Inverter and control system
A converter and feedback control technology, applied in the field of converters, to achieve the effect of reducing power consumption
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Embodiment approach 1
[0044] 1. Application example
[0045] Hereinafter, an embodiment (hereinafter also referred to as "embodiment") of one aspect of the present invention will be described with reference to the drawings. First, according to figure 1 , an example of a converter to which the present invention is applied will be described. figure 1 It is a circuit diagram showing an example of the configuration of main parts of the inverter 1a of the first embodiment. here, figure 1 Also shown in is the control target device of the inverter 1 a , that is, the motor 2 .
[0046] The inverter 1a is a network-type inverter capable of communicating with a host device via a network, and includes a power supply circuit 40 that supplies power to a motor 2 as a device to be controlled. Communication between the inverter 1a and the host device will be described in detail later.
[0047] As shown in the figure, the inverter 1 a includes a power supply circuit 40 , an MPU (Micro Processor Unit: microp...
Embodiment approach 2
[0070] Embodiment 2 of the present invention will be described below. Here, in each of the embodiments described below, for convenience of description, members having the same functions as those described in the above-mentioned embodiments are assigned the same symbols and will not be described repeatedly.
[0071] image 3 It is a circuit diagram showing an example of the main part configuration of the inverter 1b according to the second embodiment. and figure 1 The difference between the shown converter 1a is that the converter 1b is loaded with sharing figure 1 The sub-MPU 50 is a partial function of the MPU 20a shown. Sub MPU 50 is connected to power supply 10 via switch 30 .
[0072] The master MPU20b is the slave figure 1 In the shown MPU20a, the structure after the feedback control circuit is removed. The main MPU 20b may also include digital input terminals and digital output terminals.
[0073] On the other hand, sub-MPU 50 includes a feedback control circui...
Embodiment approach 3
[0079] Embodiment 3 of the present invention will be described below. Figure 4 It is a circuit diagram showing an example of the configuration of main parts of an inverter 1c according to the third embodiment. and figure 1 The shown converter 1a and figure 2 The inverter 1b shown is different in that the inverter 1c has a communication MPU 20c serving as a communication unit 6 separate from the inverter main body MPU 60 in the inverter main body (main unit) 7, and the communication MPU 20c includes figure 1 The communication circuit 21 and the power supply control circuit 22 in the shown converter 1a.
[0080] The communication MPU20c converts the communication content with the host computer 3 into the communication frame which the inverter main body 7 can decipher, and sends it to the inverter main body MPU60. In addition, the communication MPU 20 c converts various information received from the converter main body MPU 60 into a form transmittable to the host computer ...
PUM
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