constant-current modulation 中文意思是什麼

constant-current modulation 解釋
定流調變
  • constant : adj 1 恆定不變的,固定的,穩定的,恆久的;繼續不斷的。2 不屈不撓的,堅韌的。3 忠實的,有節操的。n...
  • current : adj. 1. 通用的,流行的。2. 現在的,現時的,當時的。3. 流暢的;草寫的。n. 1. 水流;氣流;電流。2. 思潮,潮流;趨勢,傾向。3. 進行,過程。
  • modulation : n 調整,調節;(聲調的)抑揚,變化;【音樂】轉調,變調;【無線電】調制。 amplitude modulation 振...
  1. To reduce the harmonics in the line current, the random pwm mode is adapt. related to the typically constant pwm carrier frequency and its high harmonics, modulation of this frequency can be used to decrease emi and cost no more gain

    為了抑制輸入電流中一些幅值較大的諧波成分,利用dsp控制的特點,電路採用了隨機pwm方式,在不增加系統成本的前提下,有效地抑制了輸入電流的高次諧波含量。
  2. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術,選用智能功率模塊ipm作為逆變開關器件,輸出交流脈沖勵磁信號,以調節勵磁轉換頻率和勵磁電流大小為手段,實現對磁場旋轉頻率和磁場強度大小的有效調節,並通過閉環反饋實現閉環恆流控制。
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