Resistivity of a Superconductor
... enough to avoid sample heating. Considering the 600 ohm source resistance of the oscillator, the current will be at most, I = V/R = 2 V/600 Ω ~ 3 mA. The fairly high oscillator frequency will ensure that significantly many sine wave cycles will be averaged in a reasonable amount of time. For example ...
... enough to avoid sample heating. Considering the 600 ohm source resistance of the oscillator, the current will be at most, I = V/R = 2 V/600 Ω ~ 3 mA. The fairly high oscillator frequency will ensure that significantly many sine wave cycles will be averaged in a reasonable amount of time. For example ...
Improving the Cascode`s Power Supply Rejection Ratio
... When the 6DJ8 is used in a Cascode circuit, with the same 9K plate resistor, allows 92% of the noise at its power supply connection to make to its output; the math: Ratio = (mu + 2) rp / [(mu + 2) rp + Ra] Ratio = (33 +2) 3,000 / [(mu + 2) 3000 + 9,000] Ratio = 105,000 / ...
... When the 6DJ8 is used in a Cascode circuit, with the same 9K plate resistor, allows 92% of the noise at its power supply connection to make to its output; the math: Ratio = (mu + 2) rp / [(mu + 2) rp + Ra] Ratio = (33 +2) 3,000 / [(mu + 2) 3000 + 9,000] Ratio = 105,000 / ...
1K/2K/3K Online UPS Uninterruptible Power Supply
... Caution - risk of electric shock. Even after the unit is disconnected from the mains (building wiring outlet), components inside the UPS system are still connected to the battery and electrically live and dangerous. Before carrying out any kind of service and/or maintenance, disconnect the batte ...
... Caution - risk of electric shock. Even after the unit is disconnected from the mains (building wiring outlet), components inside the UPS system are still connected to the battery and electrically live and dangerous. Before carrying out any kind of service and/or maintenance, disconnect the batte ...
4.5V to 18V Input Voltage, 3A/2A/2A Output Current Triple
... The TPS65261, TPS65261-1 features an automatic power sequence with connecting MODE pin to V7V and configuring EN1/2/3 pins. The device also features an open drain RESET signal to monitor power down. At light load, the TPS65261 automatically operates in pulse skipping mode (PSM) and the TPS65261-1 op ...
... The TPS65261, TPS65261-1 features an automatic power sequence with connecting MODE pin to V7V and configuring EN1/2/3 pins. The device also features an open drain RESET signal to monitor power down. At light load, the TPS65261 automatically operates in pulse skipping mode (PSM) and the TPS65261-1 op ...
MAX3209E ±15kV ESD-Protected, 12V, Dual RS-232 Serial Port General Description
... The MAX3209E features a 50µA low-power standby mode for compliance with system power-management requirements. During standby, while the device operates from the single +3V to +5.5V logic supply, one receiver on each port remains active, allowing automatic system wake-up when peripheral communication ...
... The MAX3209E features a 50µA low-power standby mode for compliance with system power-management requirements. During standby, while the device operates from the single +3V to +5.5V logic supply, one receiver on each port remains active, allowing automatic system wake-up when peripheral communication ...
Synthesis of Input-Rectifierless AC/DC Converters
... Integrating over a half mains cycle, we get the power processed by converter 1 during the positive mains cycle and the negative half mains cycle, respectively, as ...
... Integrating over a half mains cycle, we get the power processed by converter 1 during the positive mains cycle and the negative half mains cycle, respectively, as ...
JB Operators Manual
... The 400V interfaces are not protected by the surge arrestor and any instrument connected to a 400V port should have its own surge protection. 8. The JB measures and reports voltages and currents on all downlink interfaces. Isolation resistance (ground fault) is measured on all low voltage interfaces ...
... The 400V interfaces are not protected by the surge arrestor and any instrument connected to a 400V port should have its own surge protection. 8. The JB measures and reports voltages and currents on all downlink interfaces. Isolation resistance (ground fault) is measured on all low voltage interfaces ...
AN2349
... The network composed by the capacitor and resistor in series to the base of the power bipolar transistor T1 are chosen in order to fix the duty-cycle at level less than 50% in the max point of the main sinusoid and they determine the conduction time of the device, while the base-emitter resistor has ...
... The network composed by the capacitor and resistor in series to the base of the power bipolar transistor T1 are chosen in order to fix the duty-cycle at level less than 50% in the max point of the main sinusoid and they determine the conduction time of the device, while the base-emitter resistor has ...
datasheet - Texas Instruments
... The TPS7A4700 output voltages are userprogrammable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count. The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (u ...
... The TPS7A4700 output voltages are userprogrammable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count. The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (u ...
ADM3202 数据手册DataSheet 下载
... data transmission at rates well in excess of the EIA/RS-232E specifications. RS-232 voltage levels are maintained at data rates up to 460 kbps even under worst-case loading conditions. This allows high speed data links between two terminals and is suitable for the new generation ISDN modem standards ...
... data transmission at rates well in excess of the EIA/RS-232E specifications. RS-232 voltage levels are maintained at data rates up to 460 kbps even under worst-case loading conditions. This allows high speed data links between two terminals and is suitable for the new generation ISDN modem standards ...
S. Lim, J. Ranson, D.M. Otten and D.J. Perreault, Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage, IEEE Transactions on Power Electronics , Vol. 30, No. 2, pp. 805-816, Feb. 2015.
... and eight switches. The switches turn on and off with 50% duty ratio with dead time. Table II shows the on-state switches in each state and conversion mode, and Table III presents the circuit configuration with this switch operation, where the current source iint models the time-averaged currents dra ...
... and eight switches. The switches turn on and off with 50% duty ratio with dead time. Table II shows the on-state switches in each state and conversion mode, and Table III presents the circuit configuration with this switch operation, where the current source iint models the time-averaged currents dra ...
International Electrical Engineering Journal (IEEJ)
... MPF, and switched capacitor compensators are [2-4]. The active power filters (APF) can also be used for power factor correction and loss reduction [5, 6]. In this paper a low cost design based on SCCS family of devices developed by the First Author is validated through digital simulation using Matla ...
... MPF, and switched capacitor compensators are [2-4]. The active power filters (APF) can also be used for power factor correction and loss reduction [5, 6]. In this paper a low cost design based on SCCS family of devices developed by the First Author is validated through digital simulation using Matla ...
Schmitt trigger
In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.