US 9,812,999 B2
AC and DC brushless motor for fan
Tsung-Te Ho, Chiayi County (TW)
Filed by Tsung-Te Ho, Chiayi County (TW)
Filed on Jun. 25, 2015, as Appl. No. 14/749,805.
Prior Publication US 2016/0380561 A1, Dec. 29, 2016
Int. Cl. H02P 6/00 (2016.01); H02K 5/16 (2006.01); H02K 7/08 (2006.01); H02K 11/02 (2016.01); H02K 11/20 (2016.01); H02K 11/33 (2016.01)
CPC H02P 6/002 (2013.01) [H02K 5/16 (2013.01); H02K 7/08 (2013.01); H02K 11/02 (2013.01); H02K 11/20 (2016.01); H02K 11/33 (2016.01)] 6 Claims
OG exemplary drawing
 
1. An alternating current (AC) and direct current (DC) brushless motor, comprising:
a brushless motor and
an active power adjustment mechanism comprising:
an EMI filtering and rectifying unit connected with a lead wire supplying AC power or DC power,
a prior driving unit connected to the EMI filtering and rectifying unit,
a motor driving unit connected to the brushless motor and the prior driving unit,
a constant current unit connected to the EMI filtering and rectifying unit and to the prior driving unit and wherein the constant current unit and the prior driving unit operate in coordination with a semiconductor switch element, a current limitation resistor, and an inductive element to acquire a required power from either an AC supply or from a direct mode constant current from a DC supply,
a protective compensation unit connected to the prior driving unit and to the constant current unit and compensating voltage, current, frequency, or power of the brushless motor,
a motor controlling unit connected to the prior driving unit and generating a frequency generation (FG) alarm output signal,
a sensing unit connected to the motor controlling unit and the brushless motor so as to detect a phase and polarity of the brushless motor, and
a power modulation controlling unit connected to the constant current unit and which has a pulse width modulation (PWM) input controlling signal and wherein the power modulation controlling unit modulates the constant current unit and the prior driving unit and wherein the prior driving unit modulates an output power of the brushless motor.