摘要:
A method of regulating a motor includes monitoring an absolute voltage value across an anode and a cathode of a triode (122) via an analog switching circuit (222), the triode (122) being configured to facilitate power a motor (102), activating a gate (128) of the triode (122) via the circuit in response to the absolute voltage value being greater than a predetermined threshold, and deactivating the gate (128) of the triode (122) via the analog switching circuit (222) in response to the absolute voltage value being less than the predetermined threshold.
摘要:
Systems, methods, techniques and apparatuses of power switch control are disclosed. One exemplary embodiment is a power switch comprising a thyristor-based branch including a thyristor device; a FET-based branch coupled in parallel with the thyristor-based branch and including a FET device; and a controller. The controller is structured to turn on the FET device, turn on the thyristor device after turning on the FET device based on a thyristor voltage threshold, and update the thyristor voltage threshold based on a voltage measurement corresponding to the thyristor-based branch measured while the thyristor device is turned on.
摘要:
An apparatus and a method for controlling an isolated switch are disclosed. The apparatus and the method for controlling an isolated switch according to the present invention, configure a circuit so as to maintain a light emitting diode (LED) included in an isolated switch in an OFF state at normal times and control the LED in an ON state when an event occurs in an isolated switch such as a photo MOS relay to reduce power consumed for emitting the LED by decreasing a duration for which the LED is maintained in an emission state and improve durability of a system adopting the isolated switch by improving a life-span of the isolated switch.
摘要:
Each of a plurality of driver circuits includes a first 3-terminal switch element (T1-T6), a second 3-terminal switch element (Q1-Q6), and a 3-terminal light emitting element (L1-L6) driven by the first 3-terminal switch element (T1-T6). The first 3-terminal switch element (T1-T6) in a first circuit of adjacent driver circuits (C1+C2, C2+C3, C3+C4, C4+C5, C5+C6) is driven by one of first and second clocks (CK1, CK2) and the first 3-terminal switch element in a second circuit of the adjacent driver circuits is driven by the other of the first and second clocks. The second 3-terminal switch element in the first circuit supplies a signal to the second driver circuit, the signal representing an operational state of the first circuit. The second 3-terminal switch element in the first circuit includes a control electrode to which a third clock is supplied. The second 3-terminal switch element in the second circuit includes a control electrode to which a fourth clock is supplied.
摘要:
A contactless intellectual switch comprises a power supply, a signal sampling means, a controlling means and thyristor assembly and so on is disclosed. The on/off of a conventional switch is replaced with turning on/off of the thyristor assembly. The contactless intellectual switch can perform various determinations on short circuit, over load and time delay, soaking out and temperature protection and provide a series of signals for controlling turning on/off of the thyristor assembly and a cooling system. The electric power can be measured automatically and current, voltage and electrical power can be displayed alternatively. The contactless intellectual switch may be connected with other networks so as to release uninterrupt power supply, in particular, with a computer so as to realize the real time monitoring and controlling.
摘要:
Schaltungsandordnung zum Herabestzen der Freiwerdezeit eines Thyristors durch Anlegeneines negativen Abschalthilf-Impulses an den Hilfsemitter, der zwischen Emitter (1) und Steuerelektrode (5) des Thyristors liegt, zur Vermeidung unbeabsichtigten Zündens des Thyristors bei positivem Ueberschwingen der Abschalthilfe-Impulse. Es sind zwei getrennte Impulsquellen (10,11) vorgesehen, die zwischen Steuerelektrode (5) und Hilfsemitterelektrode (4) beziehungsweise zwischen Hilfsemitterelektrode (4) und Emitterelektrode (3) eingeschaltet sind. Ein Ueberschwingen der Abschalthilfe-Impulse ist damit unschädlich. Die Schaltanordnung ist vorzugsweise bei höherfrequent betriebenen Thyristoren anwendbar.