NCV70501 - Micro-Stepping Motor Driver
... current−translation table and takes the next micro−step depending on the clock signal on the “NXT” input pin and the status of the “DIR” (= direction) register or input pin. The chip provides an error message if stall, an electrical error or an elevated junction temperature is detected. It is using ...
... current−translation table and takes the next micro−step depending on the clock signal on the “NXT” input pin and the status of the “DIR” (= direction) register or input pin. The chip provides an error message if stall, an electrical error or an elevated junction temperature is detected. It is using ...
Aalborg Universitet Single stage grid converters for battery energy storage
... presented for the considered switching frequency of 1050Hz, the same frequency as the output voltage. The advantage of the level-shift PWM over the phase-shift PWM can be noticed by comparing the output line voltage with 3L-ANPC and 3L-FC, Fig.8 and Fig.9, where the ripple is minimized to VDC / 2 . ...
... presented for the considered switching frequency of 1050Hz, the same frequency as the output voltage. The advantage of the level-shift PWM over the phase-shift PWM can be noticed by comparing the output line voltage with 3L-ANPC and 3L-FC, Fig.8 and Fig.9, where the ripple is minimized to VDC / 2 . ...
Application Note Recommended Circuits and PCB Layout
... The decoupling capacitor is dependent upon the quality of regulated power supply voltage VCC. In most applications, a .33 µF (typical) ceramic is sufficient. The supply voltage VCC has to source less than 1 mA typically in 3-V applications in receive mode plus an additive base current of the drive t ...
... The decoupling capacitor is dependent upon the quality of regulated power supply voltage VCC. In most applications, a .33 µF (typical) ceramic is sufficient. The supply voltage VCC has to source less than 1 mA typically in 3-V applications in receive mode plus an additive base current of the drive t ...
MAX15022 Dual, 4A/2A, 4MHz, Step-Down DC-DC Regulator with Dual LDO Controllers General Description
... each output can be adjusted from 0.6V to the input supply (VAVIN). The MAX15022 delivers up to 4A (regulator 1) and 2A (regulator 2) of output current with two LDO controllers that can be used to drive two external PNP transistors to provide two additional outputs. This device offers the ability to ...
... each output can be adjusted from 0.6V to the input supply (VAVIN). The MAX15022 delivers up to 4A (regulator 1) and 2A (regulator 2) of output current with two LDO controllers that can be used to drive two external PNP transistors to provide two additional outputs. This device offers the ability to ...
MAX2205–MAX2208 RF Power Detectors in UCSP General Description Features
... detector goes to an op amp in an analog GSM powercontrol scheme, or to an ADC in other systems such as TDMA or discrete-time GSM power control. The MAX2205 has high-input impedance for use with high-value resistive tapping from a CDMA power amplifier. This coupling method is the lowest cost and lowe ...
... detector goes to an op amp in an analog GSM powercontrol scheme, or to an ADC in other systems such as TDMA or discrete-time GSM power control. The MAX2205 has high-input impedance for use with high-value resistive tapping from a CDMA power amplifier. This coupling method is the lowest cost and lowe ...
The high voltage (HV) pulse radiation of a discone antenna
... chosen one, and its value still enhances with the diameter. V. RESULTS The discone antenna is fed fabricated as shown in Fig 8. The two portions, cone and disc are given ground and HV , respectively, maintaining the required gap for 50kV. An impulse signal generated from a high voltage pulser, as ...
... chosen one, and its value still enhances with the diameter. V. RESULTS The discone antenna is fed fabricated as shown in Fig 8. The two portions, cone and disc are given ground and HV , respectively, maintaining the required gap for 50kV. An impulse signal generated from a high voltage pulser, as ...
BDTIC www.BDTIC.com/infineon Industrial Power Control
... fast and easy design of highly reliable systems. The galvanic isolation between input logic and driver output is achieved by utilizing on-chip Coreless Transformer Technology. The wide input range supports the direct connection of various signal sources like DSPs and microcontrollers. The separated ...
... fast and easy design of highly reliable systems. The galvanic isolation between input logic and driver output is achieved by utilizing on-chip Coreless Transformer Technology. The wide input range supports the direct connection of various signal sources like DSPs and microcontrollers. The separated ...
