Abstract: Embodiments of the present disclosure disclose a multi-output high-voltage power supply including a channel selection circuit (103) including a plurality of switches; and a high-voltage power supply module (101) connected to the channel selection circuit (103), wherein the high-voltage power supply module (101) includes a fine adjusting power supply component (110) and a plurality of coarse adjusting power supply components (120-1 to 120-N) connected in series, wherein one high-voltage output terminal of the high-voltage power supply module (101) is connected to a common terminal of the channel selection circuit (103), and the other high-voltage output terminal of the high-voltage power supply module (101) is grounded through a current sampling resistor.

Abstract: The present disclosure provides an electronic component, including, a coil, and a circuit portion having a grounding terminal and a hot terminal and connected to the coil, wherein the grounding terminal of the circuit portion is connected to one end side of the coil, and the hot terminal of the circuit portion is connected to the other end side of the coil, thereby integrating the circuit portion with the coil.

Abstract: A solid-state lighting system includes a light-emitting device connected in series with a variable dim setting resistor, an adjustable regulator, and a current sensor disposed in a feedback loop between an adjust input of the adjustable regulator and the variable dim setting resistor. The voltage dropped across the variable dim setting resistor is forced to remain constant irrespective of the resistance setting of the dim setting resistor. The current sensor measures or senses the current flowing through the variable dim setting resistor and causes the adjustable regulator to adjust its output voltage and the forward voltage drop across the light-emitting device so that the current flowing through the light-emitting device matches the current set by the variable dim setting resistor. Controlling the current in this manner allows dimming to be performed over an extremely wide dimming range, to very low light levels, and without producing light flicker at any dim level.

Abstract: A light-emitting diode (LED) driving circuit includes a power factor correction (PFC) circuit and a driving controller. The PFC circuit controls a power factor of the LED driving circuit. The LED driving circuit includes an inductor, a switch, a current detection circuit, and a time detection circuit. The inductor senses an inductor current and provide energy to at least one LED. The switch connected to the inductor is conducted according to a driving signal. The current detection circuit connected to the switch detects inductor current information. The time detection circuit connected to the switch detects an energy discharging time during which the inductor current decrease from a peak value to zero. The driving controller connected to the switch, the current detection circuit, and the time detection circuit outputs the driving signal to the switch according to the voltage level and the energy discharging time.

Abstract: An AD converter includes: AD conversion stages configured to generate digital data having a value corresponding to a relationship between two analog signals being input and amplifying two analog residual signals with a first amplifier and a second amplifier with gain to be controlled to output the signals; and a gain control part configured to control gain of the first amplifier and the second amplifier on the basis of a monitoring result of the output signals of the first amplifier and the second amplifier. The first amplifier and the second amplifier are formed of open-loop amplifiers, and the gain control part takes out amplitude information of the output signals of the first amplifier and the second amplifier in at least one of the AD conversion stages and performs gain control so that amplitude of the analog signals being output from the stage converges on setting amplitude being set.

Abstract: An improved power supply unit includes a DC power source having a positive terminal and a negative terminal, and a voltage regulating circuit that includes a plurality of elements coupled in series between the positive and negative terminals of the DC power source to regulate the power supply signals supplied thereto to effectively cancel ripple and noise in such power supply signals. In one embodiment, the series-coupled elements include at least one resistor and a transconductive element having a characteristic transconductance value of T. The at least one resistor provides a resistance substantially equal to 1/T. The transconductive element and the one resistor cooperate to suppress spurious voltage level variations produced by the DC power source. The transconductive element may be realized by a thermionic triode, field effect transistor or other suitable device.

Abstract: An improved power supply unit includes a DC power source having a positive terminal and a negative terminal, and a voltage regulating circuit that includes a plurality of elements coupled in series between the positive and negative terminals of the DC power source to regulate the power supply signals supplied thereto to effectively cancel ripple and noise in such power supply signals. In one embodiment, the series-coupled elements include at least one resistor and a transconductive element having a characteristic transconductance value of T. The at least one resistor provides a resistance substantially equal to 1/T. The transconductive element and the one resistor cooperate to suppress spurious voltage level variations produced by the DC power source. The transconductive element may be realized by a thermionic triode, field effect transistor or other suitable device.

Abstract: Disclosed is an Electrical Driving and Recovery System for a High Frequency environment. The recovery system can be applied to drive present day direct-current or alternating-current loads for better efficiency. It has a low-voltage source coupled to a vibrator, a transformer and a bridge-type rectifier to provide a high voltage pulsating signal to a first capacitor. Where a high-voltage source is otherwise available, it may be coupled directly to a bridge-type rectifier, causing a pulsating signal to the first capacitor. The first capacitor in turn is coupled to a high voltage anode of an electrical conversion switching element tube. The switching element tube also includes a low voltage anode which is connected to a voltage source by a commutator and a switching element tube. Mounted around the high voltage anode is a charge receiving plate which is coupled to an inductive load to transmit a high voltage discharge from the switching element tube to the load.