Motor Driving Apparatus Capable of Driving Motor with Reliability
First Claim
1. A motor driving apparatus, comprising a first power source, a driving circuit receiving supply of electric power from said first power source and driving a motor, a second power source charged by receiving a second DC voltage lower than a first DC voltage output from said first power source, a voltage converter converting said first DC voltage to said second DC voltage between said first power source and said second power source, and a converter control circuit controlling said voltage converter;
- wherein said converter control circuit is connected to said first power source and operates using said first DC voltage as a power supply voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
DC/DC converter is connected directly to a main battery with no system relays intervening therebetween. The DC/DC converter drops and then supplies the voltage of a power supplied from the high voltage main battery to a subsidiary battery. A DC/DC converter control circuit receives a supply of the power from the main battery to control the dropping operation of the DC/DC converter. Even when the subsidiary battery goes dead, the DC/DC converter is responsive to a control signal outputted from the DC/DC converter control circuit using, as its power supply, the main battery, to perform a boosting operation, thereby quickly charging the subsidiary battery.
42 Citations
5 Claims
-
1. A motor driving apparatus, comprising
a first power source, a driving circuit receiving supply of electric power from said first power source and driving a motor, a second power source charged by receiving a second DC voltage lower than a first DC voltage output from said first power source, a voltage converter converting said first DC voltage to said second DC voltage between said first power source and said second power source, and a converter control circuit controlling said voltage converter; - wherein
said converter control circuit is connected to said first power source and operates using said first DC voltage as a power supply voltage. - View Dependent Claims (2, 3, 4, 5)
- wherein
Specification