Study paper on Lightning and surge protection in Telecom Networks
... devices can have their operation upset before hard failure occurs. The semiconductor junctions of electronic devices are particularly susceptible to progressive deterioration; few solid state devices can tolerate much more than twice their normal rating. Furthermore, data processing equipment can be ...
... devices can have their operation upset before hard failure occurs. The semiconductor junctions of electronic devices are particularly susceptible to progressive deterioration; few solid state devices can tolerate much more than twice their normal rating. Furthermore, data processing equipment can be ...
How to Minimize Touchscreen Electromagnetic Interference
... cell phone charger. Interference is coupled through the finger to the touchscreen, as shown in Figure 5. Small cell phone chargers typically have ac mains hot and neutral inputs but no earth connection. The charger is safety-isolated, so there is no dc connection between the mains input and the char ...
... cell phone charger. Interference is coupled through the finger to the touchscreen, as shown in Figure 5. Small cell phone chargers typically have ac mains hot and neutral inputs but no earth connection. The charger is safety-isolated, so there is no dc connection between the mains input and the char ...
digital transmission basic concepts unit 1
... Quantization Error Let us divide total peak to peak range of the message signal m(t) into M equal voltage intervals, each of magnitude S volts. At the center of each voltage interval we locate a quantization level m1,m2, ……mM. as shown in fig. 5.81a. The dashed level represents the instantane ...
... Quantization Error Let us divide total peak to peak range of the message signal m(t) into M equal voltage intervals, each of magnitude S volts. At the center of each voltage interval we locate a quantization level m1,m2, ……mM. as shown in fig. 5.81a. The dashed level represents the instantane ...
MAX5188/MAX5191 Dual, 8-Bit, 40MHz, Current/Voltage, Alternate-Phase Output DACs General Description
... converters (DACs) capable of operating with clock speeds up to 40MHz. Each of these dual converters consists of separate input and DAC registers, followed by a current-source array capable of generating up to 1.5mA full-scale output current (Figure 1). An integrated +1.2V voltage reference and contr ...
... converters (DACs) capable of operating with clock speeds up to 40MHz. Each of these dual converters consists of separate input and DAC registers, followed by a current-source array capable of generating up to 1.5mA full-scale output current (Figure 1). An integrated +1.2V voltage reference and contr ...
tree lightning protection Systems (part one)
... Once lightning contacts the earth, the charge spreads out from the point of contact in all directions. The current is greatest on or near the surface, called a “skin effect.” Step voltage is the difference in electrical potential between two points, such as a person’s feet (their ‘step’) along that ...
... Once lightning contacts the earth, the charge spreads out from the point of contact in all directions. The current is greatest on or near the surface, called a “skin effect.” Step voltage is the difference in electrical potential between two points, such as a person’s feet (their ‘step’) along that ...
Transient Voltage Protection for Stratix GX Devices
... Other conductive traces (mostly signal traces) form a looped area referenced to GND, in the same manner described above for the power. The changing magnetic field, generated by the current surge on the power (obeying Ampere’s Law), propagates and generates a voltage spike at the end of any signal tr ...
... Other conductive traces (mostly signal traces) form a looped area referenced to GND, in the same manner described above for the power. The changing magnetic field, generated by the current surge on the power (obeying Ampere’s Law), propagates and generates a voltage spike at the end of any signal tr ...
Ground Fault Protection on Ungrounded and High Resistance
... The contribution of surge capacitors applied to rotating machinery can be significant. The surge capacitors are connected line-to-ground but selected with rated voltage at least as high as the circuit line-to-line voltage. The positive, negative and zerosequence capacitance of the 3-phase surge capa ...
... The contribution of surge capacitors applied to rotating machinery can be significant. The surge capacitors are connected line-to-ground but selected with rated voltage at least as high as the circuit line-to-line voltage. The positive, negative and zerosequence capacitance of the 3-phase surge capa ...
High-Voltage Signal Conditioning for Low
... The designer must now carefully balance the relationship between the current limiting resistor R3, C1 and the input capacitance of the converter. Too much resistance will dampen the transient response of the converter; however, too little resistance will overdrive the INA137. The values shown are re ...
... The designer must now carefully balance the relationship between the current limiting resistor R3, C1 and the input capacitance of the converter. Too much resistance will dampen the transient response of the converter; however, too little resistance will overdrive the INA137. The values shown are re ...
