to set and reset the watchdog input at different points in the program, rather than pulsing the watchdog input high-low-high or low-highlow. This technique avoids a stuck loop, in which the watchdog timer would continue to be reset inside the loop, keeping the watchdog from ...
Breakers, Relays, and Disconnects
... While these pumps and motors are reliable, there may be instances when a failure occurs; rendering one or more pumps inoperable. A failure could occur at the individual pump, or at the power supply level. During design of the plant electrical systems, careful selection and placement of selective tr ...
... While these pumps and motors are reliable, there may be instances when a failure occurs; rendering one or more pumps inoperable. A failure could occur at the individual pump, or at the power supply level. During design of the plant electrical systems, careful selection and placement of selective tr ...
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.