MAX4854H/MAX4854HL Quad SPST, High-Bandwidth, Signal Line Protection Switch General Description
... These devices feature overvoltage protection by putting the switch into high-impedance mode when the switch input exceeds VCC. These switches have low 27.5pF on-channel capacitance, which allows for 12Mbps switching of the data signals for USB 2.0 full speed/1.1 applications. The MAX4854H/MAX4854HL ...
... These devices feature overvoltage protection by putting the switch into high-impedance mode when the switch input exceeds VCC. These switches have low 27.5pF on-channel capacitance, which allows for 12Mbps switching of the data signals for USB 2.0 full speed/1.1 applications. The MAX4854H/MAX4854HL ...
MAX4826–MAX4831 50mA/100mA Current-Limit Switches with NO-LOAD Flag in µDFN General Description
... counter starts. If the load-transient fault persists beyond the fault-blanking timeout, FFLG asserts low. Load-transient faults less than tBLANK do not cause FFLG assertion. Only current-limit faults are blanked. A thermal fault and input voltage drops below the UVLO threshold cause FFLG to assert i ...
... counter starts. If the load-transient fault persists beyond the fault-blanking timeout, FFLG asserts low. Load-transient faults less than tBLANK do not cause FFLG assertion. Only current-limit faults are blanked. A thermal fault and input voltage drops below the UVLO threshold cause FFLG to assert i ...
LTC1799 - 1kHz to 33MHz Resistor Set SOT
... resistor can vary from 3k to 1M to select a master oscillator frequency between 100kHz and 33MHz (5V supply). The three-state DIV input determines whether the master clock is divided by 1, 10 or 100 before driving the output, providing three frequency ranges spanning 1kHz to 33MHz (5V supply). The L ...
... resistor can vary from 3k to 1M to select a master oscillator frequency between 100kHz and 33MHz (5V supply). The three-state DIV input determines whether the master clock is divided by 1, 10 or 100 before driving the output, providing three frequency ranges spanning 1kHz to 33MHz (5V supply). The L ...
Analog Devices Welcomes Hittite Microwave Corporation
... The HMC221B(E) is a low-cost SPDT switch in a 6-lead SOT26 plastic package for use in general switching applications which require very low insertion loss and very small size. This device can control signals from DC to 3 GHz and is especially suited for 900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applic ...
... The HMC221B(E) is a low-cost SPDT switch in a 6-lead SOT26 plastic package for use in general switching applications which require very low insertion loss and very small size. This device can control signals from DC to 3 GHz and is especially suited for 900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applic ...
PICo Digital Signal Processor Design Overview
... PICo specified the delay metric to represent the worst case access delay of the DSP. In our design this delay was dominated by the adder/subtractor circuit. Initially we designed the adder using a ripple-carry design. However, this design produced a significant worst-case delay, and considering the ...
... PICo specified the delay metric to represent the worst case access delay of the DSP. In our design this delay was dominated by the adder/subtractor circuit. Initially we designed the adder using a ripple-carry design. However, this design produced a significant worst-case delay, and considering the ...
EUP8092 1.5A Linear Li-Ion/Polymer Charger IC with Integrated FET and Charger Timer
... Li-Ion/Polymer battery charger IC designed for handheld devices. This charger is designed to work with various types of AC adapters or a USB port and capable of operating with an input voltage as low as 2.65V. The EUP8092 operates as a linear charger and charges the battery in three phases: trickle ...
... Li-Ion/Polymer battery charger IC designed for handheld devices. This charger is designed to work with various types of AC adapters or a USB port and capable of operating with an input voltage as low as 2.65V. The EUP8092 operates as a linear charger and charges the battery in three phases: trickle ...
P85327C
... NOTE: The maximum wire impedence between strobes shall not exceed 35 OHMS. The maximum number of strobes on a single notification appliance circuit shall not exceed 47. CAUTION: Speaker Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off. When calcu ...
... NOTE: The maximum wire impedence between strobes shall not exceed 35 OHMS. The maximum number of strobes on a single notification appliance circuit shall not exceed 47. CAUTION: Speaker Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off. When calcu ...
9.8 GHz RF High Performance Synthesizer Operating From a Buck
... power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light-load efficiency. The family requires few ...