FAN103 Primary-Side-Regulation PWM Controller (PWM-PSR) FAN103 — Primary-S ide-Regulat
... capacitor, CDD, through RSTART. When the VDD voltage reaches VDD-ON, the internal startup circuit is disabled, blocking ISTARTUP from flowing into the HV pin. Once the IC turns on, CDD is the only energy source to supply the IC consumption current before the PWM starts to switch. Thus, CDD must be l ...
... capacitor, CDD, through RSTART. When the VDD voltage reaches VDD-ON, the internal startup circuit is disabled, blocking ISTARTUP from flowing into the HV pin. Once the IC turns on, CDD is the only energy source to supply the IC consumption current before the PWM starts to switch. Thus, CDD must be l ...
Signal Conditioners User`s Guide
... CM007 4-20mA (powered) The powered 4-20mA signal conditioner works with two-wire 4-20mA transmitters that are powered by the current loop. This type of transmitter is very practical because the two-wire circuit provides both sensor power and signal return: being current-based, it offers very good im ...
... CM007 4-20mA (powered) The powered 4-20mA signal conditioner works with two-wire 4-20mA transmitters that are powered by the current loop. This type of transmitter is very practical because the two-wire circuit provides both sensor power and signal return: being current-based, it offers very good im ...
ADN4664 数据手册DataSheet 下载
... a terminating resistor, RT. This resistor is chosen to match the characteristic impedance of the medium, typically around 100 Ω. The differential voltage is detected by the receiver and converted back into a single-ended logic signal. When the noninverting receiver input, RINx+, is positive with res ...
... a terminating resistor, RT. This resistor is chosen to match the characteristic impedance of the medium, typically around 100 Ω. The differential voltage is detected by the receiver and converted back into a single-ended logic signal. When the noninverting receiver input, RINx+, is positive with res ...
When power interruptions happen.
... double dead-end can be used to change wire sizes or to segment a line section in order to evenly distribute line tension. If a double dead-end is not installed nearby and an overhead line conductor breaks, the weight and change in tension can break adjacent structures. If a double dead-end is insert ...
... double dead-end can be used to change wire sizes or to segment a line section in order to evenly distribute line tension. If a double dead-end is not installed nearby and an overhead line conductor breaks, the weight and change in tension can break adjacent structures. If a double dead-end is insert ...
LTC1757A-1/LTC1757A-2 - Single/Dual Band
... and ground at the side connected to the directional coupler. If the termination is placed at the LTC1757A RF pin, then the 68Ω resistor must be connected to VIN since the detector is referenced to VIN. Termination components should be placed adjacent to the LTC1757A. Power Ramp Profiles The external ...
... and ground at the side connected to the directional coupler. If the termination is placed at the LTC1757A RF pin, then the 68Ω resistor must be connected to VIN since the detector is referenced to VIN. Termination components should be placed adjacent to the LTC1757A. Power Ramp Profiles The external ...
CW25-TIM NS18-DS 07 26 March 2009
... overall system power consumption may be achieved by using an external supply. ...
... overall system power consumption may be achieved by using an external supply. ...
BATCH CONTROLLER D A TA SHEET F136 - BA TCH C
... Analog output signal The (0)4 - 20mA or 0 - 10V DC output signal is related to the batch process. For example, a 4mA will be generated when START has been pressed and this value will increase smootly to 18.7mA when the overrun correction closes the valve. The end value will be 20mA when the batch is ...
... Analog output signal The (0)4 - 20mA or 0 - 10V DC output signal is related to the batch process. For example, a 4mA will be generated when START has been pressed and this value will increase smootly to 18.7mA when the overrun correction closes the valve. The end value will be 20mA when the batch is ...
Modified Altec 1567A
... Unbalanced outputs: The unbalanced output Z on CH1-CH4 depends on fader setting (see Technical Report). Generally, it is too high to drive “line-level” unbalanced inputs of modern studio gear (which are about 10 KΩ), but can feed instrument-level inputs (i.e., guitar or bass amps). They can also fee ...
... Unbalanced outputs: The unbalanced output Z on CH1-CH4 depends on fader setting (see Technical Report). Generally, it is too high to drive “line-level” unbalanced inputs of modern studio gear (which are about 10 KΩ), but can feed instrument-level inputs (i.e., guitar or bass amps). They can also fee ...