摘要:
The invention relates to an electric device with a winding (12) and means for inducing a current in the winding. A bridge circuit (400) electrically connects the winding (12) to a load (13). According to the invention the bridge circuit (400) includes capacitor means (401, 402), which is adapted for obtaining resonance with the impedance of the winding (12).
摘要:
A converter, for use in high voltage direct and alternating current power transmission comprises a primary charge transfer converter. The charge transfer converter includes first and second primary terminals for connection to one or more electrical networks. The primary charge transfer converter also includes a plurality of charge transfer elements and a plurality of primary switching elements which are connected in a cascade circuit between the first and second primary terminals. Each charge transfer element includes at least one resonant circuit. The primary switching elements are operable to selectively cause charging and discharging of each resonant circuit to transfer charge between the charge transfer elements and thereby create a voltage difference between the first and second primary terminals.
摘要:
An output terminal (P2) of a positive voltage generating circuit (2) and an output terminal (Q1) of a negative voltage generating circuit (4) are connected in series, and an output terminal (Q2) of the negative voltage generating circuit (4) is connected to a ground via a resistor (9). A switching circuit (62, 65) and a series connection circuit of resistors (60, 61, 63, 64) are connected in parallel to each other between the output terminals (P1, P2, Q1, Q2) of the positive voltage generating circuit (2) and the negative voltage generating circuit (4). The switching circuit (65) is on-off driven by a voltage signal taken from a junction point between the resistors (60, 61), and the switching circuit (62) is on-off driven by a voltage signal taken from a junction point between the resistors (63, 64). Accordingly, when the polarity of an output voltage is switched, electric charges accumulated up to that point are discharged through the switching circuit (62, 65) of a voltage OFF-side polarity, so that the voltage quickly falls. As a result, the speed of switching the polarity of the voltage is further increased than before.
摘要:
A voltage multiplier 10 comprises a series of multiplier stages 12a, 12b, 12c, 12d. Each multiplier stage, for example 12b, comprises a first input 16b, a second input 14b, a first output 16c and second output 14c. The first and second outputs of a preceding multiplier stage are interconnected with first and second inputs of a subsequent multiplier stage. Furthermore, each multiplier stages, for example 12b, comprises two series connected diode elements D5, D6 having the same current conducting direction. The two series connected diode elements D5, D6 interconnect the first input 16b and the first output 16c. The second output 14c is coupled between the two series connected diode elements D5, D6. Each multiplier stage, for example 12b, comprises a buffer capacitor C6 interconnecting the respective first input 16b and the respective first output 16c. At least some multiplier stages, for example 12b, comprise a push-pull capacitor C4 interconnecting the respective second input 14b and the respective second output 14c. The first input 16a of a first multiplier stage 12a and the first output 16e of a last multiplier stage 12d provide outputs for a load 42. The second input 14a of the first multiplier stage 12a provides an input for an AC voltage source. The buffer capacitor C3 of the first multiplier stage 12a comprises two series connected buffer capacitor parts C3a, C3b. An input 20 for the AC voltage source 34 is provided between the two buffer capacitor parts C3a, C3b.
摘要:
An ambient energy collector for use in AC/DC applications is described. The ambient energy collector has at least one ambient energy collecting antenna system and a master control unit for operational control of the at least one ambient energy collecting antenna system. The ambient energy collector has a DC voltage boosting circuit for increasing an input voltage, a DC primer power source for powering up the voltage boosting circuit via the input voltage, at least one antenna system for collecting ambient energy, an energy collection circuit for converting and amplifying an AC voltage collected by the antenna of the at least one antenna system into a DC voltage, and an output circuit for providing a load with the DC voltage.
摘要:
An electrostatic painting apparatus (1) includes: a paint gun (4) that has a bell cup (4a) serving as an atomization portion that atomizes a paint, and an air nozzle (7) serving as ana air discharge portion that discharges shaping air for controlling a diffusion pattern of the atomized paint; a high-voltage generator (5) that applies a high voltage to the paint gun (4); and a controller (6) that controls the high voltage to be applied from the high-voltage generator (5), wherein the high-voltage generator (5) generates a high positive voltage.
摘要:
A high voltage power supply (100) is provided. The high voltage power supply includes an inverter (110) which converts a DC voltage input to the high voltage power supply into a first AC voltage, a transformer (120) including an input winding unit and a plurality of output winding units, wherein the input winding unit receives the first AC voltage from the inverter and the plurality of output winding units generates and outputs a second AC voltage, and a voltage multiplier unit (130) which boosts the second AC voltage output by the transformer and outputs a boosted voltage, and the voltage multiplier unit includes a plurality of voltage multipliers which are connected to each other in series and the plurality of voltage multipliers may be connected to the plurality of output winding units respectively.
摘要:
This invention pertains to the control of high voltage power, and in particular to control of high voltage power from low voltage sources while reducing unwanted self resonance in the windings of a self oscillating flyback converter.