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| 型号： | TA7712PG |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.025 A, PDIP20 |
| 封装： | 0.300 INCH, 2.54 MM PITCH, LEAD FREE, PLASTIC, DIP-20 |
| 文件页数： | 12/16页 |
| 文件大小： | 421K |
| 代理商： | TA7712PG |
TA7712P/PG/F/FG
2006-3-2
5
APPLICATION OF TA7712P/PG, TA7712F/FG
Like a video disk player, TA7712P/PG, TA7712F/FG is provided with the stopping function which in a short time,
stops the motor having a large inertia, and makes the quick diskchange possible.
To make the frequency generator (FG) unnecessary which was formerly required for fetching the rotation signal,
the signal from the position sensing input is ORed and is output to FG output pin (pin (11) / (13)).
Therefore, for FG output, three position sensing outputs (Ha, Hb, Hc) are ORed, and the rotation speed signal of
the frequency of six times that of one output can be fetched resulting in making it possible to obtain a sufficient
controlling characteristic with the F / V (FrequencyVoltage) conversion method of monostable type. The
difference from TA7713P/PG is that the stop function is automated in TA7713P/PG, however, it is operated by the
external signal in TA7712P/PG.
Description is made on the application of TA7713P/PG in the following.
(1) Operation of FG output (pin (11) / (13)) and TFG (pin (12) / (14))
In Fig.1, Q1 and Q2 are the monostable multivibrator to which gate (Q2 base) the signal from each position
sensing input of Ha, Hb and Hc is input after ORed and shaped in waveform by FF.
The pulse width of MMV made by Q1 and Q2 is determined by R2 and C2 to be connected to TFG (pin (12) /
(14)), and the square wave having the pulse width to be determined by C2 and R2 is output.
Of course, this frequency is proportional to the rotation signal and this frequency is six times the frequency of
each position sensing. (6 per 1 electrical rotation)
F / V conversion operation is made through connecting FG0 output to LPF for integration. However, if R2 is
made variable, the conversion gain can be controlled.
Fig. 1
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| TA7712PG(5) | 制造商:Toshiba 功能描述:3-Phase Bi-Directional Motor Controller 5V 20-Pin PDIP Cut Tape |
| TA7713P | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:3 PHASE BI-DIRECTIONAL TYPE MOTOR CONTROL IC |
| TA7715P | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FREQUENCY TO VOLTAGE CONVERTER |
| TA7733 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FUNCTIONAL BRIDGE DRIVER |
| TA7733F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FUNCTIONAL BRIDGE DRIVER |
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