37results about How to "Reduce instantaneous power" patented technology

The invention discloses a draining-spinning control method for a multi-drum washing machine. The washing machine at least comprises a first washing drum and a second washing drum; before the first washing drum executes a draining procedure or a spin-drying procedure, whether the second washing drum is in execution of the draining procedure or the spin-drying procedure is judged; if the second washing drum is in execution of the draining procedure or the spin-drying procedure, the first washing drum continues to execute a washing procedure or a rinsing procedure, or the draining or spin-drying execution is suspended until spin-drying of the second washing drum is finished; if the second washing drum is not in execution of the draining procedure or the spin-drying procedure, the first washing drum starts the draining procedure and the spin-drying procedure. By means of the method, the first washing drum and the second washing drum cannot execute the draining-spinning procedures simultaneously and one washing drum continues to execute the washing procedure or the rinsing procedure during waiting, so that waiting time of the washing machine is used reasonably, and the clothing washing efficiency is increased. Meanwhile, the draining-spinning control method is simple, reliable, remarkable in effect and suitable for being popularized and used.

A washing machine comprises a first washing drum with a first heater and a second washing drum with a second heater. Before the first washing drum performs a heating procedure, it is necessary to determine whether the second washing drum is performing the heating procedure; if not, the first washing drum performs the heating procedure; if yes, it is necessary to determine whether the remaining heating time of the second washing drum is less than a set value, T min; if yes, the first washing drum pauses the heating procedure; when the second washing drum finishes performing the heating procedure, the first washing drum then performs the heating procedure; if not, remaining heating time of the first washing drum and that of the second washing drum are determined, whichever drum having the shorter remaining heating time performs the heating procedure first, while the other drum performs the heating procedure second.

The invention discloses an auxiliary power source bootstrapping circuit of a power source converting device, comprising an input filtering capacitor, a surge protection resistor, a surge protection switch, a bootstrapping charging resistor, a bootstrapping energy storage capacitor and an auxiliary power source. One end of the input filtering capacitor is connected with a high-voltage input positive end while the other end of the input filtering capacitor is connected with a common end of the surge protection switch; a normally-opened point of the surge protection switch is connected with a high-voltage input negative end; the surge protection resistor is connected in parallel between the common point and the normally-opened point of the surge protection switch; one end of the bootstrapping charging resistor is connected with a normally-closed point of the surge protection switch; the other end of the bootstrapping charging resistor is connected with one end of the bootstrapping energystorage capacitor; the other end of the bootstrapping energy storage capacitor is connected with a high-voltage input negative end; and a control power supply end of the auxiliary power source is connected in parallel at the two ends of the bootstrapping energy storage capacitor. The auxiliary power source bootstrapping circuit of the power source converting device has the advantages of reducing the power consumption and the occupation space and improving the reliability.