Abstract: A random access memory, including a write transistor with a gate electrically connected to a write word line and a drain electrically connected to a write bit line, a first read transistor and a second read transistor with gates electrically connected to a source of the write transistor to form a storage node, drains electrically connected to a read bit line and a common source electrically connected to a read word line so that the first read transistor and a second read transistor are in parallel connection, and a capacitor electrically connected to the storage node.

Abstract: A method of enhancing generation efficiency of patterned optical coating is disclosed. When an exposure and development process is performed after a photoresist process on the silicon wafer, a dummy pattern is formed on a scribe line around a chip as a sacrificial layer. After an optical coating process is completed, the dummy pattern from the photoresist to be removed can be selected as the starting point of a photoresist lift-off process, such that the photoresist removal can be more efficient and accurate, and the generation efficiency of patterned optical coating is enhanced.

Abstract: A multi-functional hybrid filter comprises a transparent substrate having a hybrid light filtering portion and an infrared light filtering portion; wherein, said hybrid light filtering portion is constructed by an infrared light absorbing material layer and a reflective interference type infrared cut filtering layer (IRCF) formed on the surface of said transparent substrate.

Abstract: A switch controller for switching power supply is coupled to an auxiliary winding of the switching power supply through a detecting resistor. The switch controller provides a detecting current passing through the detecting resistor for keeping the voltage level of a detecting signal transmitted by the detecting resistor higher than a predetermined voltage. In this way, the switch controller can avoid the latch-up phenomenon caused by receiving the detecting signal of the negative voltage level. In addition, the switch controller can detect the magnitude of an input voltage of the switching power supply by means of the detecting current, and accordingly control the operation of the switching power supply.

Abstract: A control apparatus and a control method for a power factor correction power converter are provided. The control apparatus is configured to reduce the variation rate of a reference signal with a rising portion and a falling portion. When the primary winding almost completely releases the stored energy, and the falling portion of the reference signal reaches a determined condition, the control apparatus turns on a switch for increasing the stored energy of the primary winding.

Abstract: A high-voltage device provides a constant current drained from a high voltage source to charge a filter capacitor, where a voltage level of the higher voltage source is higher than 90 volts. When the operation voltage of the filter capacitor exceeds a first predetermined value, the charging of the filter capacitor by the constant current is stopped. A feedback loop is then used to maintain the operating voltage at substantially a second predetermined value lower than the first one.

Abstract: A switch controller for switching power supply is coupled to an auxiliary winding of the switching power supply through a detecting resistor. The switch controller provides a detecting current passing through the detecting resistor for keeping the voltage level of a detecting signal transmitted by the detecting resistor higher than a predetermined voltage. In this way, the switch controller can avoid the latch-up phenomenon caused by receiving the detecting signal of the negative voltage level. In addition, the switch controller can detect the magnitude of an input voltage of the switching power supply by means of the detecting current, and accordingly control the operation of the switching power supply.

Abstract: Disclosed is a switching converter without an auxiliary winding. The switching converter has a transformer, a switching transistor, a coupling circuit and a regulating circuit. The transformer has a primary winding and a secondary winding, and is for transforming an input voltage into an output voltage; a first end of the switching transistor is coupled to the primary winding of the transformer, and the switching transistor is for controlling an operation of the transformer according to a control signal; the coupling circuit is for coupling a signal at the first end of the switching transistor to generate a coupled signal; and the regulating circuit is for detecting the coupled signal to generate the control signal according to the detecting result.

Abstract: An apparatus and a method for detecting zero-voltage region detection are provided. The apparatus for zero-voltage region detection is configured to detect whether an input voltage approaches a zero voltage through an auxiliary winding, and to detect whether a primary winding almost completely releases the stored energy through the auxiliary winding.

Abstract: A control apparatus and a control method for a power factor correction power converter are provided. The control apparatus is configured to reduce the variation rate of a reference signal with a rising portion and a falling portion. When the primary winding almost completely releases the stored energy, and the falling portion of the reference signal reaches a determined condition, the control apparatus turns on a switch for increasing the stored energy of the primary winding.

Abstract: Disclosed is a switching converter without an auxiliary winding. The switching converter has a transformer, a switching transistor, a coupling circuit and a regulating circuit. The transformer has a primary winding and a secondary winding, and is for transforming an input voltage into an output voltage; a first end of the switching transistor is coupled to the primary winding of the transformer, and the switching transistor is for controlling an operation of the transformer according to a control signal; the coupling circuit is for coupling a signal at the first end of the switching transistor to generate a coupled signal; and the regulating circuit is for detecting the coupled signal to generate the control signal according to the detecting result.

Abstract: A bandgap reference voltage circuit is provided, in which an additional resistor as well as a transistor is utilized to prevent the source-drain voltage of a metal oxide semiconductor field effect transistor electrically connected to an output terminal of the bandgap reference voltage circuit from falling into the triode region. Through the provided bandgap reference voltage circuit, the temperature compensation effect is able to be normally executed, so as to supply a stable bandgap reference voltage.

Abstract: A bandgap reference voltage circuit is provided, in which an additional resistor as well as a transistor is utilized to prevent the source-drain voltage of a metal oxide semiconductor field effect transistor electrically connected to an output terminal of the bandgap reference voltage circuit from falling into the triode region. Through the provided bandgap reference voltage circuit, the temperature compensation effect is able to be normally executed, so as to supply a stable bandgap reference voltage.