Fixing Up Nice Old Radios
... Turn Rx to CW/SSB or BFO on. Check voltages You should hear whistle when tuned to a carrier. (Check oscillation at G1 or P of tube with scope) (Check BFO frequency with counter or listen for harmonic. Readjust frequency.) (Check BFO coupling capacitor.) Automatic Volume Control Is S-meter working pr ...
... Turn Rx to CW/SSB or BFO on. Check voltages You should hear whistle when tuned to a carrier. (Check oscillation at G1 or P of tube with scope) (Check BFO frequency with counter or listen for harmonic. Readjust frequency.) (Check BFO coupling capacitor.) Automatic Volume Control Is S-meter working pr ...
RF3230 QUAD-BAND GMSK TXM, 2 UMTS SWITCH PORTS Features
... Product Description The RF3230 is a high-power, high-efficiency transmit module with integrated power control, an integrated pHEMT front end switch, and harmonic filtering functionality. This device is self-contained with 50 input and output terminals and no external matching circuits required. The ...
... Product Description The RF3230 is a high-power, high-efficiency transmit module with integrated power control, an integrated pHEMT front end switch, and harmonic filtering functionality. This device is self-contained with 50 input and output terminals and no external matching circuits required. The ...
Fluke 752A Reference Divider Specifications
... Before each use, the Fluke 752A is easily calibrated with only a stable source and a null detector. The entire procedure takes only five minutes and does not require external standards. ...
... Before each use, the Fluke 752A is easily calibrated with only a stable source and a null detector. The entire procedure takes only five minutes and does not require external standards. ...
Traction drive control
... [2] T. Oka et al "Over 10 a operation with switching characteristics of 1.2 kV-class vertical GaN trench MOSFETs on a bulk GaN substrate," 28th International Symposium on Power Semiconductor Devices and ICs (ISPSD), Prague, 2016. [3] H. Kawarada et al., "Diamond MOSFETs using 2D hole gas with 1700V ...
... [2] T. Oka et al "Over 10 a operation with switching characteristics of 1.2 kV-class vertical GaN trench MOSFETs on a bulk GaN substrate," 28th International Symposium on Power Semiconductor Devices and ICs (ISPSD), Prague, 2016. [3] H. Kawarada et al., "Diamond MOSFETs using 2D hole gas with 1700V ...
The Rail Splitter Precision Virtual Ground
... Storage temperature range, Tstg (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Lead temperature 1,6 mm (1/16 in) from case for 10 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses b ...
... Storage temperature range, Tstg (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Lead temperature 1,6 mm (1/16 in) from case for 10 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses b ...
Fluke 752A Reference Divider Specifications
... Before each use, the Fluke 752A is easily calibrated with only a stable source and a null detector. The entire procedure takes only five minutes and does not require external standards. ...
... Before each use, the Fluke 752A is easily calibrated with only a stable source and a null detector. The entire procedure takes only five minutes and does not require external standards. ...
MAX1748/MAX8726 Triple-Output TFT-LCD DC-DC Converters General Description
... proprietary regulation algorithm minimizes output ripple, as well as capacitor sizes for both charge pumps. For both the MAX1748 and MAX8726, the supply sequence is VMAIN first, VNEG next, and finally VPOS. The MAX1748 soft-starts each supply as soon as the previous supply finishes. The MAX8726 adds ...
... proprietary regulation algorithm minimizes output ripple, as well as capacitor sizes for both charge pumps. For both the MAX1748 and MAX8726, the supply sequence is VMAIN first, VNEG next, and finally VPOS. The MAX1748 soft-starts each supply as soon as the previous supply finishes. The MAX8726 adds ...
Advances in Natural and Applied Sciences
... transforms the model into a reduced-order linear one with an autonomous dynamical part. Then a linear state feedback stabilizing controller is designed for the reduced-order linear power system model using optimal control theory which enhances the stability of the entire system. The states of the fe ...
... transforms the model into a reduced-order linear one with an autonomous dynamical part. Then a linear state feedback stabilizing controller is designed for the reduced-order linear power system model using optimal control theory which enhances the stability of the entire system. The states of the fe ...
laboratory works semiconductor electronics
... 1. Assemble the circuit accordingly the wiring diagram by pushing the component leads to the breadboard clips. Keep the jumper wires on the board flat, so that the board does not look cluttered. 2. Provide the link-up of the breadboard with the board of a studied device and the measuring devices usi ...
... 1. Assemble the circuit accordingly the wiring diagram by pushing the component leads to the breadboard clips. Keep the jumper wires on the board flat, so that the board does not look cluttered. 2. Provide the link-up of the breadboard with the board of a studied device and the measuring devices usi ...
LTC6900 - Low Power, 1kHz to 20MHz Resistor
... the DIV input (Pin 4). Tie DIV to GND or drive it below 0.5V to select ÷1. This is the highest frequency range, with the master output frequency passed directly to OUT. The DIV pin may be floated or driven to midsupply to select ÷10, the intermediate frequency range. The lowest frequency range, ÷100, ...
... the DIV input (Pin 4). Tie DIV to GND or drive it below 0.5V to select ÷1. This is the highest frequency range, with the master output frequency passed directly to OUT. The DIV pin may be floated or driven to midsupply to select ÷10, the intermediate frequency range. The lowest frequency range, ÷100, ...
Transformers and transmission
... As a final test of the transformer, Joan increases the load on the secondary side of the transformer. Suddenly, it stops working. She suspects that the fuse in the primary circuit has blown and intends to replace it. In order to replace the fuse as safely as possible, which of the following is the b ...
... As a final test of the transformer, Joan increases the load on the secondary side of the transformer. Suddenly, it stops working. She suspects that the fuse in the primary circuit has blown and intends to replace it. In order to replace the fuse as safely as possible, which of the following is the b ...
LM392 - Texas Instruments
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
... TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI ...
INDIANA UNIVERSITY - PURDUE UNIVERSITY FORT WAYNE DEPARTMENT OF ENGINEERING
... motor, but the motor will also transfer energy back to the battery. ...
... motor, but the motor will also transfer energy back to the battery. ...
N-Channel 700-V (DS) MOSFET
... Analog Power (APL) reserves the right to make changes without further notice to any products herein. APL makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does APL assume any liability arising out of the application or use of any ...
... Analog Power (APL) reserves the right to make changes without further notice to any products herein. APL makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does APL assume any liability arising out of the application or use of any ...
ZXTN25020DZ 20V NPN high gain transistor in SOT89 Summary Description
... Semiconductor devices are susceptible to damage by ESD. Suitable precautions should be taken when handling and transporting devices. The possible damage to devices depends on the circumstances of the handling and transporting, and the nature of the device. The extent of damage can vary from immediat ...
... Semiconductor devices are susceptible to damage by ESD. Suitable precautions should be taken when handling and transporting devices. The possible damage to devices depends on the circumstances of the handling and transporting, and the nature of the device. The extent of damage can vary from immediat ...
final project report ee3390 electronic circuits design lab power inverter
... With the push in the past ten years to improve methods of energy generation, there has been an increasing need to optimize energy management. Our project was to create a DC to AC load-balanced inverter. The function would be to take in a DC voltage input, something like a battery or a solar cell, an ...
... With the push in the past ten years to improve methods of energy generation, there has been an increasing need to optimize energy management. Our project was to create a DC to AC load-balanced inverter. The function would be to take in a DC voltage input, something like a battery or a solar cell, an ...
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.