使用运放搭建的恒流源。 首先我们需要搭建一个基准电压，这个可以使用经典的TL431芯片搭建，如下图所示： 运放电路搭建如下，根据运放的“虚短”，可以得知：I = Vref / Rref。 而根据上式计算结果输出电流应该是I = 2.495V / 2Ω = 1.2475A。但实际计算结果却小于该 ...

On the eve of its debut on the bourse, Lub-rref (Bangladesh) Limited dealt some good news for its investors: its net profit jumped 13.2 per cent between July and December last year to Tk 8.7 crore.

Lub-rref (Bangladesh) Ltd, a lubricant producer, saw its profit nosedive 76 percent year-on-year in the July-December period of the financial year 2023-24. The company's profit stood at Tk 3.6 crore, ...

The bourse is set to get two more new companies after the Bangladesh Securities and Exchange Commission (BSEC) on Wednesday approved the initial public offering (IPO) applications of NRB Commercial ...

1 Day LRBDL -0.97% DJIA -0.10% S&P Mid Cap 400 0.06% Basic Materials/Resources 0.40% ...

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Lub-rref, a local lubricant producer, is set to invest Tk 400 crore to establish the country's first state-of-the-art base oil refinery with an aim to meet the growing demand for lubricants from both ...

Learn how to implement the Reduced Row Echelon Form (RREF) algorithm from scratch in Python! Step-by-step, we’ll cover the theory, coding process, and practical examples for solving linear systems.