a 4-Channel, 64-Position Digital Potentiometer AD5203
... shutdown state. When shutdown is returned to logic-high the previous latch settings put the wiper in the same resistance setting prior to shutdown. The AD5203 is available in a narrow body P-DIP-24, the 24-lead surface mount package, and the compact 1.1 mm thin TSSOP-24 package. All parts are guaran ...
... shutdown state. When shutdown is returned to logic-high the previous latch settings put the wiper in the same resistance setting prior to shutdown. The AD5203 is available in a narrow body P-DIP-24, the 24-lead surface mount package, and the compact 1.1 mm thin TSSOP-24 package. All parts are guaran ...
Optimizing 1200V IGBT Modules for High Frequency Applications
... new device was reduced to about 25% of the standard module by adjusting the minority carrier lifetime. Unfortunately, one side effect of the carrier lifetime adjustment is increased saturation voltage which causes larger static losses. In addition, the free wheeling diode used in these devices was o ...
... new device was reduced to about 25% of the standard module by adjusting the minority carrier lifetime. Unfortunately, one side effect of the carrier lifetime adjustment is increased saturation voltage which causes larger static losses. In addition, the free wheeling diode used in these devices was o ...
Digital dimmable ballasts for fluorescent lamps ECO
... Electronic devices can be damaged by high voltage. This has to be considered during the routine testing of the luminaires in production. According to IEC 60598-1 Annex Q (informative only!) or ENEC 303-Annex A, each luminaire should be submitted to an isolation test with 500 V DC for 1 second. This ...
... Electronic devices can be damaged by high voltage. This has to be considered during the routine testing of the luminaires in production. According to IEC 60598-1 Annex Q (informative only!) or ENEC 303-Annex A, each luminaire should be submitted to an isolation test with 500 V DC for 1 second. This ...
BDTIC www.BDTIC.com/infineon Wireless Components ASK/FSK Transmitter 868/433 MHz
... (VCO), an asynchronous divider chain, a phase detector, a charge pump and a loop filter. It is fully implemented on chip. The tuning circuit of the VCO consisting of spiral inductors and varactor diodes is on chip, too. Therefore no additional external components are necessary. The nominal center fr ...
... (VCO), an asynchronous divider chain, a phase detector, a charge pump and a loop filter. It is fully implemented on chip. The tuning circuit of the VCO consisting of spiral inductors and varactor diodes is on chip, too. Therefore no additional external components are necessary. The nominal center fr ...
AC/DC Power Conversion System Using 3/9 Multiphase
... transformer is often required in aerospace, railway and automobile applications. Keywords: Multiphase transformer, three phase power lines. ...
... transformer is often required in aerospace, railway and automobile applications. Keywords: Multiphase transformer, three phase power lines. ...
MAX8744A/MAX8745A High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
... large input-to-output differentials and high switching-frequency settings, the required on-time may be too short to maintain the regulation specifications. Under these conditions, a lower operating frequency must be selected. The minimum on-time must be greater than 150ns, regardless of the selected ...
... large input-to-output differentials and high switching-frequency settings, the required on-time may be too short to maintain the regulation specifications. Under these conditions, a lower operating frequency must be selected. The minimum on-time must be greater than 150ns, regardless of the selected ...
J.M. Rivas, O. Leitermann, Y. Han, and D.J. Perreault, “A Very High Frequency dc-dc Converter Based on a Class Phi-2 Resonant Inverter,” IEEE Transactions on Power Electronics , Vol. 26, No. 10, pp. 2980-2992, Oct. 2011.
... switches with their control ports referenced to constant potentials are often preferred. Likewise, it is often preferable to design inverters using only one semiconductor switch because of the difficulty of accurately commutating among multiple devices in this frequency range. Furthermore, switching ...
... switches with their control ports referenced to constant potentials are often preferred. Likewise, it is often preferable to design inverters using only one semiconductor switch because of the difficulty of accurately commutating among multiple devices in this frequency range. Furthermore, switching ...
Abstract-Voltage stability is the ability of a power system to
... troubles are now also a source of concern in highly developed networks as a result of heavier loading. Voltage stability concerned with the ability of a power system to maintain acceptable voltages at all buses in the system under normal conditions and after being subjected to a disturbance. A power ...
... troubles are now also a source of concern in highly developed networks as a result of heavier loading. Voltage stability concerned with the ability of a power system to maintain acceptable voltages at all buses in the system under normal conditions and after being subjected to a disturbance. A power ...
TLC272
... In general, many features associated with bipolar technology are available on LinCMOS operational amplifiers without the power penalties of bipolar technology. General applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering are easily ...
