AN10909 Low V transistors in medium power load switch applications
... for the design. They define the performance of especially TR1 where most power losses occur. The control switch TR2 typically is a general-purpose transistor like a BC847 or PMBT3904, and has to deliver currents in the range of a few up to 100 mA as base drive for TR1. Typical values for hFE are aro ...
... for the design. They define the performance of especially TR1 where most power losses occur. The control switch TR2 typically is a general-purpose transistor like a BC847 or PMBT3904, and has to deliver currents in the range of a few up to 100 mA as base drive for TR1. Typical values for hFE are aro ...
Electrical Machines - Questions and Answers
... Since overload relays are not designed to operate and clear the circuit in the event of a short-circuit. Circuit-breaker or fuse protection of sufficient breaking capacity to deal with any possible short-circuit that may occur must be provided. 4. What are the usual forms of overload relay in motor- ...
... Since overload relays are not designed to operate and clear the circuit in the event of a short-circuit. Circuit-breaker or fuse protection of sufficient breaking capacity to deal with any possible short-circuit that may occur must be provided. 4. What are the usual forms of overload relay in motor- ...
Safety Light Curtain 120V AC Interface - Allen
... user-definable application programs. keyboard mode (programming) ...
... user-definable application programs. keyboard mode (programming) ...
RF5565 2.4GHz TO 2.5GHz, 802.11b/g/n WiFi FRONT END MODULE Features
... The RF5565 integrates the matching networks and DC blocking capacitors for all RF ports. This greatly reduces the number of external components and layout area needed to implement this FEM. Typically only a total of four external components are required to achieve nominal performance. However, depen ...
... The RF5565 integrates the matching networks and DC blocking capacitors for all RF ports. This greatly reduces the number of external components and layout area needed to implement this FEM. Typically only a total of four external components are required to achieve nominal performance. However, depen ...
MAX1623 3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches General Description
... the IC and an LC output filter. The output voltage is the average of the AC voltage at the switching node (LX). The MAX1623 regulates the output voltage by changing the PMOS switch on-time relative to the constant offtime, thereby adjusting the duty cycle. The MAX1623 contains six major circuit bloc ...
... the IC and an LC output filter. The output voltage is the average of the AC voltage at the switching node (LX). The MAX1623 regulates the output voltage by changing the PMOS switch on-time relative to the constant offtime, thereby adjusting the duty cycle. The MAX1623 contains six major circuit bloc ...
USB-ERB08 - Measurement Computing
... The PWR LED turns on when 9 V power is supplied to the USB-ERB08. If the voltage supply is less than 6.0 V or more than 12.5 V, the PWR LED does not turn on. Do not connect external power to the POWER OUT connector The power connector labeled POWER OUT on the enclosure (PWR OUT on the board) is used ...
... The PWR LED turns on when 9 V power is supplied to the USB-ERB08. If the voltage supply is less than 6.0 V or more than 12.5 V, the PWR LED does not turn on. Do not connect external power to the POWER OUT connector The power connector labeled POWER OUT on the enclosure (PWR OUT on the board) is used ...
Keysight Technologies Understanding RF/Microwave Solid State
... microwave frequencies. Its resistance value varies from less than 1 Ω (ON) to more than 10 kΩ (OFF) depending on the amount of current flowing through it. As a currentcontrolled device, the resistance is determined only by the forward biased DC current. When the control current is switched on and of ...
... microwave frequencies. Its resistance value varies from less than 1 Ω (ON) to more than 10 kΩ (OFF) depending on the amount of current flowing through it. As a currentcontrolled device, the resistance is determined only by the forward biased DC current. When the control current is switched on and of ...
S260-75-1
... The time delay setting for preferred to alternate source transfer must be long enough to allow discrimination between permanent loss of voltage and temporary loss of voltage due to transient effects or reclosing intervals of backup protective reclosers or breakers. The timedelay required to override ...
... The time delay setting for preferred to alternate source transfer must be long enough to allow discrimination between permanent loss of voltage and temporary loss of voltage due to transient effects or reclosing intervals of backup protective reclosers or breakers. The timedelay required to override ...
Switch
In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another.The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.