A New Wave of CMOS Power Amplifier Innovations: Fusing Digital
... the time-varying envelope signal but only provides fixed voltage levels instead (Fig 9(b)). When the input amplitude is small, the DC-DC converter supplies a low VDD voltage (Region I), while a high VDD level is used for large input signal (Region II). To further reduce the cost and feature size, a ...
... the time-varying envelope signal but only provides fixed voltage levels instead (Fig 9(b)). When the input amplitude is small, the DC-DC converter supplies a low VDD voltage (Region I), while a high VDD level is used for large input signal (Region II). To further reduce the cost and feature size, a ...
solenoid catalogue
... When a solenoid is energized continuously, heating of the coil increases until a saturation level is reached which is equal to the ambient heat radiation. When a solenoid is operated in an intermittent (on-off) manner, the “on” time becomes critical if higher voltages (thus currents) are applied to ...
... When a solenoid is energized continuously, heating of the coil increases until a saturation level is reached which is equal to the ambient heat radiation. When a solenoid is operated in an intermittent (on-off) manner, the “on” time becomes critical if higher voltages (thus currents) are applied to ...
Modifying the Yaesu FT-847 External 22.625 MHz
... This document describes the modification of an FT-847 to allow an external 22.625 MHz Reference oscillator to be connected to the rig. So, why do this modification? Weak-signal experiments require a rig that is both stable and accurately on-frequency. The FT-847 derives its internal mixing frequenci ...
... This document describes the modification of an FT-847 to allow an external 22.625 MHz Reference oscillator to be connected to the rig. So, why do this modification? Weak-signal experiments require a rig that is both stable and accurately on-frequency. The FT-847 derives its internal mixing frequenci ...
BF961 N–Channel Dual Gate MOS-Fieldeffect Tetrode
... 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. ...
... 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. ...
LP358, LP2904 - Texas Instruments
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
... applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask ...
TPS777/8xx: Fast-Transient-Response 750
... current of 750 mA for the TPS77x33) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 750 mA). T ...
... current of 750 mA for the TPS77x33) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 750 mA). T ...
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 ...
LT3012 - 250mA, 4V to 80V Low Dropout
... logic with a pull-up resistor. The pull-up resistor is only required to supply the pull-up current of the open-collector gate, normally several microamperes. If unused, the SHDN pin must be tied to a logic high or to VIN. IN (Pins 10, 11)/(Pins 13,14): Input. Power is supplied to the device through ...
... logic with a pull-up resistor. The pull-up resistor is only required to supply the pull-up current of the open-collector gate, normally several microamperes. If unused, the SHDN pin must be tied to a logic high or to VIN. IN (Pins 10, 11)/(Pins 13,14): Input. Power is supplied to the device through ...
Note 2
... The LTC1149 series uses a constant off-time architecture with tOFF determined by an external timing capacitor CT. Each time the P-channel MOSFET switch turns on, the voltage on CT is reset to approximately 3.3V. During the off-time, CT is discharged by a current which is proportional to VOUT. The vo ...
... The LTC1149 series uses a constant off-time architecture with tOFF determined by an external timing capacitor CT. Each time the P-channel MOSFET switch turns on, the voltage on CT is reset to approximately 3.3V. During the off-time, CT is discharged by a current which is proportional to VOUT. The vo ...
PAM2307 Description Pin Assignments
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
ACTIONI/Q Q498 ® DC Powered DC Input Field Configurable
... for the hold control). A 25-point linearization function is available for the Channel 1 Analog input only. Note that all output math and process control functions require the C698 software. The field configurable input of the Q498 can be set via DIP switches. Voltage input ranges are: ±150mV, ±1.5V, ...
... for the hold control). A 25-point linearization function is available for the Channel 1 Analog input only. Note that all output math and process control functions require the C698 software. The field configurable input of the Q498 can be set via DIP switches. Voltage input ranges are: ±150mV, ±1.5V, ...
Power Electronics and Reliability in Renewable Energy
... renewable energy technologies [3]-[12]. It started in the 1980’es with a few tens of kW production power per unit to today with multi-MW size wind turbines that are being installed. It also means that wind power production in the beginning did not have any impact on the power system control but now ...
