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... one stage to the next. They are generally provided with a Clear or Reset connection so that they can be "SET" or "RESET" as required. A shift register is controlled with certain clock pulses by inhibiting the clock from the input of the register if shift is not required. A shift register is also abl ...
... one stage to the next. They are generally provided with a Clear or Reset connection so that they can be "SET" or "RESET" as required. A shift register is controlled with certain clock pulses by inhibiting the clock from the input of the register if shift is not required. A shift register is also abl ...
DN116 - Micropower 12-Bit ADCs Shrink Board Space
... Resistive Touchscreen Interface Figure 3 shows the LTC1298 in a 4-wire resistive touchscreen application. Transistor pairs Q1 and Q3, Q2 and Q4 apply 5V and ground to the X axis and Y axis, respectively. The LTC1298 (U1), with its 2-channel multiplexer, digitizes the voltage generated by each axis a ...
... Resistive Touchscreen Interface Figure 3 shows the LTC1298 in a 4-wire resistive touchscreen application. Transistor pairs Q1 and Q3, Q2 and Q4 apply 5V and ground to the X axis and Y axis, respectively. The LTC1298 (U1), with its 2-channel multiplexer, digitizes the voltage generated by each axis a ...
Line Coding
... Inversion at middle of bit interval is used for synchronization Presence or absence of additional transition at beginning of interval identifies the bit Transition means binary 0; no transition means 1 Requires two signal changes to represent binary 0; only one to represent 1 ...
... Inversion at middle of bit interval is used for synchronization Presence or absence of additional transition at beginning of interval identifies the bit Transition means binary 0; no transition means 1 Requires two signal changes to represent binary 0; only one to represent 1 ...
Vanya Ignatova*, Pierre Granjon**, Seddik Bacha
... domain, currents and voltages spectra are obtained by application of Fourier transform. This domain can not give an analytical harmonic solution for the considered system and the relations between harmonics can not be expressed. In the frequency domain, several methods for power network harmonic ana ...
... domain, currents and voltages spectra are obtained by application of Fourier transform. This domain can not give an analytical harmonic solution for the considered system and the relations between harmonics can not be expressed. In the frequency domain, several methods for power network harmonic ana ...
Implementation of Power Supply Volume Control
... output of PSVC is 0. All volume control is performed using digital gain only. Enabling of the PSVC starts the PSVC PWM. The TAS5508 automatically calculates the volume setting for the power supply and digital volume for all channels based on the flow chart shown in Figure 3. If D3 is set to 1, the s ...
... output of PSVC is 0. All volume control is performed using digital gain only. Enabling of the PSVC starts the PSVC PWM. The TAS5508 automatically calculates the volume setting for the power supply and digital volume for all channels based on the flow chart shown in Figure 3. If D3 is set to 1, the s ...
FC Series - Glassman High Voltage
... to 10%, typical deviation is 2% of output voltage with recovery to within 1% in 500 µs and to 0.1% in 1 ms. Ripple: <0.02% of rated voltage plus 300mV RMS at full load. Current Regulation: Better than 0.1% from short circuit to rated voltage at any load condition. Voltage Monitor: 0 to +10 V equival ...
... to 10%, typical deviation is 2% of output voltage with recovery to within 1% in 500 µs and to 0.1% in 1 ms. Ripple: <0.02% of rated voltage plus 300mV RMS at full load. Current Regulation: Better than 0.1% from short circuit to rated voltage at any load condition. Voltage Monitor: 0 to +10 V equival ...
SMPS BASIC CONVERTERS INHERENT PROTECTION
... possible to sense the circuit current and modify the drive to the transistor switch to either a current limiting or a current shut down mode. ...
... possible to sense the circuit current and modify the drive to the transistor switch to either a current limiting or a current shut down mode. ...
CHAPTER-3 DSTATCOM
... (IGBT). In the distribution voltage level, the switching device is generally the IGBT due to its lower switching losses and reduced size. In addition, the power rating of custom power devices is relatively low. As a result, the output voltage control of the DSTATCOM/BESS can be achieved through puls ...
... (IGBT). In the distribution voltage level, the switching device is generally the IGBT due to its lower switching losses and reduced size. In addition, the power rating of custom power devices is relatively low. As a result, the output voltage control of the DSTATCOM/BESS can be achieved through puls ...
How to Set Control Voltage In an Application Circuit
... shows the 1.2kΩ resistor would drop the voltage from 3V to about 1.4V in this case. The same plot shows that at Vcont=1.4V, Pout and IDD are only slightly lowered. In conclusion, a single serial resistor of 1.2 to 1.5kΩ can lower a supply voltage of 3 to 3.3V to the appropriate range for Vcont. The ...
... shows the 1.2kΩ resistor would drop the voltage from 3V to about 1.4V in this case. The same plot shows that at Vcont=1.4V, Pout and IDD are only slightly lowered. In conclusion, a single serial resistor of 1.2 to 1.5kΩ can lower a supply voltage of 3 to 3.3V to the appropriate range for Vcont. The ...
50W - 100W, Rugged, Ultra-compact, Industrial DC/DC Converter
... by natural convection. Low component count, large design headrooms, and the use of components with established reliability result in a high MTBF. It features 135kHz switching frequency. Additional ruggedizing and conformal coating are available for applications requiring higher immunity to shock, vi ...
... by natural convection. Low component count, large design headrooms, and the use of components with established reliability result in a high MTBF. It features 135kHz switching frequency. Additional ruggedizing and conformal coating are available for applications requiring higher immunity to shock, vi ...
Lab 8: Series RC Circuit
... – Use a current marker instead of a voltage marker • Show three periods. ...
... – Use a current marker instead of a voltage marker • Show three periods. ...
12 Volt Power Supplies — Reliable Voltage for any
... • Provides steady, pulsed, Temporal Code 3, and California Schools Code bell outputs. • Supervised silence switch disables the bell output during service or maintenance. ...
... • Provides steady, pulsed, Temporal Code 3, and California Schools Code bell outputs. • Supervised silence switch disables the bell output during service or maintenance. ...
UMZ-837-D16-G 数据资料DataSheet下载
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
High Efficiency Power Amplifier Product Instructions
... moisture, direct sunshine and violent during the use. It shall be kept away from radiating objects or heat sources and well ventilated. The optimum working environment temperature is 5-28ºC and relative humidity <95%. If the equipment is in operation for a long time and ambient temperature is too hi ...
... moisture, direct sunshine and violent during the use. It shall be kept away from radiating objects or heat sources and well ventilated. The optimum working environment temperature is 5-28ºC and relative humidity <95%. If the equipment is in operation for a long time and ambient temperature is too hi ...
AP1533
... AP1533 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 99%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An ...
... AP1533 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 99%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An ...
Power Modifications for the ST-150-BJ-1
... isolated reference for the regulator IC j. First cut the trace bet ween C 2 -C 2* and the trim m er R 9 : this separates the pre regulator reference. T o preserve the short-circuit protection, add a 1N4004 diode (D 5) from point C (the C 2 -C 2* side of the cut trace) to the output. In the positiv ...
... isolated reference for the regulator IC j. First cut the trace bet ween C 2 -C 2* and the trim m er R 9 : this separates the pre regulator reference. T o preserve the short-circuit protection, add a 1N4004 diode (D 5) from point C (the C 2 -C 2* side of the cut trace) to the output. In the positiv ...
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.