CP0605
... The samples were tested in mineral oil meeting ASTM D3487-88 (1993). The samples were each energized at KR times the duty cycle voltage (KR= 1), for the duration of the time needed to allow 20 impulses. Each sample was impulsed with a 5kA crest surge of 8X 20 μs wave shape. The impulse occurred at a ...
... The samples were tested in mineral oil meeting ASTM D3487-88 (1993). The samples were each energized at KR times the duty cycle voltage (KR= 1), for the duration of the time needed to allow 20 impulses. Each sample was impulsed with a 5kA crest surge of 8X 20 μs wave shape. The impulse occurred at a ...
Low cost sinusoidal control of BLDC motors with Hall sensors using
... Hence a cost effective voltage foldback current limit control is implemented that fits very well with the ST7FMC architecture. The control block diagram is shown in Figure 6. ST7FMC has an on-chip opamp and a comparator. This opamp promotes the use of a low value shunt resistor whose weak output can ...
... Hence a cost effective voltage foldback current limit control is implemented that fits very well with the ST7FMC architecture. The control block diagram is shown in Figure 6. ST7FMC has an on-chip opamp and a comparator. This opamp promotes the use of a low value shunt resistor whose weak output can ...
EMI4183MU 数据资料DataSheet下载
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
BDTIC www.BDTIC.com/infineon Phase Cut Dimmable Isolated Flyback Converter for LED Retrofit Bulb with
... circuitry formed by R13, C6, D1, and R14. C6, together with D1 and the auxiliary winding of the flyback transformer will produce a negative voltage which is proportional to the rectified input voltage. With choosing proper value of R13, the peak voltage level at the base of Q2, and thus VR pin’s vol ...
... circuitry formed by R13, C6, D1, and R14. C6, together with D1 and the auxiliary winding of the flyback transformer will produce a negative voltage which is proportional to the rectified input voltage. With choosing proper value of R13, the peak voltage level at the base of Q2, and thus VR pin’s vol ...
Lab #11 Diodes - Northern Arizona University
... slope is very steep and the diode acts like a constant voltage source with voltage Vturnon. For voltages less than Vturnon, the diode acts like an open circuit. ...
... slope is very steep and the diode acts like a constant voltage source with voltage Vturnon. For voltages less than Vturnon, the diode acts like an open circuit. ...
Transformer Protection
... • As primary winding is delta, earth faults on the HV side are not seen by the generator earth fault relays • Instantaneous and time delayed relays could be used ...
... • As primary winding is delta, earth faults on the HV side are not seen by the generator earth fault relays • Instantaneous and time delayed relays could be used ...
MAX1682/MAX1683 Switched-Capacitor Voltage Doublers General Description ____________________________Features
... functions, such as driving the switches, oscillator, etc. These losses are affected by operating conditions such as input voltage, temperature, and frequency. The next two losses are associated with the voltage converter circuit’s output resistance. Switch losses occur because of the on-resistance o ...
... functions, such as driving the switches, oscillator, etc. These losses are affected by operating conditions such as input voltage, temperature, and frequency. The next two losses are associated with the voltage converter circuit’s output resistance. Switch losses occur because of the on-resistance o ...
EUP8020X Dual Source AC/USB Li-Ion/Polymer Charger IC for Portable Applications
... normally one from a USB port and another one from AC-adaptor. The EUP8020X automatically selects the USB-Port or the AC-adapter as the power source for the system. In the USB configuration, the host can select from the two preset charge rates of 100 mA and 500 mA. In the AC−adapter configuration an ...
... normally one from a USB port and another one from AC-adaptor. The EUP8020X automatically selects the USB-Port or the AC-adapter as the power source for the system. In the USB configuration, the host can select from the two preset charge rates of 100 mA and 500 mA. In the AC−adapter configuration an ...
3.3V 5V ±12V housekeeping IC
... The Under Voltage Protection Circuit is made of comparators with internal voltage thresholds which do not require any external components for proper operation. The outputs of these comparators are ORed, and blanked by an internal delay circuitry (Power Up Blanking - Tuv) which can be adjusted with a ...
... The Under Voltage Protection Circuit is made of comparators with internal voltage thresholds which do not require any external components for proper operation. The outputs of these comparators are ORed, and blanked by an internal delay circuitry (Power Up Blanking - Tuv) which can be adjusted with a ...
Stability Investigation using SPICE of BUCK DC-DC Converter
... converters are voltage mode control (VMC), peak current mode control (CMC) and average current mode control (ACMC). Their advantages and disadvantages are systematically summarized in [1,2,3]: Voltage Mode Control: The advantages are: stable modulation – less sensitive to noise, single feedback path ...
... converters are voltage mode control (VMC), peak current mode control (CMC) and average current mode control (ACMC). Their advantages and disadvantages are systematically summarized in [1,2,3]: Voltage Mode Control: The advantages are: stable modulation – less sensitive to noise, single feedback path ...
EXPERIMENT 3 Resistors in Series and in Parallel
... fact, Ohm's law applies not only to a single resistor, but also to a part or the whole circuit network, as long as it is non active (no power supplies in that part of the circuit) and linear (no non-linear device in the circuit). For the example shown in Fig.(1), The battery is supplying a device co ...
... fact, Ohm's law applies not only to a single resistor, but also to a part or the whole circuit network, as long as it is non active (no power supplies in that part of the circuit) and linear (no non-linear device in the circuit). For the example shown in Fig.(1), The battery is supplying a device co ...
Proposed Revisions to Draft of TIA-968-B
... signal level control shall provide not exceed the programmed levels given in Table 4.5 within +/1 dB. The voltages impressed on resistor Rp by the data equipment shall be such as not to cause power dissipation in Rp in excess of 50 milliwatts. The circuit shown below was used in calculating values o ...
... signal level control shall provide not exceed the programmed levels given in Table 4.5 within +/1 dB. The voltages impressed on resistor Rp by the data equipment shall be such as not to cause power dissipation in Rp in excess of 50 milliwatts. The circuit shown below was used in calculating values o ...
SBF5089Z 数据资料DataSheet下载
... responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change comp ...
... responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change comp ...
Fuse Facts and Fuse Selection Guide
... For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25°C ambient. For additional details, see RERATING in the previous section and AMBIENT TEMPERATURE below. ...
... For example, a fuse with a current rating of 10A is not usually recommended for operation at more than 7.5A in a 25°C ambient. For additional details, see RERATING in the previous section and AMBIENT TEMPERATURE below. ...
Current source
A current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it.A current source is the dual of a voltage source. The term constant-current 'sink' is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source, driving a resistor load. There are two types - an independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.