Working principle of hydraulic directional valve The number of passages held by the hydraulic directional valve according to the directional valve is different: two-way, three-way, four-way and five-way. The absolute movement of the valve body with the wrong spool is used to ...more...

Telecom Vocabulary (ATM cell) disassembler / assembler (Printer) leave space after printing (Phone) wake up alarm call (Phone) Acoustic shock / acoustic shock (Phone) User name address name (On phone equipment) acoustic hood (Cable) air-tight joint (Ionosphere) D-layer ...more...

ST and Stollmann work together to provide a complete NFC solution STMicroelectronics and communication protocol software supplier Stollmann announced a cooperation agreement, the two parties will jointly provide mobile phone manufacturers and mobile consumer electronics manuf ...more...

ACM-12864 Chinese character LCD driver sbit p_csa = P2 ^ 6; sbit p_csb = P2 ^ 7; sbit p_gnda = P2 ^ 5; sbit p_gndb = P2 ^ 4; sbit p_di = P2 ^ 3; sbit p_rw = P2 ^ 2; sbit p_e = P2 ^ 1; Busy judge void lcd_busy (void) { p_di = 0; p_rw = 1; P0 = 0xff; while (1) { p_e ...more...

Abstract: A simple RC filter with an external transistor driver rejects LDO noise. A plot of noise density vs. frequency shows that the filter rejects LDO noise by more than 46dB, and achieves a noise floor of 7nV / . Of the many low-dropout (LDO) regulators providing voltage ...more...

Abstract: A simple RC filter with an external transistor driver rejects LDO noise. A plot of noise density vs. frequency shows that the filter rejects LDO noise by more than 46dB, and achieves a noise floor of 7nV / . Of the many low-dropout (LDO) regulators providing voltage ...more...

Abstract: In the past, large external filters and shielded cables could be used to solve EMI / EMC (electromagnetic interference or electromagnetic compatibility) problems in audio / video products. These methods not only increase the cost, but also affect the performance of th ...more...