... In general, many features associated with bipolar technology are available on LinCMOS operational amplifiers without the power penalties of bipolar technology. General applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering are easily ...
partial discharge test with surge voltage in electric motors
... (Cair). This is illustrated in the middle part of the Figure 2. This is a place, where partial discharge occurs. The consequence of this partial discharge is a slow but continuous weakening of functional parts of the insulation system. The permanent partial discharges will lead to continuous erosion ...
... (Cair). This is illustrated in the middle part of the Figure 2. This is a place, where partial discharge occurs. The consequence of this partial discharge is a slow but continuous weakening of functional parts of the insulation system. The permanent partial discharges will lead to continuous erosion ...
FXLP4555MPX Datasheet
... to translate the voltages between a SIM card and an external baseband. A built-in LDO-type DC-DC converter allows the FXLP4555 to drive 1.8V and 3.0V SIM cards. The device fulfills the ISO7816-3 smart-card interface standard as well as GSM 11.11 (11.12 and 11.18) and 3G mobile requirements (IMT-2000 ...
... to translate the voltages between a SIM card and an external baseband. A built-in LDO-type DC-DC converter allows the FXLP4555 to drive 1.8V and 3.0V SIM cards. The device fulfills the ISO7816-3 smart-card interface standard as well as GSM 11.11 (11.12 and 11.18) and 3G mobile requirements (IMT-2000 ...
Current Electricity guide
... 60. This is stated in Ohm’s Law, which says that current is equal to voltage divided by resistance. 61. Let’s take an example. In this circuit the voltmeter reads about .5 volts... 62. ...and the ohmmeter reads 3.5 ohms. 63. When plugged into the formula, where .5 volts are divided by 3.5 ohms, we g ...
... 60. This is stated in Ohm’s Law, which says that current is equal to voltage divided by resistance. 61. Let’s take an example. In this circuit the voltmeter reads about .5 volts... 62. ...and the ohmmeter reads 3.5 ohms. 63. When plugged into the formula, where .5 volts are divided by 3.5 ohms, we g ...
DC-DC Power Converters
... interchanged. This converter produces an output voltage V that is greater in magnitude than the input voltage Vg. Its conversion ratio is M(D) = 1/(1 – D). In the buck-boost converter, the switch alternately connects the inductor across the power input and output voltages. This converter inverts the ...
... interchanged. This converter produces an output voltage V that is greater in magnitude than the input voltage Vg. Its conversion ratio is M(D) = 1/(1 – D). In the buck-boost converter, the switch alternately connects the inductor across the power input and output voltages. This converter inverts the ...
Algebraic Foundation of Self Adjusting Switched Capacitors
... Special attention was paid to SCC topologies of binary resolution. Namely, SCC systems that can be configured to have a no-load input to output voltage ratio that is equal to any binary number for the given number of bits. To this end we defined a new number system and show how these numbers can be ...
... Special attention was paid to SCC topologies of binary resolution. Namely, SCC systems that can be configured to have a no-load input to output voltage ratio that is equal to any binary number for the given number of bits. To this end we defined a new number system and show how these numbers can be ...
Zilano Lost Deleted Posts
... parallel to play safe. if one fails other will work and not cause any malfunction. i use L/4 primary and L/4 AND L/4 (SPLIT COILS=L/2) and dont use earth. yes its portable i use ferrite trafo compact and small footprint. i have used on electric vehicle too. Oct. 15, 2011 Zilano an invertor does not ...
... parallel to play safe. if one fails other will work and not cause any malfunction. i use L/4 primary and L/4 AND L/4 (SPLIT COILS=L/2) and dont use earth. yes its portable i use ferrite trafo compact and small footprint. i have used on electric vehicle too. Oct. 15, 2011 Zilano an invertor does not ...
BDTIC www.BDTIC.com/infineon Wireless Components ASK/FSK Transmitter 868/433 MHz
... The Phase Locked Loop synthesizer consists of a Voltage Controlled Oscillator (VCO), an asynchronous divider chain, a phase detector, a charge pump and a loop filter. It is fully implemented on chip. The tuning circuit of the VCO consisting of spiral inductors and varactor diodes is on chip, too. Th ...
... The Phase Locked Loop synthesizer consists of a Voltage Controlled Oscillator (VCO), an asynchronous divider chain, a phase detector, a charge pump and a loop filter. It is fully implemented on chip. The tuning circuit of the VCO consisting of spiral inductors and varactor diodes is on chip, too. Th ...
ADS5410 数据资料 dataSheet 下载
... THS3001, the OPA687, or the OPA690 that can be selected depending on the application. Rin and Cin can be placed to isolate the source from the switching inputs of the ADC and to implement a low pass RC filter to limit the input noise in the ADC. Although not needed, it is recommended to lay out the ...
... THS3001, the OPA687, or the OPA690 that can be selected depending on the application. Rin and Cin can be placed to isolate the source from the switching inputs of the ADC and to implement a low pass RC filter to limit the input noise in the ADC. Although not needed, it is recommended to lay out the ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.