6 results about "Thyristor" patented technology

The invention relates to a semiconductor lighting driving circuit which is compatible with a thyristor dimmer and a voltage input type dimmer. The semiconductor lighting driving circuit comprises a rectification filtering circuit, a power factor correction (PFC) circuit, a control circuit and a conversion circuit, wherein the rectification filtering circuit is used for converting an alternating current which comes from an alternating current power supply into a direct current; the PFC circuit is used for performing voltage reduction on the direct current; the control circuit is used for generating a pulse width modulation (PWM) control signal according to the direct current which is subjected to voltage reduction or an output voltage of the voltage input type dimmer; and the conversion circuit is used for supplying electric energy to a semiconductor lighting device according to the PWM control signal. The semiconductor lighting driving circuit is compatible with the thyristor dimmer and the voltage input type dimmer, can steadily operate in various kinds of dimming modes, and is high in generality. The semiconductor lighting driving circuit can independently operate, and the semiconductor lighting driving circuit and other circuit modules can conveniently form a product with high cost performance. Moreover, with the PFC circuit, the electromagnetic interference of the circuit can be remarkably reduced, so that the circuit operates more steadily and more reliably.

The invention relates to a serial capacitor operation control device and method for a single-phase permanent magnet synchronous generator. The device includes two orthogonal windings and a load; a capacitor C1, a capacitor C2 and a capacitor C3 connected with one of the orthogonal winding; a bidirectional thyristor T1, a bidirectional thyristor T2 and a bidirectional thyristor T3 connected with the capacitor C1, the capacitor C2 and the capacitor C3 correspondingly and used for controlling the capacitors to connect to circuits. The device also includes a voltage-current detection conditioningcircuit, an A/D conversion circuit, a single-chip microprocessor control circuit, a thyristor triggering control circuit, a zero cross detection circuit, a Hall voltage sensor, a Hall current sensor,a linear optical coupler and a phase inverter. By adopting the technical scheme provided by the invention, defects of generator vibration and severe voltage waveform distortion due to generation of pulse vibration magnetomotive force of the single-phase motor and generator vibration and low power generation efficiency caused by magnetomotive force having ovality difference generated in an electrification process of the two-phase armature windings can be made up.

A thyristor is disclosed, which comprises the following steps of manufacturing a thyristor: Ion in semiconductor substrate for P-Ions and N-Ion implantation, fabrication of P-trap, N-trap; S2, the junction of P-well and N-well is advanced by the first heating treatment; S3, then P-Ion implantation to fabricate P trap; S4, the second heating treatment is used to advance the P-well junction; S5, implanting N + ions and P + ions into two P traps and one N trap; S6, the third heating treatment activates the N + ion and the P + ion; 7, deep trench isolation is carry out on that semiconductor substrate. As such, that thyristor has a long service life, a simple manufacture method and a high manufacturing efficiency.