... power-good flag, precision enable, internal soft-start, extendable soft-start, and tracking provide a flexible and easy to use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light-load efficiency. The family requires few ...
A Wide-band CMOS Low-Noise Amplifier for TV Tuner
... matching and low noise figure via setting the on-chip spiral inductor and the gate-source capacitor of input MOSFET to resonate at the required frequency. However, it does not suit for the tuner applications because the bandwidth is restricted by the LC resonator. The resistance feedback common-sour ...
... matching and low noise figure via setting the on-chip spiral inductor and the gate-source capacitor of input MOSFET to resonate at the required frequency. However, it does not suit for the tuner applications because the bandwidth is restricted by the LC resonator. The resistance feedback common-sour ...
Twelve-Sided Polygonal Voltage Space Vector
... 5th and 7th harmonics in the motor phase voltage. These harmonic currents restrict the bandwidth of the closed-loop current controllers and require a different approach for current controller design in the overmodulation region [8]. Multilevel inverter-fed induction motor drives can also be realized ...
... 5th and 7th harmonics in the motor phase voltage. These harmonic currents restrict the bandwidth of the closed-loop current controllers and require a different approach for current controller design in the overmodulation region [8]. Multilevel inverter-fed induction motor drives can also be realized ...
IEEE SM 01 Paper
... As shown in Figure 8, The AEP-CPL 138 kV voltage was ramped from 0 kV. The ramp ended at 138 kV although the plot, due to TFR limitations, does not show more than the part up to about 60 kV. On the CFE side, the voltages and currents remained undisturbed during the ramping phase. During operation of ...
... As shown in Figure 8, The AEP-CPL 138 kV voltage was ramped from 0 kV. The ramp ended at 138 kV although the plot, due to TFR limitations, does not show more than the part up to about 60 kV. On the CFE side, the voltages and currents remained undisturbed during the ramping phase. During operation of ...
MAX2181 FM Automotive Low-Noise Amplifier General Description Features
... For best performance, the device must be mounted on a PCB that is designed for a low thermal resistance. A thermal ground must be placed near the device. This can consist of a mounting screw to a large thermal mass, ideally placed no more than 5mm from the package. The backside ground of the MAX2181 ...
... For best performance, the device must be mounted on a PCB that is designed for a low thermal resistance. A thermal ground must be placed near the device. This can consist of a mounting screw to a large thermal mass, ideally placed no more than 5mm from the package. The backside ground of the MAX2181 ...
MAX1566/MAX1567 Six-Channel, High-Efficiency, Digital Camera Power Supplies General Description
... Note 2: The MAX1566/MAX1567 are powered from the step-up output (PVSU). An internal low-voltage startup oscillator drives the step-up starting at approximately 0.9V until PVSU reaches approximately 2.5V. When PVSU reaches 2.5V, the main control circuitry takes over. Once the step-up is up and runnin ...
... Note 2: The MAX1566/MAX1567 are powered from the step-up output (PVSU). An internal low-voltage startup oscillator drives the step-up starting at approximately 0.9V until PVSU reaches approximately 2.5V. When PVSU reaches 2.5V, the main control circuitry takes over. Once the step-up is up and runnin ...
Permanent Electrical Safety Devices Keep Workers
... The “Voltmeter” for LOTO: • The writers of 70E only ‘envisioned’ a voltmeter to validate zero electrical energy. • This portable tool precisely meets the ‘letter of the law’ ...
... The “Voltmeter” for LOTO: • The writers of 70E only ‘envisioned’ a voltmeter to validate zero electrical energy. • This portable tool precisely meets the ‘letter of the law’ ...
POWER AMPLIFIER OWNER`S MANUAL
... 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the ...
... 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the ...
C1415 Controller Board Setup and Operating
... Please note that the following installation instructions must be followed in strict accordance with the order outlined below. 1. Verify controller board is wired up properly per the wiring diagram supplied with the actuator. 2. Do not connect any command signals to the actuator at this time. 3. Veri ...
... Please note that the following installation instructions must be followed in strict accordance with the order outlined below. 1. Verify controller board is wired up properly per the wiring diagram supplied with the actuator. 2. Do not connect any command signals to the actuator at this time. 3. Veri ...
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.