... renewable energy technologies [3]-[12]. It started in the 1980’es with a few tens of kW production power per unit to today with multi-MW size wind turbines that are being installed. It also means that wind power production in the beginning did not have any impact on the power system control but now ...
**web short PK2100 B
... The counters sense negative edges. The differential receiver input can be used as a digital input by attaching one side of it to the desired threshold voltage. It can be used as a true differential input for such devices as inductive pickups. An internal jumper can connect the signal CKA1 which is c ...
... The counters sense negative edges. The differential receiver input can be used as a digital input by attaching one side of it to the desired threshold voltage. It can be used as a true differential input for such devices as inductive pickups. An internal jumper can connect the signal CKA1 which is c ...
High Power Ku-band GaN MMIC and Internally Matched HEMTs for Satellite Communication
... power. On the other hand, they have a characteristic called soft compression, whereby the gain starts to fall with lower output power than the saturated output power. In the case where GaN HEMT devices are coupled together to make a multi-stage amplifier, the soft compression characteristics of each ...
... power. On the other hand, they have a characteristic called soft compression, whereby the gain starts to fall with lower output power than the saturated output power. In the case where GaN HEMT devices are coupled together to make a multi-stage amplifier, the soft compression characteristics of each ...
S280-75-46A
... The Type ME electronic control also uses the bias circuit shown in figure 22. In this circuit, two diodes produce about a -1.4 volt reference which is used to bias the timing plugs. Connected between the two diodes and the 6.8K resistor is a 17V + 1% precision zener diode. This zener diode is used a ...
... The Type ME electronic control also uses the bias circuit shown in figure 22. In this circuit, two diodes produce about a -1.4 volt reference which is used to bias the timing plugs. Connected between the two diodes and the 6.8K resistor is a 17V + 1% precision zener diode. This zener diode is used a ...
UNIT 4 BASIC CIRCUIT DESIGN CONCEPTS
... τr / τf = ßn / ßp • Raise time is slower by factor of 2.5 when both ‘n’ and ‘p’ are in same size • In order to achive symmetrical operation need to make Wp=2.5 Wn • The factors which affect rise-time and fall-time as follows: 1) τr and τf are proportional to 1/Vdd 2) τr and τf are proportional to CL ...
... τr / τf = ßn / ßp • Raise time is slower by factor of 2.5 when both ‘n’ and ‘p’ are in same size • In order to achive symmetrical operation need to make Wp=2.5 Wn • The factors which affect rise-time and fall-time as follows: 1) τr and τf are proportional to 1/Vdd 2) τr and τf are proportional to CL ...
STM1831
... The STM1831 has an open drain, active-low output which sinks current when the output is asserted. Connect a pull-up resistor from RST to any supply voltage up to 6 V (see Figure 4). Select a resistor value large enough to register a logic low, and small enough to register a logic high, while all of ...
... The STM1831 has an open drain, active-low output which sinks current when the output is asserted. Connect a pull-up resistor from RST to any supply voltage up to 6 V (see Figure 4). Select a resistor value large enough to register a logic low, and small enough to register a logic high, while all of ...
IF 1720 Revision 2
... of damage or debris. Put back cover in place on driver housing and start all (8) back cover screws hand-tight. Initially torque back cover screws to 40 In-lbs in sequence of A-B-C-D-E-F-G-H as shown in Figure 5. Next torque back cover screws up to 79 In-lbs again in the sequence of A-B-C-D-E-F-G-H. ...
... of damage or debris. Put back cover in place on driver housing and start all (8) back cover screws hand-tight. Initially torque back cover screws to 40 In-lbs in sequence of A-B-C-D-E-F-G-H as shown in Figure 5. Next torque back cover screws up to 79 In-lbs again in the sequence of A-B-C-D-E-F-G-H. ...
APPLICATION NOTE U-134
... has crossed zero volts. At this point the amount of current which is required by the programming signal exceeds the available current slew rate. When the input voltage is near zero there is very little voltage across the inductor when the switch is closed so the current cannot ramp up very quickly s ...
... has crossed zero volts. At this point the amount of current which is required by the programming signal exceeds the available current slew rate. When the input voltage is near zero there is very little voltage across the inductor when the switch is closed so the current cannot ramp up very quickly s ...
Evaluation Board User Guide UG-230
... circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentati ...
... circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentati ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.